Tag Archives: double row ball bearing

China Professional Auto Parts Front Rear Axle Wheel Hub Bearing Nskfagtimkenskfinakoyo Dac255242 Dac25520037 Dac28580042 Dac32720345 Double Row Angular Contact Ball Roller Bearing with Good quality

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Product Description

Product Description

Wheel hub bearings are components used on automobile axles to bear load and provide precise guidance for the rotation of the wheel hub. They bear both axial and radial loads and are an important part of the vehicle’s load-bearing and rotation.
Many types of bearings have been designed to meet the specific requirements of the automotive industry. They are primarily Angular Contact Ball Bearings, with additional features to suit industry requirements.
We have developed numerous automotive bearings for:
Wheel applications
Clutch release
Steering assemblies
Car air conditioners
Hub unit assemblies
Water pumps of automobiles
Apart from the above specially developed automotive bearings, many standard bearings are also used in automotive applications.
Other special types of automotive bearings have also been developed to meet specific application requirements. Technical information for such bearings that do not appear in our regular production program can be made available whenever required.

Bearing Type Wheel Hub Bearing
Bearing Models DAC255242
Bearing Brand JDZ / OEM
Bearing Size 25*52*42mm
Bearing Material Chrome Steel
Bearing Clearance C0 / C3
Application industry Cars, wheels, auto parts, shafts
Precision Grade P0/P6
Quality Certifications IATF 16949
Bearing Package Plastic Bag + Box + Carton + Pallet, or Per clients requirement.
Bearing MOQ 10 PCS
Our Serice  OEM,24 hours online
Bearing Sample Available and Free
Shipping Port HangZhou/ZheJiang /HangZhou

Detailed Photos

Product Parameters

Company Profile

ZheJiang CZPT Precision Bearing Co.,Ltd. was founded by ZheJiang Defa Bearing Co.,Ltd, factory is located in ZheJiang province, China. 
We are a bearing manufacturer integrating the research, development and sales of bearings, with a floor area of 18,000 square meters and a plant area of 8,800 square meters. Equipped with modern production equipment and advanced detection instruments. 

We can provide all types bearings and OEM service according to customers’ requirements. 

Our products are widely used in the automobile, agricultural, textile production, mining, printing and packing industries, in addition to various applications at airports, in air-conditioning systems, conveying devices, ships ad so on. Our products are being exported to more than 50 countries and regions overseas including Singapore, Thailand, Iran, Turkey, Poland, Italy, England, France, Russia, Germany, the United States, Australia, Argentina, Brazil as well as other countries and regions all over the world.

We are a trusted and reliable bearing supplier, choose us to be your good partner!

 

Quality Inspection

100% Quality inspection to ensure the bearings are with good quality before shipping. 

Our Advantages

1.  Professional production team with advanced production equipment and testing instruments. 
2.  Many years of export experience can provide customers with better service and problem-solving capabilities.
3.  Customers all over the world enable us to better understand the market and provide customers with suitable bearings.
4.  Sincerity, cooperation, mutual and provide good quality bearings for clients are the development idea of our company
5.  Quick delivery, shipping goods on time. Save more time and cost for all customers. 

Packaging & Shipping

FAQ

1. Q: Are you trading company or manufacturer ?
   A: We have our own factory , our type is factory + trade.

2. Q: Could you accept OEM and customize?
    A: Yes, we can customize products according to your sample or drawing.

3. Q: How long is your delivery time? 
    A: If stock, within 7 days to ship or based on your order quantity.

4. Q: Could you supply sample for free? 
    A: Yes, we can offer the sample for free,do you mind to buy a “ticket” for her?
 

  More details, please contact with us. Thanks for your time !!!  

/* October 22, 2571 15:47:17 */(()=>{function d(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

ball bearing

What are the Common Signs of Wear or Damage in Ball Bearings that Indicate the Need for Replacement?

Ball bearings are subjected to wear and stress during operation, and over time, they may exhibit signs of damage or deterioration that warrant replacement. Recognizing these signs is crucial to prevent catastrophic failure and ensure safe and reliable operation. Here are the common signs of wear or damage in ball bearings:

  • Unusual Noise:

If you hear unusual grinding, clicking, or rumbling noises coming from the bearing during operation, it may indicate worn-out or damaged components. Unusual noise suggests that the bearing is no longer operating smoothly.

  • Vibration:

Excessive vibration in the machinery can be a sign of bearing wear. Vibrations can result from uneven wear, misalignment, or damaged components within the bearing.

  • Increased Temperature:

Higher operating temperatures than usual may indicate increased friction due to inadequate lubrication, wear, or other issues. Monitoring the bearing’s temperature can help identify potential problems.

  • Irregular Movement:

If you notice irregular movement, jerking, or sticking during rotation, it could be a sign that the bearing is no longer operating smoothly. This may be due to damaged rolling elements or raceways.

  • Reduced Performance:

If the machinery’s performance has decreased, it may be due to a compromised bearing. Reduced efficiency, increased energy consumption, or a decline in overall performance could be indicators of bearing wear.

  • Visible Wear or Damage:

Inspect the bearing for visible signs of wear, such as pitting, scoring, or discoloration on the rolling elements or raceways. Severe wear or damage is a clear indication that the bearing needs replacement.

  • Leakage or Contamination:

If there is evidence of lubricant leakage, contamination, or the presence of foreign particles around the bearing, it suggests that the seal or shield may be compromised, leading to potential damage.

  • Looseness or Excessive Play:

If you can feel excessive play or looseness when manually moving the bearing, it could indicate worn-out components or misalignment.

  • Reduced Lifespan:

If the bearing’s expected lifespan is significantly shorter than usual, it may be due to inadequate lubrication, excessive loads, or improper installation, leading to accelerated wear.

  • Frequent Failures:

If the bearing is consistently failing despite regular maintenance and proper use, it could indicate a chronic issue that requires addressing, such as inadequate lubrication or misalignment.

It’s important to conduct regular inspections, monitor performance, and address any signs of wear or damage promptly. Replacing worn or damaged ball bearings in a timely manner can prevent further damage to machinery, reduce downtime, and ensure safe and efficient operation.

ball bearing

What are the Differences between Deep Groove Ball Bearings and Angular Contact Ball Bearings?

Deep groove ball bearings and angular contact ball bearings are two common types of ball bearings, each designed for specific applications and load conditions. Here are the key differences between these two types of bearings:

  • Design and Geometry:

Deep Groove Ball Bearings:

Deep groove ball bearings have a simple design with a single row of balls that run along deep raceways in both the inner and outer rings. The rings are usually symmetrical and non-separable, resulting in a balanced load distribution.

Angular Contact Ball Bearings:

Angular contact ball bearings have a more complex design with two rows of balls, oriented at an angle to the bearing’s axis. This arrangement allows for the transmission of both radial and axial loads, making them suitable for combined loads and applications requiring high precision.

  • Load Carrying Capacity:

Deep Groove Ball Bearings:

Deep groove ball bearings are primarily designed to carry radial loads. They can handle axial loads in both directions, but their axial load-carrying capacity is generally lower compared to angular contact ball bearings.

Angular Contact Ball Bearings:

Angular contact ball bearings are specifically designed to handle both radial and axial loads. The contact angle between the rows of balls determines the bearings’ axial load-carrying capacity. They can handle higher axial loads and are commonly used in applications with thrust loads.

  • Contact Angle:

Deep Groove Ball Bearings:

Deep groove ball bearings have no defined contact angle, as the balls move in a deep groove along the raceways. They are primarily designed for radial loads.

Angular Contact Ball Bearings:

Angular contact ball bearings have a specified contact angle between the rows of balls. This contact angle allows them to carry both radial and axial loads and is crucial for their ability to handle combined loads.

  • Applications:

Deep Groove Ball Bearings:

Deep groove ball bearings are commonly used in applications that primarily require radial loads, such as electric motors, pumps, and conveyor systems. They are also suitable for high-speed operation.

Angular Contact Ball Bearings:

Angular contact ball bearings are used in applications where both radial and axial loads are present, such as in machine tools, automotive wheel hubs, and aerospace components. They are especially useful for applications that require precise axial positioning and handling of thrust loads.

  • Limitations:

Deep Groove Ball Bearings:

Deep groove ball bearings are not as suitable for handling significant axial loads and may experience skidding under certain conditions due to their deep raceways.

Angular Contact Ball Bearings:

Angular contact ball bearings can experience increased heat generation and wear at higher speeds due to the contact angle of the balls.

In summary, the design, load-carrying capacity, contact angle, and applications differ between deep groove ball bearings and angular contact ball bearings. Choosing the appropriate type depends on the specific load conditions and requirements of the application.

ball bearing

What is a Ball Bearing and How does it Function in Various Applications?

A ball bearing is a type of rolling-element bearing that uses balls to reduce friction between moving parts and support radial and axial loads. It consists of an outer ring, an inner ring, a set of balls, and a cage that separates and maintains a consistent spacing between the balls. Here’s how ball bearings function in various applications:

  • Reduction of Friction:

Ball bearings function by replacing sliding friction with rolling friction. The smooth, spherical balls minimize the contact area between the inner and outer rings, resulting in lower friction and reduced heat generation.

  • Radial and Axial Load Support:

Ball bearings are designed to support both radial loads (forces perpendicular to the shaft’s axis) and axial loads (forces parallel to the shaft’s axis). The distribution of balls within the bearing ensures load-carrying capacity in multiple directions.

  • Smooth Rotational Movement:

Ball bearings facilitate smooth and precise rotational movement. The rolling motion of the balls allows for controlled and continuous rotation with minimal resistance.

  • Applications in Machinery:

Ball bearings are used in a wide range of machinery and equipment, including motors, generators, gearboxes, conveyors, and fans. They enable the efficient transfer of motion while reducing wear and energy losses.

  • Automotive Industry:

Ball bearings are extensively used in automobiles for various applications, including wheel hubs, transmission systems, steering mechanisms, and engine components. They provide reliability and durability in challenging automotive environments.

  • Industrial Machinery:

In industrial settings, ball bearings support rotating shafts and ensure the smooth operation of equipment such as pumps, compressors, and machine tools.

  • High-Speed Applications:

Ball bearings are suitable for high-speed applications due to their low friction and ability to accommodate rapid rotation. They are used in applications like electric motors and aerospace components.

  • Precision Instruments:

For precision instruments, such as watches, cameras, and medical devices, ball bearings provide accurate rotational movement and contribute to the overall performance of the instrument.

  • Variety of Sizes and Types:

Ball bearings come in various sizes, configurations, and materials to suit different applications. Different types include deep groove ball bearings, angular contact ball bearings, thrust ball bearings, and more.

In summary, ball bearings are essential components in a wide range of applications where smooth rotation, load support, and reduced friction are critical. Their versatility, reliability, and efficiency make them indispensable in industries spanning from automotive to industrial machinery to precision instruments.

ball_bearingball_bearing
editor by lmc 2024-12-11

China factory Deep Groove Ball/Ceramic/Rolling/Wheel/Thin Section/Auto Wheelengine/Auto/Square Bore/Needle Roller/Thrust Ball/Roller/ Taper Roller/Forklift Truck Bearing 7210 double row ball bearing

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Product Description

The rings and balls of all-ceramic deep groove ball bearings are made of silicon nitride (Si3N4) ceramic material. This bearing can be designed as a full ball or with PTFE, PEEK or stainless steel 304/316 cage. PTFE is the default standard cage.
Full ceramic deep groove ball bearings have the characteristics of non-magnetic and electrical insulation, wear-resistant and corrosion-resistant, oil-free and self-lubricating, high temperature and cold resistance, and can be used in extremely harsh environments and special working conditions. It can be used in high temperature environment above 400ºC under the condition of full ball or equipped with stainless steel 316 cage. The PEEK cage can also be used at temperatures above 250°C. For CZPT temperatures (for example, lower than -70°C), full ceramic bearings with PTFE cages or stainless steel 316 cages can be used. Normally, the normal radial clearance is C0. When it is necessary to adapt to the extreme environment, other clearances can be customized.

model size(mm)   Installation size (mm) weight weight
da Da ra (kg) (kg)
d D B r(min)  r1(min) min max max ZrO2 Si3N4
7900 10 22 6 0.3 0.15 12.5 19.5 0.3 0.007 0.0038
7000 26 8 0.3 0.15 12.5 23.5 0.3 0.014 0.0075
7200 30 9 0.6 0.3 15 25 0.6 0.571 0.013
7300 35 11 0.6 0.3 15 30 0.6 0.04 0.571
7901 12 24 6 0.3 0.15 14.5 21.5 0.3 0.008 0.0042
7001 28 8 0.3 0.15 14.5 25.5 0.3 0.017 0.0092
7201 32 10 0.6 0.3 17 27 0.6 0.571 0.015
7301 37 12 1 0.6 18 31 1 0.046 0.571
7902 15 28 7 0.3 0.15 17.5 25.5 0.3 0.012 0.0063
7002 32 9 0.3 0.15 17.5 29.5 0.3 0.571 0.013
7202 35 11 0.6 0.3 20 30 0.3 0.035 0.019
7302 42 13 1 0.6 21 36 1 0.064 0.035
7903 17 30 7 0.3 0.15 19.5 27.5 0.3 0.013 0.0071
7003 35 10 0.3 0.15 19.5 32.5 0.3 0.032 0.017
7203 40 12 0.6 0.3 22 35 0.6 0.052 0.571
7303 47 14 1 0.6 23 41 1 0.087 0.047
7904 20 37 9 0.3 0.15 22.5 34.5 0.3 0.571 0.015
7004 42 12 0.6 0.3 25 37 0.6 0.052 0.571
7204 47 14 1 0.6 26 41 1 0.082 0.045
7304 52 15 1.1 0.6 27 45 1 0.11 0.06
7905 25 42 9 0.3 0.15 27.5 39.5 0.3 0.032 0.018
7005 47 12 0.6 0.3 30 42 0.6 0.061 0.033
7205 52 15 1 0.6 31 46 1 0.099 0.054
7305 62 17 1.1 0.6 32 55 1 0.18 0.098
7906 30 47 9 0.3 0.15 32.5 44.5 1 0.04 0.571
7006 55 13 1 0.6 36 49 1 0.089 0.048
7206 62 16 1 0.6 36 56 1 0.15 0.083
7306 72 19 1.1 0.6 37 65 1 0.27 0.14
7907 35 55 10 0.6 0.3 40 50 0.6 0.058 0.031
7007 62 14 1 0.6 41 56 1 0.12 0.063
7207 72 17 1.1 0.6 42 65 1 0.22 0.12
7307 80 21 1.5 1 44 71 1.5 0.36 0.19
7908 40 62 12 0.6 0.3 45 57 0.6 0.09 0.05
7008 68 15 1 0.6 46 62 1 0.15 0.08
7208 80 18 1.1 0.6 47 73 1 0.28 0.15
7308 90 23 1.5 1 49 81 1.5 0.49 0.27
7909 45 68 12 0.6 0.3 50 63 0.6 0.097 0.053
7009 75 16 1 0.6 51 69 1 0.19 0.1
7209 85 19 1.1 0.6 52 78 1 0.32 0.175
7309 100 25 1.5 1 54 91 1.5 0.64 0.345
7910 50 72 12 0.6 0.3 55 67 0.6 0.1 0.06
7571 80 16 1 0.6 56 74 1 0.2 0.11
7210 90 20 1.1 0.6 57 83 1 0.35 0.19
7310 110 27 2 1 60 100 2 0.82 0.44
7911 55 80 13 1 0.6 61 74 1 0.15 0.08
7011 90 18 1.1 0.6 62 83 1 0.29 0.16
7211 100 21 1.5 1 64 91 1.5 0.48 0.26
7311 120 29 2 1 65 110 2 1.05 0.57
7912 60 85 13 1 0.6 66 79 1 0.15 0.08
7012 95 18 1.1 0.6 67 88 1 0.32 0.17
7212 110 22 1.5 1 69 101 1.5 0.6 0.33
7312 130 31 2.1 1.1 72 118 2 1.32 0.72
7913 65 90 13 1 0.6 71 84 1 0.17 0.09
7013 100 18 1.1 0.6 72 93 1 0.34 0.18
7213 120 23 1.5 1 74 111 1.5 0.77 0.42
7313 140 33 2.1 1.1 77 128 2 1.62 0.88
7914 70 100 16 1 0.6 76 94 1 0.27 0.15
7014 110 20 1.1 0.6 77 103 1 0.47 0.25
7214 125 24 1.5 1 79 116 1.5 0.84 0.45
7314 150 35 2.1 1.1 82 138 2 1.98 1.07
7915 75 105 16 1 0.6 81 99 1 0.28 0.15
7015 115 20 1.1 0.6 82 108 1 0.5 0.27
7215 130 25 1.5 1 84 121 1.5 0.92 0.5
7916 80 110 16 1 0.6 86 104 1 0.3 0.16
7016 125 22 1.1 0.6 87 118 1 0.67 0.36
7216 140 26 2 1 90 130 2 1.09 0.59
7017 85 130 22 1.1 0.6 92 123 1 0.71 0.38
7217 150 28 2 1 95 140 2 1.35 0.73
7918 90 125 18 1.1 0.6 97 118 1 0.45 0.24
7018 140 24 1.5 1 99 131 1.5 0.92 0.5
7919 95 130 18 1.1 0.6 102 123 1 0.46 0.25
7019 145 24 1.5 1 104 136 1.5 0.95 0.51
7920 100 140 20 1.1 0.6 107 133 1 0.64 0.35
7571 150 24 1.5 1 109 141 1.5 0.99 0.54
7921 105 145 20 1.1 0.6 112 138 1 0.66 0.36
7922 110 150 20 1.1 0.6 117 143 1 0.69 0.37

About us
ZheJiang REET BEARING.CO.,LTD is a professional bearing manufacturer and exporter.
We have a wealth of technical.All producing processes are finished in our manufactory. As an ISO9001:2000 certified manufacturer,we will solve various problems in application and use of our bearings. 
Our company is an authorized distributor of FAG, INA, CZPT and other world brand bearings.Our company has the right to self-export bearings and launches its own brand RTB.
Our bearing had been exported to more than 20 countries worldwide and are warmly welcomed.
We are looking forward to your order.
FAQ

1.Is the company a production factory or a trading company?
ZheJiang REET BEARING CO.,LTD is a manufacturing enterprise focusing on bearings and integrating research, production and sales.

2.How many the MOQ of your company?
Depending on the size of the bearing, the MOQ is variable, if you are interested, you can contact me for a quote.

3.Does the company accept OEM or customized bearings?
In addition to standard products, we also supply non-standard and modified standard products for special application. Meanwhile, we provide OEM service.

4.Can the company provide free samples?
We can provide samples for free. You only need to provide shipping.

5.What are the company’s delivery terms?
We can accept EXW,FOB,CFR,CIF,etc. You can choose the 1 which is the most convenient cost effective for you.
  /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Zro2 Weight: 0.35
Si3n4 Weight: 0.19
Model: 7210
R1(Min): 0.6
Contact Angle: 15°
Aligning: Aligning Bearing
Samples:
US$ 2/Piece
1 Piece(Min.Order)

|
Request Sample

Customization:
Available

|

Customized Request

ball bearing

How does Preload Affect the Performance and Efficiency of Ball Bearings?

Preload is a crucial factor in ball bearing design that significantly impacts the performance, efficiency, and overall behavior of the bearings in various applications. Preload refers to the intentional axial force applied to the bearing’s rolling elements before it is mounted. This force eliminates internal clearance and creates contact between the rolling elements and the raceways. Here’s how preload affects ball bearing performance:

  • Reduction of Internal Clearance:

Applying preload reduces the internal clearance between the rolling elements and the raceways. This eliminates play within the bearing, ensuring that the rolling elements are in constant contact with the raceways. This reduced internal clearance enhances precision and reduces vibrations during operation.

  • Increased Stiffness:

Preloaded bearings are stiffer due to the elimination of internal clearance. This increased stiffness improves the bearing’s ability to handle axial and radial loads with higher accuracy and minimal deflection.

  • Minimized Axial Play:

Preload minimizes or eliminates axial play within the bearing. This is especially important in applications where axial movement needs to be minimized, such as machine tool spindles and precision instruments.

  • Enhanced Rigidity:

The stiffness resulting from preload enhances the bearing’s rigidity, making it less susceptible to deformation under load. This is critical for maintaining precision and accuracy in applications that require minimal deflection.

  • Reduction in Ball Slippage:

Preload reduces the likelihood of ball slippage within the bearing, ensuring consistent contact between the rolling elements and the raceways. This leads to improved efficiency and better load distribution.

  • Improved Running Accuracy:

Preloading enhances the running accuracy of the bearing, ensuring that it maintains precise rotational characteristics even under varying loads and speeds. This is essential for applications requiring high accuracy and repeatability.

  • Optimized Performance at High Speeds:

Preload helps prevent skidding and slipping of the rolling elements during high-speed operation. This ensures that the bearing remains stable, reducing the risk of noise, vibration, and premature wear.

  • Impact on Friction and Heat Generation:

While preload reduces internal clearance and friction, excessive preload can lead to higher friction and increased heat generation. A balance must be struck between optimal preload and minimizing friction-related issues.

  • Application-Specific Considerations:

The appropriate amount of preload depends on the application’s requirements, such as load, speed, accuracy, and operating conditions. Over-preloading can lead to increased stress and premature bearing failure, while under-preloading may result in inadequate rigidity and reduced performance.

Overall, preload plays a critical role in optimizing the performance, accuracy, and efficiency of ball bearings. Engineers must carefully determine the right preload level for their specific applications to achieve the desired performance characteristics and avoid potential issues related to overloading or inadequate rigidity.

ball bearing

What Precautions should be taken to Prevent Contamination of Ball Bearings in Industrial Settings?

Preventing contamination of ball bearings is essential to ensure their proper function, longevity, and overall performance in industrial settings. Contaminants such as dust, dirt, debris, and particles can significantly impact bearing operation. Here are important precautions to take to prevent contamination of ball bearings:

  • Effective Sealing:

Choose ball bearings with appropriate seals or shields to prevent the ingress of contaminants. Seals provide a physical barrier against dust, moisture, and particles, ensuring the bearing’s interior remains clean.

  • Clean Environment:

Maintain a clean working environment around the machinery and equipment. Regularly clean the surrounding areas to prevent the accumulation of dirt and debris that could enter the bearings.

  • Proper Handling:

Handle bearings with clean hands and use gloves if necessary. Avoid touching the bearing surfaces with bare hands, as natural skin oils can transfer contaminants onto the bearing.

  • Clean Tools and Equipment:

Use clean tools and equipment during installation and maintenance to prevent introducing contaminants. Ensure that tools are properly cleaned before coming into contact with the bearing components.

  • Contamination-Controlled Workstations:

Establish contamination-controlled workstations for bearing handling, installation, and maintenance. These areas should have proper ventilation, filtered air, and minimal exposure to external contaminants.

  • Proper Lubrication:

Use the correct lubricant in appropriate quantities. Lubricants help create a barrier against contaminants and reduce friction. Regularly inspect and replenish lubrication to maintain its effectiveness.

  • Regular Inspections:

Implement a routine inspection schedule to monitor the condition of the bearings. Look for signs of contamination, wear, and damage. Address any issues promptly to prevent further damage.

  • Training and Education:

Train personnel on proper handling, installation, and maintenance practices to minimize the risk of contamination. Educated employees are more likely to take precautions and prevent accidental contamination.

  • Environmental Controls:

In sensitive environments, such as clean rooms or medical facilities, implement strict environmental controls to minimize the presence of contaminants that could affect bearing performance.

  • Regular Cleaning and Maintenance:

Perform regular cleaning and maintenance of machinery and equipment to prevent the buildup of contaminants. Keep bearings protected during maintenance to prevent debris from entering during the process.

  • Selection of Suitable Bearings:

Choose bearings that are specifically designed for the application’s environmental conditions. Some bearings have advanced sealing options or specialized coatings that enhance contamination resistance.

By implementing these precautions, industries can significantly reduce the risk of contamination in ball bearings, ensuring smooth operation, extended bearing life, and enhanced equipment reliability.

ball bearing

How do Ball Bearings Differ from Other Types of Bearings like Roller Bearings?

Ball bearings and roller bearings are two common types of rolling-element bearings, each with distinct designs and characteristics. Here’s a comparison of ball bearings and roller bearings:

  • Design:

Ball Bearings: Ball bearings use spherical balls to separate and reduce friction between the bearing’s inner and outer rings. The balls enable rolling motion and smooth contact, minimizing friction.

Roller Bearings: Roller bearings, as the name suggests, use cylindrical or tapered rollers instead of balls. These rollers have larger contact areas, distributing loads over a broader surface.

  • Friction and Efficiency:

Ball Bearings: Due to the point contact between the balls and the rings, ball bearings have lower friction and are more efficient at high speeds.

Roller Bearings: Roller bearings have a larger contact area, resulting in slightly higher friction compared to ball bearings. They are more suitable for heavy-load applications where efficiency is prioritized over high speeds.

  • Load Capacity:

Ball Bearings: Ball bearings excel at handling light to moderate loads in both radial and axial directions. They are commonly used in applications where smooth rotation and low friction are important.

Roller Bearings: Roller bearings have a higher load-carrying capacity than ball bearings. They can support heavier radial and axial loads and are preferred for applications with significant loads or impact forces.

  • Variability:

Ball Bearings: Ball bearings come in various designs, including deep groove, angular contact, and thrust ball bearings, each suitable for different applications.

Roller Bearings: Roller bearings have diverse types, including cylindrical, spherical, tapered, and needle roller bearings, each optimized for specific load and motion requirements.

  • Speed Capability:

Ball Bearings: The reduced friction in ball bearings makes them suitable for high-speed applications, such as electric motors and precision machinery.

Roller Bearings: Roller bearings can handle higher loads but are generally better suited for moderate to low speeds due to slightly higher friction.

  • Applications:

Ball Bearings: Ball bearings are used in applications where smooth motion, low friction, and moderate loads are essential, such as electric fans, bicycles, and some automotive components.

Roller Bearings: Roller bearings find applications in heavy machinery, construction equipment, automotive transmissions, and conveyor systems, where heavier loads and durability are crucial.

In summary, ball bearings and roller bearings differ in their design, friction characteristics, load capacities, speed capabilities, and applications. The choice between them depends on the specific requirements of the machinery and the type of loads and forces involved.

China factory Deep Groove Ball/Ceramic/Rolling/Wheel/Thin Section/Auto Wheelengine/Auto/Square Bore/Needle Roller/Thrust Ball/Roller/ Taper Roller/Forklift Truck Bearing 7210 double row ball bearingChina factory Deep Groove Ball/Ceramic/Rolling/Wheel/Thin Section/Auto Wheelengine/Auto/Square Bore/Needle Roller/Thrust Ball/Roller/ Taper Roller/Forklift Truck Bearing 7210 double row ball bearing
editor by CX 2024-05-16

China factory Active-Power Industries Angular Contact Ball Bearing 7007c China Factory 7319bm Double Row Angular Contact Ball Bearing drive shaft bearing

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Product Description

ACTIVE-POWER INDUSTRIES Angular Contact Ball Bearing 7007C China Factory 7319BM Double Row Angular Contact Ball Bearing

Product Description

The connection line between the steel ball of the contact ball bearing and the contact point of the inner and outer rings forms an angle with the radial direction. Contact angles are generally divided into 15°, 30°, and 40°, which are represented by letters C, A, and B respectively.

Angular contact ball bearings mainly bear large unidirectional axial loads, and the larger the contact angle, the greater the load-bearing capacity. The material of the cage is steel plate, brass, or engineering plastic, and the forming method is stamping or turning, which is selected according to the bearing form or service conditions. Others include combined angular contact ball bearings, double-row angular contact ball bearings, and four-point contact ball bearings.

Angular contact ball bearings can bear radial load and axial load at the same time. Can work at higher speeds. The larger the contact angle, the higher the axial load-carrying capacity. High-precision and high-speed bearings usually take a contact angle of 15 degrees. Under the action of axial force, the contact angle will increase. Single-row angular contact ball bearings can only bear axial load in 1 direction and will cause additional axial force when bearing radial load. And it can only limit the axial displacement of the shaft or housing in 1 direction. If it is installed in pairs, make the outer rings of a pair of bearings face each other, that is, the wide end faces the wide end face, and the narrow end faces the narrow end face. This avoids causing additional axial forces and limits the shaft or housing to axial play in both directions.

Because the raceway of the inner and outer rings of the angular contact ball bearing can have relative displacement on the horizontal axis, it can bear radial load and axial load at the same time – combined load (single row angular contact ball bearing can only bear axial load in 1 direction, Therefore, they are generally installed in pairs). The material of the cage includes brass, synthetic resin, etc., which are distinguished according to the bearing type and service conditions.

Product Parameters

Product Name Angular Contact Ball Bearing
Type Angular Contact Ball Bearing
Structure Angular Contact
Applicable Industries The machinery manufacturing plant, machine tools, mechanical equipment, motor automobile hub, agricultural machinery
Brand Name RPZ /LONK/XWFD/ XWFD ZMW
Accuracy class P0, P6, P5, P4, P2 or as required20mm-500mm
Seal type Open / 2RS
Size 20mm-500mm
Number of Rows Single row
Origin ZheJiang , China
Product Model 7000cac 7200c 7001acm
Material Gcr15 chrome steel / stainless steel bearing
Features long life, low friction, high speed
Retainer Type Brass / bakelite / steel

Angular Contact Bearing
7000AC 7200AC 7303AC 7406AC 3304-2RS/ZZ
7001AC 7201AC 7304AC 7407ACP6 3305-2RS/ZZ
7002AC 7202AC 7305AC 7408AC 3306-2RS/ZZ
7003AC 7203AC 7306AC 7409AC 3307-2RS/ZZ
7004AC 7204AC 7307AC 7410AC 3308-2RS/ZZ
7005AC 7205AC 7308AC 7412ACM 3309-2RS/ZZ
7006AC 7206AC 7309AC 7412BM 3310-2RS/ZZ
7007AC 7207AC 7310AC 7414ACM 3311-2RS/ZZ
7008AC 7208AC 7311AC 7414BM 3312-2RS/ZZ
7009AC 7209AC 7312AC 7416ACM 3313-2RS/ZZ
7571AC 7210C 7313AC 7416BM 3314-2RS/ZZ
7011AC 7210AC 7314AC 7418ACM 3315-2RS/ZZ
7012AC 7211AC 7315AC 7418BM 3316-2RS/ZZ
7013AC 7212AC 7315BM   3317-2RS/ZZ
7014AC 7213AC 7317AC 3204-2RS/ZZ 3318-2RS/ZZ
7015AC 7214AC 7317BM 3205-2RS/ZZ 3319-2RS/ZZ
7016AC 7216AC 7318AC 3206-2RS/ZZ 3320-2RS/ZZ
7017AC 7217AC 7318BTN 3207-2RS/ZZ  
7018AC 7218AC 7319AC 3208-2RS/ZZ QJ210
7571AC 7219AC 7319BM 3209-2RS/ZZ QJ211
7571AC 7220AC 7320AC 3210-2RS/ZZ QJ212
7571AC 7221AC 7320BM 3211-2RS/ZZ QJ213
7026AC 7222AC 7322AC 3212-2RS/ZZ QJ214
7571AC 7224AC 7322BM 3213-2RS/ZZ QJ215
7030AC 7228AC 7324ACM 3214-2RS/ZZ QJ216
7032AC 7232AC 7324BM 3215-2RS/ZZ QJ217
7034AC 7236AC 7326ACM 3216-2RS/ZZ QJ218
7036AC 7240AC 7328ACM 3217-2RS/ZZ QJ219
7038AC 7244AC 7328BM 3218-2RS/ZZ QJ220
    7330ACM 3219-2RS/ZZ QJ222
    7332ACM 3220-2RS/ZZ QJ224
    7334ACM   QJ226
    7336ACM   QJ228
    7338ACM   QJ230
    7340ACM   QJ232

Company Profile

HangZhou Active-Power Industrial. is located in HangZhou, ZheJiang , China. The factory has been committed to the production research and development of bearings for more than 20 years. We support OEM and ODM bearing customization.

The main products are: Deep Groove Ball Bearing Taper Roller Bearing Tapered Roller Bearing Auto Wheel Hub Bearing Cylindrical Roller Bearing Spherical Roller Bearing Motor Bearing Needle Roller Bearing Angular Contact Ball Bearing.

FAQ

Q1:What is your Before-sales Service?
1>. Offer to bear related consultation about technology and application;

2>.Help customers with bearing choice, clearance configuration, product” life, and reliability analysis;

3>. Offer highly cost-effective and complete solution program according to site conditions;

4>. Offer localized program on introduced equipment to save running cost

Q2: What is your After-sales Service?
1>. Offer training about bearing installation and maintenance;

2>.Help customers with trouble diagnosis and failure analysis;

3>. Visit customers regularly and feedback on their rational suggestions and requirements to the company.

Q3: How about your company’s strength?
1>.FREE SAMPLES:
contact us by email or trade manager, we will send the free samples according to your request. 

2>. World-Class Bearing:
We provide our customers with all types of indigenous roller bearings of world-class quality.

3>.OEM or Non-Stand Bearings: 
Any requirement for Non-standard roller bearings is Easily Fulfilled by us due to our vast knowledge and links in the industry. 

4>.Genuine products With Excellent Quality: 
The company has always proved the 100% quality products it provides with genuine intent.

5>. After-Sales Service and Technical Assistance: 
The company provides after-sales service and technical assistance as per the customer’s requirements and needs.

6>.Quick Delivery: 
The company provides just-in-time delivery with its streamlined supply chain.

7>.Cost Saving: 
We provide long-life, shock-resistant, and high-reliability roller bearings with excellent quality and better performance.
Resulting in increased cost savings.

Q4: What will we do if you are not satisfied with the product?
A: If have any abnormal, Please contact us at the first time, and we will immediately process

Q5: How long will you respond to our problems?
A: We will respond within 1 hour. 24 hours to solve your problem

Q6: Is optional lubrication provided?
A: We can offer a wide range of oils and greases for a variety of applications. Please contact our engineer for technical
assistance with any special requirements

  /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Contact Angle: 60°
Aligning: Non-Aligning Bearing
Separated: Separated
Rows Number: Multiple
Load Direction: Thrust Bearing
Material: Stainless Steel
Samples:
US$ 0/Piece
1 Piece(Min.Order)

|
Request Sample

Customization:
Available

|

Customized Request

ball bearing

How does Preload Affect the Performance and Efficiency of Ball Bearings?

Preload is a crucial factor in ball bearing design that significantly impacts the performance, efficiency, and overall behavior of the bearings in various applications. Preload refers to the intentional axial force applied to the bearing’s rolling elements before it is mounted. This force eliminates internal clearance and creates contact between the rolling elements and the raceways. Here’s how preload affects ball bearing performance:

  • Reduction of Internal Clearance:

Applying preload reduces the internal clearance between the rolling elements and the raceways. This eliminates play within the bearing, ensuring that the rolling elements are in constant contact with the raceways. This reduced internal clearance enhances precision and reduces vibrations during operation.

  • Increased Stiffness:

Preloaded bearings are stiffer due to the elimination of internal clearance. This increased stiffness improves the bearing’s ability to handle axial and radial loads with higher accuracy and minimal deflection.

  • Minimized Axial Play:

Preload minimizes or eliminates axial play within the bearing. This is especially important in applications where axial movement needs to be minimized, such as machine tool spindles and precision instruments.

  • Enhanced Rigidity:

The stiffness resulting from preload enhances the bearing’s rigidity, making it less susceptible to deformation under load. This is critical for maintaining precision and accuracy in applications that require minimal deflection.

  • Reduction in Ball Slippage:

Preload reduces the likelihood of ball slippage within the bearing, ensuring consistent contact between the rolling elements and the raceways. This leads to improved efficiency and better load distribution.

  • Improved Running Accuracy:

Preloading enhances the running accuracy of the bearing, ensuring that it maintains precise rotational characteristics even under varying loads and speeds. This is essential for applications requiring high accuracy and repeatability.

  • Optimized Performance at High Speeds:

Preload helps prevent skidding and slipping of the rolling elements during high-speed operation. This ensures that the bearing remains stable, reducing the risk of noise, vibration, and premature wear.

  • Impact on Friction and Heat Generation:

While preload reduces internal clearance and friction, excessive preload can lead to higher friction and increased heat generation. A balance must be struck between optimal preload and minimizing friction-related issues.

  • Application-Specific Considerations:

The appropriate amount of preload depends on the application’s requirements, such as load, speed, accuracy, and operating conditions. Over-preloading can lead to increased stress and premature bearing failure, while under-preloading may result in inadequate rigidity and reduced performance.

Overall, preload plays a critical role in optimizing the performance, accuracy, and efficiency of ball bearings. Engineers must carefully determine the right preload level for their specific applications to achieve the desired performance characteristics and avoid potential issues related to overloading or inadequate rigidity.

ball bearing

How do Miniature Ball Bearings Differ from Standard-sized Ones, and Where are They Commonly Used?

Miniature ball bearings, as the name suggests, are smaller in size compared to standard-sized ball bearings. They have distinct characteristics and are designed to meet the unique requirements of applications that demand compactness, precision, and efficient rotation in confined spaces. Here’s how miniature ball bearings differ from standard-sized ones and where they are commonly used:

  • Size:

The most noticeable difference is their size. Miniature ball bearings typically have outer diameters ranging from a few millimeters to around 30 millimeters, while standard-sized ball bearings have larger dimensions suitable for heavier loads and higher speeds.

  • Load Capacity:

Due to their smaller size, miniature ball bearings have lower load-carrying capacities compared to standard-sized bearings. They are designed for light to moderate loads and are often used in applications where precision and compactness are prioritized over heavy load support.

  • Precision:

Miniature ball bearings are known for their high precision and accuracy. They are manufactured to tighter tolerances, making them suitable for applications requiring precise motion control and low levels of vibration.

  • Speed:

Miniature ball bearings can achieve higher speeds than standard-sized bearings due to their smaller size and lower mass. This makes them ideal for applications involving high-speed rotation.

  • Friction and Efficiency:

Miniature ball bearings generally have lower friction due to their smaller contact area. This contributes to higher efficiency and reduced heat generation in applications that require smooth and efficient motion.

  • Applications:

Miniature ball bearings find applications in various industries and sectors:

  • Electronics and Consumer Devices:

They are used in small motors, computer disk drives, printers, and miniature fans, where space is limited but precise motion is essential.

  • Medical and Dental Equipment:

Miniature bearings are used in medical devices such as surgical instruments, dental handpieces, and diagnostic equipment due to their precision and compactness.

  • Robotics and Automation:

Miniature ball bearings are integral to robotic arms, miniature conveyors, and automation systems, enabling precise movement in confined spaces.

  • Aerospace and Defense:

They are used in applications like UAVs (drones), aerospace actuators, and satellite components where size and weight constraints are critical.

  • Optics and Instrumentation:

Miniature bearings play a role in optical instruments, cameras, and measuring devices, providing smooth rotation and accurate positioning.

Overall, miniature ball bearings are specialized components designed for applications where space, precision, and efficient rotation are paramount. Their compactness and high precision make them crucial in various industries requiring reliable motion control in limited spaces.

ball bearing

What are the Primary Benefits of Using Ball Bearings in Machinery and Equipment?

Ball bearings offer several primary benefits when used in machinery and equipment. Their design and functionality provide advantages that contribute to the efficient and reliable operation of various applications. Here are the key benefits:

  • Reduced Friction:

One of the primary benefits of ball bearings is their ability to minimize friction between moving parts. The rolling motion of the balls reduces the contact area and sliding friction, leading to smoother operation and less energy loss due to frictional heating.

  • Efficient Load Support:

Ball bearings are engineered to support both radial and axial loads, making them versatile for applications with multidirectional forces. This load-bearing capability allows machinery to handle different types of loads while maintaining performance and stability.

  • Smooth Rotation:

Ball bearings enable smooth and precise rotational movement. The rolling motion of the balls provides consistent motion with minimal resistance, ensuring that machinery operates smoothly and without jerks.

  • High-Speed Capability:

Due to their low friction and efficient rolling action, ball bearings are suitable for high-speed applications. They allow machinery and equipment to achieve and maintain high rotational speeds without excessive wear or heat buildup.

  • Reduced Wear and Maintenance:

The reduced friction in ball bearings leads to lower wear on components. This results in longer service intervals and reduced maintenance requirements, saving both time and maintenance costs.

  • Energy Efficiency:

By minimizing friction and reducing energy losses, ball bearings contribute to the overall energy efficiency of machinery. This is particularly important in applications where energy consumption is a concern.

  • Versatility:

Ball bearings come in various types, sizes, and configurations, allowing them to be used in a wide range of machinery and equipment. They can be customized to suit specific application requirements.

  • Reliability and Longevity:

Ball bearings are designed to withstand heavy loads and harsh operating conditions. Their durability and resistance to wear ensure reliable performance and an extended operational life.

  • Quiet Operation:

Ball bearings contribute to quiet machinery operation due to the smooth rolling motion of the balls. This is particularly important in applications where noise reduction is a consideration.

In summary, the primary benefits of using ball bearings in machinery and equipment include reduced friction, efficient load support, smooth rotation, high-speed capability, reduced wear and maintenance, energy efficiency, versatility, reliability, and quiet operation. These benefits collectively enhance the performance and longevity of machinery across various industries.

China factory Active-Power Industries Angular Contact Ball Bearing 7007c China Factory 7319bm Double Row Angular Contact Ball Bearing drive shaft bearingChina factory Active-Power Industries Angular Contact Ball Bearing 7007c China Factory 7319bm Double Row Angular Contact Ball Bearing drive shaft bearing
editor by CX 2024-05-15

China Hot selling Ball Bearing/ Auto Wheel Hub Bearing/Taper Roller Bearing double row ball bearing

Leave a reply

Product Description

Aluminum Die Casting for Metal Radiator Cover/Aluminum cast/gearbox/precision/high-pressure casting/gravity/metal/steel/zinc alloy die-cast

*We bring complete casting solutions to enhance your products and services with the speed and efficiency demanded in today’s marketplace.
*We can produce both aluminum and zinc die castings, and we offer exceptional technical and operational support to help move your business forward.
We deal with a wide range of products which include:
*Auto Parts
*Process Industries
*Auto Meters Castings
*Consumer Electrical Industries
*Textile Industries
*Electronic Industries

Our advantages:
1. High quality materials, professional production, high-precision equipment. Customized design and processing;
2. Strong and durable, strong strength, large torque and good comprehensive mechanical properties;
3. High rotation efficiency, stable and smooth transmission, long service life, noise reduction and shock absorption;
4. Focus on gear processing for 20 years.
5. Carburizing and quenching of tooth surface, strong wear resistance, reliable operation and high bearing capacity;
6. The tooth surface can be ground, and the precision is higher after grinding.

Workshop:

Inspection machine:

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

After-sales Service: Yes
Warranty: One Year
Condition: New
Certification: ISO9001
Customized: Non-Customized
Material: Alloy
Customization:
Available

|

Customized Request

ball bearing

Can you Provide Examples of Industries where Ball Bearings are Crucial Components?

Ball bearings are essential components in a wide range of industries where smooth motion, load support, and precision are vital. Here are some examples of industries where ball bearings play a crucial role:

  • Automotive Industry:

Ball bearings are used in various automotive applications, including wheel hubs, transmissions, engines, steering systems, and suspension components. They provide reliable rotation and support in both passenger vehicles and commercial vehicles.

  • Aerospace Industry:

In the aerospace sector, ball bearings are found in aircraft engines, landing gear systems, control surfaces, and avionics equipment. Their ability to handle high speeds and precision is vital for aviation safety.

  • Industrial Machinery:

Ball bearings are integral to a wide range of industrial machinery, including pumps, compressors, conveyors, machine tools, printing presses, and textile machinery. They facilitate smooth operation and load distribution in these diverse applications.

  • Medical Equipment:

In medical devices and equipment, ball bearings are used in surgical instruments, imaging equipment, dental tools, and laboratory machinery. Their precision and smooth movement are crucial for accurate diagnostics and treatments.

  • Robotics and Automation:

Ball bearings are key components in robotic arms, automation systems, and manufacturing machinery. They enable precise movement, high-speed operation, and reliable performance in automated processes.

  • Renewable Energy:

Wind turbines and solar tracking systems utilize ball bearings to enable efficient rotation and tracking of the wind blades and solar panels. Ball bearings withstand the dynamic loads and environmental conditions in renewable energy applications.

  • Marine and Shipbuilding:

Ball bearings are used in marine applications such as ship propulsion systems, steering mechanisms, and marine pumps. They withstand the corrosive environment and provide reliable performance in maritime operations.

  • Heavy Equipment and Construction:

In construction machinery like excavators, bulldozers, and cranes, ball bearings support the movement of heavy loads and enable efficient operation in demanding environments.

  • Electronics and Consumer Appliances:

Consumer electronics like electric motors, computer hard drives, and household appliances rely on ball bearings for smooth motion and reliable operation.

  • Oil and Gas Industry:

In oil and gas exploration and extraction equipment, ball bearings are used in drilling rigs, pumps, and processing machinery. They handle the high loads and harsh conditions of this industry.

These examples demonstrate how ball bearings are indispensable components in various industries, contributing to the efficiency, reliability, and functionality of diverse mechanical systems and equipment.

ball bearing

How do Miniature Ball Bearings Differ from Standard-sized Ones, and Where are They Commonly Used?

Miniature ball bearings, as the name suggests, are smaller in size compared to standard-sized ball bearings. They have distinct characteristics and are designed to meet the unique requirements of applications that demand compactness, precision, and efficient rotation in confined spaces. Here’s how miniature ball bearings differ from standard-sized ones and where they are commonly used:

  • Size:

The most noticeable difference is their size. Miniature ball bearings typically have outer diameters ranging from a few millimeters to around 30 millimeters, while standard-sized ball bearings have larger dimensions suitable for heavier loads and higher speeds.

  • Load Capacity:

Due to their smaller size, miniature ball bearings have lower load-carrying capacities compared to standard-sized bearings. They are designed for light to moderate loads and are often used in applications where precision and compactness are prioritized over heavy load support.

  • Precision:

Miniature ball bearings are known for their high precision and accuracy. They are manufactured to tighter tolerances, making them suitable for applications requiring precise motion control and low levels of vibration.

  • Speed:

Miniature ball bearings can achieve higher speeds than standard-sized bearings due to their smaller size and lower mass. This makes them ideal for applications involving high-speed rotation.

  • Friction and Efficiency:

Miniature ball bearings generally have lower friction due to their smaller contact area. This contributes to higher efficiency and reduced heat generation in applications that require smooth and efficient motion.

  • Applications:

Miniature ball bearings find applications in various industries and sectors:

  • Electronics and Consumer Devices:

They are used in small motors, computer disk drives, printers, and miniature fans, where space is limited but precise motion is essential.

  • Medical and Dental Equipment:

Miniature bearings are used in medical devices such as surgical instruments, dental handpieces, and diagnostic equipment due to their precision and compactness.

  • Robotics and Automation:

Miniature ball bearings are integral to robotic arms, miniature conveyors, and automation systems, enabling precise movement in confined spaces.

  • Aerospace and Defense:

They are used in applications like UAVs (drones), aerospace actuators, and satellite components where size and weight constraints are critical.

  • Optics and Instrumentation:

Miniature bearings play a role in optical instruments, cameras, and measuring devices, providing smooth rotation and accurate positioning.

Overall, miniature ball bearings are specialized components designed for applications where space, precision, and efficient rotation are paramount. Their compactness and high precision make them crucial in various industries requiring reliable motion control in limited spaces.

ball bearing

What Factors should be Considered when Selecting a Ball Bearing for a Particular Application?

Selecting the right ball bearing for a specific application involves careful consideration of various factors to ensure optimal performance, longevity, and reliability. Here are the key factors that should be taken into account:

  • Load Type and Magnitude:

Determine the type of load (radial, axial, or combined) and the magnitude of the load that the bearing will need to support. Choose a bearing with the appropriate load-carrying capacity to ensure reliable operation.

  • Speed and Operating Conditions:

Consider the rotational speed of the application and the operating conditions, such as temperature, humidity, and exposure to contaminants. Different bearing types and materials are suited for varying speeds and environments.

  • Accuracy and Precision:

For applications requiring high accuracy and precision, such as machine tool spindles or optical instruments, choose high-precision bearings that can maintain tight tolerances and minimize runout.

  • Space Limitations:

If the application has limited space, choose miniature or compact ball bearings that can fit within the available dimensions without compromising performance.

  • Thrust and Radial Loads:

Determine whether the application requires predominantly thrust or radial load support. Choose the appropriate type of ball bearing (thrust, radial, or angular contact) based on the primary load direction.

  • Alignment and Misalignment:

If the application experiences misalignment between the shaft and housing, consider self-aligning ball bearings that can accommodate angular misalignment.

  • Mounting and Installation:

Consider the ease of mounting and dismounting the bearing. Some applications may benefit from features like flanges or snap rings for secure installation.

  • Lubrication and Maintenance:

Choose a bearing with appropriate lubrication options based on the application’s speed and temperature range. Consider whether seals or shields are necessary to protect the bearing from contaminants.

  • Environmental Conditions:

Factor in the operating environment, including exposure to corrosive substances, chemicals, water, or dust. Choose materials and coatings that can withstand the specific environmental challenges.

  • Bearing Material:

Select a bearing material that suits the application’s requirements. Common materials include stainless steel for corrosion resistance and high-carbon chrome steel for general applications.

  • Bearing Arrangement:

Consider whether a single-row, double-row, or multiple bearings in a specific arrangement are needed to accommodate the loads and moments present in the application.

By carefully evaluating these factors, engineers and designers can choose the most suitable ball bearing that aligns with the specific demands of the application, ensuring optimal performance, durability, and overall operational efficiency.

China Hot selling Ball Bearing/ Auto Wheel Hub Bearing/Taper Roller Bearing double row ball bearingChina Hot selling Ball Bearing/ Auto Wheel Hub Bearing/Taper Roller Bearing double row ball bearing
editor by CX 2024-05-15

China Good quality Double Row Angular Contact Ball Bearing 3302 3303 3304 3305 3306 3307 3308 3309 3310 ball bearing

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Product Description

Double row angular contact ball bearing 3310

Angular contact ball bearings are CZPT to support radial load and axial load. As single row angular contact ball bearings can only support axial load in single direction, matched bearing mounting is often adopted to them as matched parts of bearings, preload for them is more convenient.
Retainers are made of brass, synthetic resins or others subject to individual bearing features and application conditions.

 

Theme  angular contact ball bearing 3214 2rs
Own Brand BXY ,SKYN, OEM
Rings Material Chrome steel-GCr15, high Carbon steel-GCR11
Cages Material steel,brass
ID size 10*125*39.7mm
Quality standard ISO9
   
   

 
  
  
  /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Rolling Body: Ball Bearings
The Number of Rows: Double
Outer Dimension: Small and Medium-Sized (60-115mm)
Material: Bearing Steel
Spherical: Aligning Bearings
Load Direction: Axial Bearing
Customization:
Available

|

Customized Request

ball bearing

Can you Provide Examples of Industries where Ball Bearings are Crucial Components?

Ball bearings are essential components in a wide range of industries where smooth motion, load support, and precision are vital. Here are some examples of industries where ball bearings play a crucial role:

  • Automotive Industry:

Ball bearings are used in various automotive applications, including wheel hubs, transmissions, engines, steering systems, and suspension components. They provide reliable rotation and support in both passenger vehicles and commercial vehicles.

  • Aerospace Industry:

In the aerospace sector, ball bearings are found in aircraft engines, landing gear systems, control surfaces, and avionics equipment. Their ability to handle high speeds and precision is vital for aviation safety.

  • Industrial Machinery:

Ball bearings are integral to a wide range of industrial machinery, including pumps, compressors, conveyors, machine tools, printing presses, and textile machinery. They facilitate smooth operation and load distribution in these diverse applications.

  • Medical Equipment:

In medical devices and equipment, ball bearings are used in surgical instruments, imaging equipment, dental tools, and laboratory machinery. Their precision and smooth movement are crucial for accurate diagnostics and treatments.

  • Robotics and Automation:

Ball bearings are key components in robotic arms, automation systems, and manufacturing machinery. They enable precise movement, high-speed operation, and reliable performance in automated processes.

  • Renewable Energy:

Wind turbines and solar tracking systems utilize ball bearings to enable efficient rotation and tracking of the wind blades and solar panels. Ball bearings withstand the dynamic loads and environmental conditions in renewable energy applications.

  • Marine and Shipbuilding:

Ball bearings are used in marine applications such as ship propulsion systems, steering mechanisms, and marine pumps. They withstand the corrosive environment and provide reliable performance in maritime operations.

  • Heavy Equipment and Construction:

In construction machinery like excavators, bulldozers, and cranes, ball bearings support the movement of heavy loads and enable efficient operation in demanding environments.

  • Electronics and Consumer Appliances:

Consumer electronics like electric motors, computer hard drives, and household appliances rely on ball bearings for smooth motion and reliable operation.

  • Oil and Gas Industry:

In oil and gas exploration and extraction equipment, ball bearings are used in drilling rigs, pumps, and processing machinery. They handle the high loads and harsh conditions of this industry.

These examples demonstrate how ball bearings are indispensable components in various industries, contributing to the efficiency, reliability, and functionality of diverse mechanical systems and equipment.

ball bearing

What Precautions should be taken to Prevent Contamination of Ball Bearings in Industrial Settings?

Preventing contamination of ball bearings is essential to ensure their proper function, longevity, and overall performance in industrial settings. Contaminants such as dust, dirt, debris, and particles can significantly impact bearing operation. Here are important precautions to take to prevent contamination of ball bearings:

  • Effective Sealing:

Choose ball bearings with appropriate seals or shields to prevent the ingress of contaminants. Seals provide a physical barrier against dust, moisture, and particles, ensuring the bearing’s interior remains clean.

  • Clean Environment:

Maintain a clean working environment around the machinery and equipment. Regularly clean the surrounding areas to prevent the accumulation of dirt and debris that could enter the bearings.

  • Proper Handling:

Handle bearings with clean hands and use gloves if necessary. Avoid touching the bearing surfaces with bare hands, as natural skin oils can transfer contaminants onto the bearing.

  • Clean Tools and Equipment:

Use clean tools and equipment during installation and maintenance to prevent introducing contaminants. Ensure that tools are properly cleaned before coming into contact with the bearing components.

  • Contamination-Controlled Workstations:

Establish contamination-controlled workstations for bearing handling, installation, and maintenance. These areas should have proper ventilation, filtered air, and minimal exposure to external contaminants.

  • Proper Lubrication:

Use the correct lubricant in appropriate quantities. Lubricants help create a barrier against contaminants and reduce friction. Regularly inspect and replenish lubrication to maintain its effectiveness.

  • Regular Inspections:

Implement a routine inspection schedule to monitor the condition of the bearings. Look for signs of contamination, wear, and damage. Address any issues promptly to prevent further damage.

  • Training and Education:

Train personnel on proper handling, installation, and maintenance practices to minimize the risk of contamination. Educated employees are more likely to take precautions and prevent accidental contamination.

  • Environmental Controls:

In sensitive environments, such as clean rooms or medical facilities, implement strict environmental controls to minimize the presence of contaminants that could affect bearing performance.

  • Regular Cleaning and Maintenance:

Perform regular cleaning and maintenance of machinery and equipment to prevent the buildup of contaminants. Keep bearings protected during maintenance to prevent debris from entering during the process.

  • Selection of Suitable Bearings:

Choose bearings that are specifically designed for the application’s environmental conditions. Some bearings have advanced sealing options or specialized coatings that enhance contamination resistance.

By implementing these precautions, industries can significantly reduce the risk of contamination in ball bearings, ensuring smooth operation, extended bearing life, and enhanced equipment reliability.

ball bearing

What Factors should be Considered when Selecting a Ball Bearing for a Particular Application?

Selecting the right ball bearing for a specific application involves careful consideration of various factors to ensure optimal performance, longevity, and reliability. Here are the key factors that should be taken into account:

  • Load Type and Magnitude:

Determine the type of load (radial, axial, or combined) and the magnitude of the load that the bearing will need to support. Choose a bearing with the appropriate load-carrying capacity to ensure reliable operation.

  • Speed and Operating Conditions:

Consider the rotational speed of the application and the operating conditions, such as temperature, humidity, and exposure to contaminants. Different bearing types and materials are suited for varying speeds and environments.

  • Accuracy and Precision:

For applications requiring high accuracy and precision, such as machine tool spindles or optical instruments, choose high-precision bearings that can maintain tight tolerances and minimize runout.

  • Space Limitations:

If the application has limited space, choose miniature or compact ball bearings that can fit within the available dimensions without compromising performance.

  • Thrust and Radial Loads:

Determine whether the application requires predominantly thrust or radial load support. Choose the appropriate type of ball bearing (thrust, radial, or angular contact) based on the primary load direction.

  • Alignment and Misalignment:

If the application experiences misalignment between the shaft and housing, consider self-aligning ball bearings that can accommodate angular misalignment.

  • Mounting and Installation:

Consider the ease of mounting and dismounting the bearing. Some applications may benefit from features like flanges or snap rings for secure installation.

  • Lubrication and Maintenance:

Choose a bearing with appropriate lubrication options based on the application’s speed and temperature range. Consider whether seals or shields are necessary to protect the bearing from contaminants.

  • Environmental Conditions:

Factor in the operating environment, including exposure to corrosive substances, chemicals, water, or dust. Choose materials and coatings that can withstand the specific environmental challenges.

  • Bearing Material:

Select a bearing material that suits the application’s requirements. Common materials include stainless steel for corrosion resistance and high-carbon chrome steel for general applications.

  • Bearing Arrangement:

Consider whether a single-row, double-row, or multiple bearings in a specific arrangement are needed to accommodate the loads and moments present in the application.

By carefully evaluating these factors, engineers and designers can choose the most suitable ball bearing that aligns with the specific demands of the application, ensuring optimal performance, durability, and overall operational efficiency.

China Good quality Double Row Angular Contact Ball Bearing 3302 3303 3304 3305 3306 3307 3308 3309 3310 ball bearingChina Good quality Double Row Angular Contact Ball Bearing 3302 3303 3304 3305 3306 3307 3308 3309 3310 ball bearing
editor by CX 2024-05-03

China Professional CZPT CZPT CZPT High Speed Resistant Double Seal Single Row Deep Groove Ball Bearing5203 bearing driver kit

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Product Description

ZHangZhoug Shengya Bearing Technology Co., Ltd offers a Chrome Steel High Speed Resistant Tensioner Bearing with ISO9001 certification. Ideal for CZPT car parts and various automotive applications.

Product Parameters

Product Name: double row bearings
Model Number: 5203
Inner Diameter(mm) 17.5
Outer Diameter(mm) 40
Height(mm) 17
Material Chrome steel
Sealed type OPEN,RZ,2RS,4RS
Tolerance P0,P6,P5,P4,P2
Clearance C2,C0,C3,C4,C5
Noize level Z,Z1,Z2,Z3
Application Automotive Car
OEM Service Accept

Product Description

double row bearings:

-The bearings are adopted optimized structure designing so that can attain the traits of high temperature resistant, high speed resistant, long life, high speed rotation,impact resistant,high radial load,etc.

-Sealing structure and seals have the traits of high sealing ability, heat-resistant, abrasiveness and also can prevent the leakage of the grease, as they are helpful for lengthening the bearings’ using life.

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Company Profile

ZHangZhoug Shengya Bearing Technology Co., Ltd was established in 1996, spHangZhou over 10,000 square meters. With assets exceeding 50 million yuan and a workforce of over 80 employees, including 10+ professionals with intermediate and senior titles, we specialize in producing automotive, motorcycle, general machine, precision machine tool, and home appliance bearings. Our annual production capacity reaches 10 million sets of small to medium-sized bearings.

 

We excel in manufacturing various non-standard special-shaped bearings, boasting a wide range of options and meticulous craftsmanship. Situated in HangZhou, HangZhou City, a key industrial, commercial, and tourist hub in ZHangZhoug Province, we benefit from a prime location with easy access to transportation.

FAQ

ZHangZhoug Shengya Bearing Technology Co., Ltd

 

Product Description

 

Welcome to ZHangZhoug Shengya Bearing Technology Co., Ltd! We are a factory + trade company specializing in bearings.

 

Product Features:

 

  • Customizable OEM options available

  • MOQ of 10pcs, with flexibility for lower quantities at a slightly higher cost

  • High-quality bearings made to your specifications

    •  

  •  
  •  

 

Benefits:

 

  • Customized products tailored to your needs

  • Competitive pricing based on quantity purchased

  • Reliable and durable bearings for various applications

    •  

  •  
  •  

 

Contact us today to discuss your bearing requirements and let us provide you with top-notch solutions!

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After-sales Service: One Year Warranty
Warranty: One Year Warranty
Type: Tensioner Bearing
Samples:
US$ 2/Piece
1 Piece(Min.Order)

|

Order Sample
Customization:
Available

|

Customized Request

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Shipping Cost:

Estimated freight per unit.





about shipping cost and estimated delivery time.
Payment Method:







 

Initial Payment



Full Payment
Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

ball bearing

What are the Materials Typically Used in Manufacturing Ball Bearings and Their Advantages?

Ball bearings are manufactured using a variety of materials, each chosen for its specific properties and advantages in various applications. Here are some commonly used materials in ball bearing manufacturing and their respective benefits:

  • High-Carbon Chrome Steel (AISI 52100):

This is the most common material used for ball bearing manufacturing. It offers excellent hardness, wear resistance, and fatigue strength. High-carbon chrome steel bearings are suitable for a wide range of applications, from industrial machinery to automotive components.

  • Stainless Steel (AISI 440C, AISI 304, AISI 316):

Stainless steel bearings are corrosion-resistant and suitable for applications where moisture, chemicals, or exposure to harsh environments are concerns. AISI 440C offers high hardness and corrosion resistance, while AISI 304 and AISI 316 provide good corrosion resistance and are often used in food and medical industries.

  • Ceramic:

Ceramic bearings use silicon nitride (Si3N4) or zirconia (ZrO2) balls. Ceramic materials offer high stiffness, low density, and excellent resistance to corrosion and heat. Ceramic bearings are commonly used in high-speed and high-temperature applications, such as in aerospace and racing industries.

  • Plastic (Polyamide, PEEK):

Plastic bearings are lightweight and offer good corrosion resistance. Polyamide bearings are commonly used due to their low friction and wear properties. Polyether ether ketone (PEEK) bearings provide high-temperature resistance and are suitable for demanding environments.

  • Bronze:

Bronze bearings are often used in applications where self-lubrication is required. Bronze has good thermal conductivity and wear resistance. Bearings made from bronze are commonly used in machinery requiring frequent starts and stops.

  • Hybrid Bearings:

Hybrid bearings combine steel rings with ceramic balls. These bearings offer a balance between the advantages of both materials, such as improved stiffness and reduced weight. Hybrid bearings are used in applications where high speeds and low friction are essential.

  • Specialty Alloys:

For specific applications, specialty alloys may be used to meet unique requirements. For example, bearings used in extreme temperatures or corrosive environments may be made from materials like titanium or hastelloy.

  • Coated Bearings:

Bearings may also be coated with thin layers of materials like diamond-like carbon (DLC) or other coatings to enhance performance, reduce friction, and improve wear resistance.

The choice of material depends on factors such as application requirements, operating conditions, load, speed, and environmental factors. Selecting the right material is essential for ensuring optimal bearing performance, longevity, and reliability in diverse industries and applications.

ball bearing

How do Ceramic Ball Bearings Compare to Traditional Steel Ball Bearings in Terms of Performance?

Ceramic ball bearings and traditional steel ball bearings have distinct characteristics that can impact their performance in various applications. Here’s a comparison of how these two types of bearings differ in terms of performance:

  • Material Composition:

Ceramic Ball Bearings:

Ceramic ball bearings use ceramic rolling elements, typically made from materials like silicon nitride (Si3N4) or zirconium dioxide (ZrO2). These ceramics are known for their high hardness, low density, and resistance to corrosion and wear.

Traditional Steel Ball Bearings:

Traditional steel ball bearings use steel rolling elements. The type of steel used can vary, but common materials include chrome steel (52100) and stainless steel (440C). Steel bearings are known for their durability and strength.

  • Friction and Heat:

Ceramic Ball Bearings:

Ceramic bearings have lower friction coefficients compared to steel bearings. This results in reduced heat generation during operation, contributing to higher efficiency and potential energy savings.

Traditional Steel Ball Bearings:

Steel bearings can generate more heat due to higher friction coefficients. This can lead to increased energy consumption in applications where efficiency is crucial.

  • Weight:

Ceramic Ball Bearings:

Ceramic bearings are lighter than steel bearings due to the lower density of ceramics. This weight reduction can be advantageous in applications where minimizing weight is important.

Traditional Steel Ball Bearings:

Steel bearings are heavier than ceramic bearings due to the higher density of steel. This weight may not be as critical in all applications but could impact overall equipment weight and portability.

  • Corrosion Resistance:

Ceramic Ball Bearings:

Ceramic bearings have excellent corrosion resistance, making them suitable for applications in corrosive environments, such as marine or chemical industries.

Traditional Steel Ball Bearings:

Steel bearings are susceptible to corrosion, especially in harsh environments. Stainless steel variants offer improved corrosion resistance but may still corrode over time.

  • Speed and Precision:

Ceramic Ball Bearings:

Ceramic bearings can operate at higher speeds due to their lower friction and ability to withstand higher temperatures. They are also known for their high precision and low levels of thermal expansion.

Traditional Steel Ball Bearings:

Steel bearings can operate at high speeds as well, but their heat generation may limit performance in certain applications. Precision steel bearings are also available but may have slightly different characteristics compared to ceramics.

  • Cost:

Ceramic Ball Bearings:

Ceramic bearings are generally more expensive to manufacture than steel bearings due to the cost of ceramic materials and the challenges in producing precision ceramic components.

Traditional Steel Ball Bearings:

Steel bearings are often more cost-effective to manufacture, making them a more economical choice for many applications.

In conclusion, ceramic ball bearings and traditional steel ball bearings offer different performance characteristics. Ceramic bearings excel in terms of low friction, heat generation, corrosion resistance, and weight reduction. Steel bearings are durable, cost-effective, and widely used in various applications. The choice between the two depends on the specific requirements of the application, such as speed, precision, corrosion resistance, and budget considerations.

ball bearing

What Factors should be Considered when Selecting a Ball Bearing for a Particular Application?

Selecting the right ball bearing for a specific application involves careful consideration of various factors to ensure optimal performance, longevity, and reliability. Here are the key factors that should be taken into account:

  • Load Type and Magnitude:

Determine the type of load (radial, axial, or combined) and the magnitude of the load that the bearing will need to support. Choose a bearing with the appropriate load-carrying capacity to ensure reliable operation.

  • Speed and Operating Conditions:

Consider the rotational speed of the application and the operating conditions, such as temperature, humidity, and exposure to contaminants. Different bearing types and materials are suited for varying speeds and environments.

  • Accuracy and Precision:

For applications requiring high accuracy and precision, such as machine tool spindles or optical instruments, choose high-precision bearings that can maintain tight tolerances and minimize runout.

  • Space Limitations:

If the application has limited space, choose miniature or compact ball bearings that can fit within the available dimensions without compromising performance.

  • Thrust and Radial Loads:

Determine whether the application requires predominantly thrust or radial load support. Choose the appropriate type of ball bearing (thrust, radial, or angular contact) based on the primary load direction.

  • Alignment and Misalignment:

If the application experiences misalignment between the shaft and housing, consider self-aligning ball bearings that can accommodate angular misalignment.

  • Mounting and Installation:

Consider the ease of mounting and dismounting the bearing. Some applications may benefit from features like flanges or snap rings for secure installation.

  • Lubrication and Maintenance:

Choose a bearing with appropriate lubrication options based on the application’s speed and temperature range. Consider whether seals or shields are necessary to protect the bearing from contaminants.

  • Environmental Conditions:

Factor in the operating environment, including exposure to corrosive substances, chemicals, water, or dust. Choose materials and coatings that can withstand the specific environmental challenges.

  • Bearing Material:

Select a bearing material that suits the application’s requirements. Common materials include stainless steel for corrosion resistance and high-carbon chrome steel for general applications.

  • Bearing Arrangement:

Consider whether a single-row, double-row, or multiple bearings in a specific arrangement are needed to accommodate the loads and moments present in the application.

By carefully evaluating these factors, engineers and designers can choose the most suitable ball bearing that aligns with the specific demands of the application, ensuring optimal performance, durability, and overall operational efficiency.

China Professional CZPT CZPT CZPT High Speed Resistant Double Seal Single Row Deep Groove Ball Bearing5203 bearing driver kitChina Professional CZPT CZPT CZPT High Speed Resistant Double Seal Single Row Deep Groove Ball Bearing5203 bearing driver kit
editor by CX 2024-05-02

China Hot selling Geared Turntable Bearing 011.30.1440 Double Row Ball Swing Bearing 011.30.1734 Slewing Bearing connecting rod bearing

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Product Description

Please see details for  slewing ring bearing
011.30.1440.190.11.1503
011.30.1440.191.41.1503
011.30.1734.000.11.1503
011.30.1734.001.41.1503
if you need more details, please feel free to contact us for designing and producing

1. Why choose CZPT slewing bearings
Who we are?
We (HangZhou CZPT special heavy-duty and large bearing manufacturing CO., LTD) are a professional
bearing manufacturer in the world, established in 2000, specializing in slewing bearings, slewing drives
and special bearings, with design, production, sales, marketing and service from OD200mm to 8000mm.
For 18 years experiences, our bearings have flied to more than 50 countries.

Our technical team:
We have 60 employees, with 6 experienced engineers and professional technicists.
All our bearings are designed by CAD-programs, made according to customers’ special demands.
Our technical team can also verify safety & reliability depending on the load case and the strength of raceway
as well as gear and bolt connections.

Manufacturing:
Equipped with advanced manufacturing equipments and test instruments, all bearings are of uniform marking
and packing with superior quality, reasonable prices and perfect services.

Quality:
We have been certificated by ISO9001:2008, and we are also aligned to international quality standards
from application consulting and engineering to productions, examinations, documentations and dispatch.
We will prepare additional test reports if customers need.

2. Structure of CZPT slewing bearings
Main Types:
Single row ball slewing ring bearings
Double row ball slewing ring bearings
Crossed roller slewing ring bearing
Three row cylindrical roller slewing bearings
BALL & ROLLER combined slewing bearings
Flanged slewing ring bearing
Gear Type:
Slewing bearings with external gear
Slewing bearings with internal gear
Slew bearings without gear
Flange type:
Slewing bearings with external flange and internal gear
Slew rings with internal flange and external gear
Slew bearings with external and internal flange

3. Double-row ball slewing ring bearings
Characteristic of structure, performance and application:
Our factory is a specialized manufacturer in slewing rings/bearings.
The double-row ball slewing ring bearing has 3 seat-rings. The steel balls and the spacers may be directly arranged into the upper and lower races. Two rows of steel balls with different diameters are fitted according to the force.
Such open mode fitting features extraordinary convenience. The load angels of both upper and lower races are 90° which enable the bearing to bear large axial force and the tipping moment. When the radial force is larger than 1/10 of the axial force the races should be newly designed. As the axle and the dimension of the double-row ball slewing bearing are rather large, the bearing construction is solidity; hence it is especially suitable for tower cranes which require working radius over medium range, mobile cranes and loading and unloading machines.

4. About CZPT bearings Advantages:
4.1 introduction:we are a manufacturer of slewing bearing since 1993, our factory occupies a area of 30000square meters with 4 workshop and 1 office building. 
4.2 Featured products: slewing bearing and slewing drive
4.3 Capital: Current is 1 million RMB, but we are increasing the capital to 10 million RMB
4.4 Workers: 60
4.5 Certificate: ISO9001:2008, 3.1 certificate, CCS certificate
All CZPT slew rings can betested by the 3rd party inspection organization if customer requires, such as BV, CCS, SGS, LR, ABS and so on. All swing bearings inspection reports will be supplied to customers, including raw material certificate, heat treatment certificate, UT&PT and so on.
4.6 Annual Exportation: 8 million USD
4.7 Warranty Period: All CZPT slewing ring bearings have a warranty period of 18 months, for some special working condition, warranty period can be lengthened to 3-4 years.
4.8 Production Time: All CZPT slewing ring bearings can be usually delivered timely, usual production time is 15-50 days based on different slew bearings diameters, sometimes slew rings will be in stock.
4.9 Technical Control
All CZPT slewing ring bearings are forged rings with material steel 50Mn or 42CrMo, slewing rings are machined by CNC lathe, slew bearings raceway are quenched via medium-frequency hardening with hardness 55-60HRC, turntable bearings are drilled holes by CNC drilling machine, slew gears are machined by hobbing machine with gear quenched if required, swing bearings then are grinded by grinding machine with higher precision.

5. CZPT Slewing Bearing Packing 
5.1 Basic Packing
Bearing surface is covered with the anti-rust oil first; and then wrapped with the plastic film;
And then packed with kraft paper and professional belts;
At last, with wooden box totally at the outer packing to invoid the rust or the moist;
We can depend on the customers  demand to be packed;

5.2 CZPT slewing ring bearings can be packed by different ways.
If bearing diameter is less than 2300mm, slewing rings will be usually packed by square plywood case.
If bearing diameter is more than 2300mm, slewing rings can be packed by square plywood case, round plywood case, or steel tripod. Every package way can be totally kept goods safely.

6. CZPT Slewing Bearing Transportation:
Slewing bearings can be offered different delivery terms, such as EXW, FOB, CIF, DDU and so on.
Also, slewing rings can be transported by different transport ways, by express (such as DHL, TNT, UPS, FEDEX and so on), by air, by sea, by truck, by railway and so on.

6. Application:
For harbour and shipyard crane, Marine machine, port hoisting machine, port oil transfer equipment, onshore and offshore crane, excavator, concrete machine, paper machine, plastic and rubber machine, weave machine, steel plant, electronic power plant, wind power generator, other construction and industry machines or equipments.

If you need more information about our product, pls feel free to contact us.
We will get back to you ASAP.

Double row ball slewing Bearing with external gear
 

011.20.571.000.11.1504 011.20.571.001.21.1504 011.20.571.000.11.1504
011.20.571.001.21.1504 011.20.1220.000.11.1504 011.20.1220.001.21.1504
011.20.1385.000.11.1504 011.20.1385.001.21.1504 011.25.1200.600.11.1503
011.25.1200.601.21.1503 011.25.1464.000.11.1503 011.25.1461.001.21.1503
011.25.1800.000.00.1503 011.25.1800.001.41.1503 011.30.1440.190.11.1503
011.30.1440.191.41.1503 011.30.1734.000.11.1503 011.30.1734.001.41.1503
011.30.2031.600.11.1503 011.30.2031.601.41.1503 011.30.2235.000.11.1503
011.30.2235.001.41.1503 011.35.1750.700.11.1503 011.35.1750.701.41.1503
011.35.2220.000.11.1503 011.35.2220.001.41.1503 011.35.2620.000.11.1503
011.35.2620.001.41.1503 011.40.2240.000.11.1502 011.40.2240.001.41.1502
011.40.2619.000.11.1502 011.40.2619.001.41.1502 011.40.2795.000.11.1502
011.40.2795.001.41.1502 011.40.2915.000.11.1502 011.40.2915.001.41.1502
011.40.3150.000.11.1502 011.40.3150.001.41.1502 011.50.2987.001.49.1502
011.50.3167.001.49.1502 011.50.3347.001.49.1502 011.50.3567.001.49.1502
011.50.3747.001.49.1502 011.50.4140.001.49.1502  

Double row ball slewing Bearing with internal gear

012.18.0748.000.11.1504 012.18.0748.002.21.1504 012.20.571.000.11.1504
012.20.571.001.21.1504 012.20.1085.000.11.1504 012.20.1085.001.21.1504
012.20.1360.000.11.1504 012.20.1360.001.21.1504 012.25.1360.600.11.1503
012.25.1360.601.21.1503 012.25.1600.000.11.1503 012.25.1600.001.21.1503
012.30.1381.000.11.1503 012.30.1381.001.41.1503 012.30.1630.000.11.1503
012.30.1630.001.41.1503 012.30.1800.000.11.1503 012.30.1800.001.41.1503
012.30.1995.000.11.1503 012.30.1995.001.41.1503 012.30.2330.000.11.1503
012.30.2330.001.41.1503 012.30.2538.000.11.1503 012.30.2538.001.41.1503
012.35.1960.400.11.1503 012.35.1960.401.41.1503 012.35.2500.000.11.1503
012.35.2500.001.41.1503 012.35.2690.000.11.1503 012.35.2690.001.41.1503
012.40.2199.300.11.1502 012.40.2199.301.41.1502 012.40.2622.400.11.1502
012.40.2622.401.41.1502 012.40.2950.000.11.1502 012.40.2950.001.41.1502
012.40.3300.000.11.1502 012.40.3300.001.41.1502 012.45.2940.000.19.1502
012.45.2940.001.48.1502 012.45.3400.100.19.1502 012.45.3400.101.49.1502
012.50.2559.201.49.1502 012.50.3520.001.49.1502 012.50.3739.001.48.1502
012.50.3839.001.49.1502    

  /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Standard or Nonstandard: Standard
Feature: Cold-Resistant, Corrosion-Resistant, Heat-Resistant
Sealing Gland: Sealed On Both Sides
Rolling-Element Number: Double-Row
Roller Type: Deep Groove Raceway
Material: Bearing Steel
Samples:
US$ 1150/Piece
1 Piece(Min.Order)

|
Request Sample

Customization:
Available

|

Customized Request

ball bearing

Are there Specific Maintenance Practices to Ensure the Longevity of Ball Bearings?

Maintaining ball bearings is essential to ensure their longevity, reliable performance, and prevent premature failure. Proper maintenance practices can extend the lifespan of ball bearings and the equipment they are used in. Here are specific maintenance practices to consider:

  • Regular Lubrication:

Implement a regular lubrication schedule using the appropriate lubricant for the application. Lubrication reduces friction, prevents wear, and helps dissipate heat. Follow manufacturer guidelines for lubricant type, quantity, and frequency.

  • Clean Environment:

Keep the operating environment clean and free from contaminants. Dust, dirt, and debris can infiltrate bearings and cause damage. Use seals or shields to protect bearings from contaminants, especially in harsh environments.

  • Proper Installation:

Ensure correct installation of bearings using proper tools and techniques. Improper installation can lead to misalignment, uneven load distribution, and premature wear. Follow manufacturer recommendations for installation procedures.

  • Regular Inspections:

Perform routine visual inspections to check for signs of wear, damage, or contamination. Regular inspections can help identify issues early and prevent further damage. Pay attention to noise, vibration, and temperature changes.

  • Temperature Monitoring:

Monitor bearing temperatures during operation using infrared thermometers or sensors. Abnormal temperature increases can indicate inadequate lubrication, misalignment, or other problems.

  • Correct Handling:

Handle bearings with care to prevent damage during storage, transportation, and installation. Avoid dropping or subjecting them to impacts that can affect their internal components.

  • Bearing Removal and Replacement:

Follow proper procedures when removing and replacing bearings. Use appropriate tools and techniques to avoid damage to the bearing or the surrounding components.

  • Alignment Maintenance:

Maintain proper shaft and housing alignment to prevent excessive loads and wear on the bearing. Misalignment can lead to increased stress and premature failure.

  • Training and Education:

Provide training to operators and maintenance personnel on proper bearing maintenance and handling practices. Educated personnel are more likely to identify issues and perform maintenance correctly.

  • Documented Records:

Keep records of maintenance activities, inspections, lubrication schedules, and any issues encountered. This documentation helps track the bearing’s performance over time and informs future maintenance decisions.

By implementing these maintenance practices, you can ensure the longevity of ball bearings, minimize downtime, reduce operational costs, and maintain the reliability of the equipment they are a part of.

ball bearing

How do Ceramic Ball Bearings Compare to Traditional Steel Ball Bearings in Terms of Performance?

Ceramic ball bearings and traditional steel ball bearings have distinct characteristics that can impact their performance in various applications. Here’s a comparison of how these two types of bearings differ in terms of performance:

  • Material Composition:

Ceramic Ball Bearings:

Ceramic ball bearings use ceramic rolling elements, typically made from materials like silicon nitride (Si3N4) or zirconium dioxide (ZrO2). These ceramics are known for their high hardness, low density, and resistance to corrosion and wear.

Traditional Steel Ball Bearings:

Traditional steel ball bearings use steel rolling elements. The type of steel used can vary, but common materials include chrome steel (52100) and stainless steel (440C). Steel bearings are known for their durability and strength.

  • Friction and Heat:

Ceramic Ball Bearings:

Ceramic bearings have lower friction coefficients compared to steel bearings. This results in reduced heat generation during operation, contributing to higher efficiency and potential energy savings.

Traditional Steel Ball Bearings:

Steel bearings can generate more heat due to higher friction coefficients. This can lead to increased energy consumption in applications where efficiency is crucial.

  • Weight:

Ceramic Ball Bearings:

Ceramic bearings are lighter than steel bearings due to the lower density of ceramics. This weight reduction can be advantageous in applications where minimizing weight is important.

Traditional Steel Ball Bearings:

Steel bearings are heavier than ceramic bearings due to the higher density of steel. This weight may not be as critical in all applications but could impact overall equipment weight and portability.

  • Corrosion Resistance:

Ceramic Ball Bearings:

Ceramic bearings have excellent corrosion resistance, making them suitable for applications in corrosive environments, such as marine or chemical industries.

Traditional Steel Ball Bearings:

Steel bearings are susceptible to corrosion, especially in harsh environments. Stainless steel variants offer improved corrosion resistance but may still corrode over time.

  • Speed and Precision:

Ceramic Ball Bearings:

Ceramic bearings can operate at higher speeds due to their lower friction and ability to withstand higher temperatures. They are also known for their high precision and low levels of thermal expansion.

Traditional Steel Ball Bearings:

Steel bearings can operate at high speeds as well, but their heat generation may limit performance in certain applications. Precision steel bearings are also available but may have slightly different characteristics compared to ceramics.

  • Cost:

Ceramic Ball Bearings:

Ceramic bearings are generally more expensive to manufacture than steel bearings due to the cost of ceramic materials and the challenges in producing precision ceramic components.

Traditional Steel Ball Bearings:

Steel bearings are often more cost-effective to manufacture, making them a more economical choice for many applications.

In conclusion, ceramic ball bearings and traditional steel ball bearings offer different performance characteristics. Ceramic bearings excel in terms of low friction, heat generation, corrosion resistance, and weight reduction. Steel bearings are durable, cost-effective, and widely used in various applications. The choice between the two depends on the specific requirements of the application, such as speed, precision, corrosion resistance, and budget considerations.

ball bearing

What are the Primary Benefits of Using Ball Bearings in Machinery and Equipment?

Ball bearings offer several primary benefits when used in machinery and equipment. Their design and functionality provide advantages that contribute to the efficient and reliable operation of various applications. Here are the key benefits:

  • Reduced Friction:

One of the primary benefits of ball bearings is their ability to minimize friction between moving parts. The rolling motion of the balls reduces the contact area and sliding friction, leading to smoother operation and less energy loss due to frictional heating.

  • Efficient Load Support:

Ball bearings are engineered to support both radial and axial loads, making them versatile for applications with multidirectional forces. This load-bearing capability allows machinery to handle different types of loads while maintaining performance and stability.

  • Smooth Rotation:

Ball bearings enable smooth and precise rotational movement. The rolling motion of the balls provides consistent motion with minimal resistance, ensuring that machinery operates smoothly and without jerks.

  • High-Speed Capability:

Due to their low friction and efficient rolling action, ball bearings are suitable for high-speed applications. They allow machinery and equipment to achieve and maintain high rotational speeds without excessive wear or heat buildup.

  • Reduced Wear and Maintenance:

The reduced friction in ball bearings leads to lower wear on components. This results in longer service intervals and reduced maintenance requirements, saving both time and maintenance costs.

  • Energy Efficiency:

By minimizing friction and reducing energy losses, ball bearings contribute to the overall energy efficiency of machinery. This is particularly important in applications where energy consumption is a concern.

  • Versatility:

Ball bearings come in various types, sizes, and configurations, allowing them to be used in a wide range of machinery and equipment. They can be customized to suit specific application requirements.

  • Reliability and Longevity:

Ball bearings are designed to withstand heavy loads and harsh operating conditions. Their durability and resistance to wear ensure reliable performance and an extended operational life.

  • Quiet Operation:

Ball bearings contribute to quiet machinery operation due to the smooth rolling motion of the balls. This is particularly important in applications where noise reduction is a consideration.

In summary, the primary benefits of using ball bearings in machinery and equipment include reduced friction, efficient load support, smooth rotation, high-speed capability, reduced wear and maintenance, energy efficiency, versatility, reliability, and quiet operation. These benefits collectively enhance the performance and longevity of machinery across various industries.

China Hot selling Geared Turntable Bearing 011.30.1440 Double Row Ball Swing Bearing 011.30.1734 Slewing Bearing connecting rod bearingChina Hot selling Geared Turntable Bearing 011.30.1440 Double Row Ball Swing Bearing 011.30.1734 Slewing Bearing connecting rod bearing
editor by CX 2024-04-19

China wholesaler Good Quality Gcr15 Stainless Steel SUS440 30cr13 Q Series Qjf1028m Qj222m Qj316n2m Qjf1024m Four-Point Angular Contact Ball Bearings double row ball bearing

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Product Description

PRODUCT PICTURES

OUR SERVICES

We can provide manufacturing capabilities and services of regular bearings for you, or customized non-standard bearings as you required.

 BEARING:
  — Dimensions
  — Material
  — Tolerance standard

APPEARANCE:
  — Logo (Laser Marking)
  — Package Design

40+ YEARS EXPERIENCE 
CONTINUOUS AND STABLE DELIVERY OF PRODUCTS.
With over 40 years experience of the bearing manufacturing, we know how to make good bearings with less cost consistently and efficiently.

We use advanced CNC turning, grinding, and superfinishing machines to ensure high, stable, and accurate machining.  All of your goods, from the most economical category, to the highest rated category, will always be manufactured precisely to the standards you require.

OWN HEAT TREATMENT 
CONTROALLABLE COST AND QUALITY.

Heat treatment is 1 of the crucial processes to ensure high performance of bearing materials. Compared with other manufacturers, we can produce higher quality bearings at smaller cost, with a more flexible and controllable production schedule, and in a shorter time. 

We have 6 heat treatment production lines.

Bearings are heated uniformly, with small deformation and little/no oxidized decarburization, which can make them have high hardness, high fatigue resistance, good wear resistance, dimensional stability, and excellent mechanical strength.
 

OUTSTXIHU (WEST LAKE) DIS.  QUALITY
LOW NOISE, LOW FRICTION AND LONG LIFE.

All our products are characterized by low noise, low friction and long life.  This is due to our attention to the roundness, waviness and surface roughness of bearing raceway.

Our products fully meets the requirements of national and international standards according to the testing result of roughness, roundness, hardness, vibration noise, vibration velocity.

PACKING
PACKAGING THAT HELPS SELL.

1, Inner package
   Corrosion and Dust Proof PE plastic film  / bag packing + Tube packing, or Wrapping  tape for larger bearings.

2, Corrugated Individual Box
   Our attractive sales-helpful “3-JOYS” package, or as the design of your package.
3, Outer package
  Corrugated carton + Wooden pallet 

MODERN WELL-ORGANIZED WAREHOUSE

  · Constant temperature (20°C) and humidity (RH 52%) warehouse
  · Hundreds of models on hand, short delivery time.
 

HONOR & SYSTEM CERTIFICATES

EXHIBITION

SAMPLES POLICY 

 FREE SAMPLES AND SHIPPING

 We are happy to send you free samples of our bearings for field   testing. All transportation costs will be paid by us.

 Please note: Depending on the model and value of samples,   this policy may not apply!

 Please contact our sales staff for details.

TRANSPORTATION
FASTEST DELIVERY TO CUSTOMERS
CUSTOMERS FEEDBACK

PAYMENT TERMS 
To facilitate your payment, we offer a variety of options! 

    
 

FAQ

1, About the lead time.
 
This depends on several factors, like Is the production schedule tight? Is there a corresponding model in stock, and is there enough of this model in stock? How many pcs of that model would be ordered?
Simply speaking, based on a 20′ GP container load:

If the model your Preferred is Sufficient stock Lead Time
Regular models YES Within 7 days
Regular models NO Within 30 days
Non-regular model NO About 50 days

For accurate estimate, please contact with our sale stuff. Thanks.

2, Minimum order quantity. 
  
Even just ONE piece of bearing is ok for us.

  
3, If you don’t know which model is the right choice…
  
We would like to give you some advise if you like, according to the real situation and demand of your local market. Our purpose is to help you to get proper and right models for your customers, so that you would make a better sales and income finally.

4, Factory Inspection

We surely would welcome you or your representatives to come to our plants or working offices to take a good look and chat with our hardworking CZPT employees. Ask our sales stuff and she/he will arrange that for you.

OPTIONS OF SPECIFICATION AND STHangZhouRD
 

Subject Symbol Description
Sealing & Sealing type Z Metal shield on 1 side.
ZZ Metal shields on both sides.
RS Rubber seal on 1 side.
2RS Rubber seals on both sides.
ZNR Shield on 1 side, snap ring groove in the outer ring, with snap ring on the opposite side of the shield
2ZNR Shield on both sides, snap ring groove in the outer ring, with snap ring
ZNBR Shield on 1 side, snap ring groove in the outer ring, with snap ring on the same side as the shield
Cage Materials J Pressed steel cages
M Solid brass cage
F Solid cage made from steel or iron
Y Pressed brass cages.
T Laminated phenolic cages.
TN Polyamide cages
TH Glass-fiber reinforced phenolic resin cages.
TV Polyamide cage
Cage Designs P Window-type cage
H Claw-type cage
A Cage guided on the bearing outer ring
B Cage-guided on the bearing inner ring
S Cage with lubricating slots in the guiding surfaces
D Carbonitriding cage
W Welded cage
R Riveted Cage
Cage Types N/A Claw-type cage
Ribbon cage
Crown cage
Sunflower cage
Tapered cage
Tolerances PN(P0) Bearings in standard tolerance
P6 Tighter tolerance than standard bearings
P5 Tolerance tighter than P6
P4 Tolerance tighter than P5
P2 Tolerance tighter than P4
Contact Angle C Contact angle 15˚.
AC Contact angle 25˚.
CA Contact angle 20˚.
E Contact angle 35˚.
B Contact angle 40˚.
Bearing Sets DB Two bearings: back-to-back.
DF Two bearings: face-to-face.
DT Two bearings: in tandem.
TBT Three bearings: tandem and back-to-back.
TFT Three bearings: tandem and face-to-face.
QFC Four bearings: tandem and face-to-face.
DB Two bearings: back-to-back.
DF Two bearings: face-to-face.

PRODUCT PARAMETERS

This tech sheet may not contain all or every piece of information you want to know. Please contact our sales staff to obtain or compare the information.

 

Designation Boundary Dimension (mm) Limiting Speed (rpm) Load Rating (Kn) Weight
 Designation Inner Diameter
(d)		 Outside Diameter
 (D)		 Width
(B)		 Grease Lubrication Oil Lubrication Dynamic Load
(cr)		 Static Load
(cor)		 Weight
(kg)
QJ1571 110 170 28 2400 3000 132 172 2.6
QJ222 110 200 38 2200 2800 255 245 5.5
QJ322 110 240 50 1800 2300 267 334 12.5
QJ1571 120 180 28 2200 2800 108 145 2.6
QJ224 120 215 40 1900 2400 210 260 6.9
QJ324 120 260 55 1600 2200 352 392 15.3
QJ1026 130 200 33 1900 2400 135 185 4
QJ1571 140 210 33 1750 2250 138 195 4.2
QJ328 140 300 62 1250 1650 340 480 22.7
QJ1030X1 150 224.5 35 1600 2100 175 245 5.1
QJ1030 150 225 35 1600 2100 175 245 5.1
QJ230 150 270 45 1350 1750 258 369 11.8
QJ330 150 320 65 1150 1450 365 533 27
QJ1032 160 240 38 1450 1850 181 264 6.3
QJ232 160 290 48 1200 1550 282 414 14.6
QJ1034 170 260 42 1300 1600 226 333 8.5
QJ234 170 310 52 1100 1400 310 480 18.2
QJ334 170 360 72 1300 1200 410 670 41.7
QJ3936X1 180 259.5 52 1300 1600 206 310 9.5
QJ2936X1 180 260 42 1300 1600 206 310 7.7
QJ1036 180 280 46 1200 1500 231 359 11
QJ236 180 320 52 1050 1300 334 530 19
QJ3938X3 190 269.5 55 1200 1500 216 340 10.5
QJ1038 190 290 46 1100 1400 236 378 11.5
QJ2940X2 200 280 51 1100 1400 216 340 10.2
QJ3940X3 200 289.5 58 1100 1400 235 384 13.2
QJ1040X1 200 309.5 42 1100 1400 294 473 15.4
QJ1040 200 310 51 1000 1260 280 455 14.9
QJ240 200 360 58 800 1100 390 656 27
QJ3944 220 300 60 950 1250 221 364 13
QJ3944X1 220 309.5 60 900 1200 246 412 14.8
QJ1044 220 340 56 800 1100 300 503 19.6
QJ3948X1 240 329.5 60 800 1100 256 444 16
QJ1048 240 360 56 800 1100 335 611 21
QJ1048X1-1 240 359.5 56 800 1100 335 611 21
QJ2952X1 240 369.5 60 900 1200 313 585 22
QJ1052 260 400 65 800 1100 320 793 31.3
QJ1060 300 460 74 750 1000 512 985 47
QJ1064X1 300 440 65         31
QJ1068 340 520 82 600 800 583 1330 66

QJF1571 110 170 28 2400 3000 132 172 2.6
QJF322 110 240 50 1800 2300 267 334 12.5
QJF1571 120 180 28 2200 2800 108 145 2.6
QJF224 120 215 40 1900 2400 210 260 6.9
QJF1026 130 200 33 1900 2400 135 185 4
QJF226 130 230 40 1900 2400 245 278 7.5
QJF326 130 280 58 1400 1800 310 420 18.6
QJF1571X1 140 209.5 33 1750 2250 138 195 4.2
QJF1571 140 210 33 1750 2250 138 195 4.2
QJF1571X2 140 210 35 1750 2250 138 195 4.5
QJF1030X1 150 224.5 35 1600 2100 175 245 5.1
QJF1030 150 225 35 1600 2100 175 245 5.1
QJF230 150 270 45 1350 1750 258 369 11.8
QJF330 150 320 65 1150 1450 365 533 27
QJF1032X1 160 239.5 38 1450 1850 181 264 6.3
QJF1032 160 240 38 1450 1850 181 264 6.3
QJF232 160 290 48 1200 1550 282 414 14.6
QJF1034X1 170 259.5 42 1300 1600 226 333 8.5
QJF1034 170 260 42 1300 1600 226 333 8.5
QJF234 170 310 52 1000 1400 310 480 18.2
QJF3936X1 180 259.5 52 1300 1600 206 310 9.5
QJF2936X1 180 260 42 1300 1600 206 310 8
QJF1036 180 280 46 1200 1500 231 359 11
QJF236 180 320 52 1050 1300 334 530 19
QJF3938X3 190 269.5 55 1200 1500 216 340 10.5
QJF1038X1 190 289.5 46 1100 1400 236 378 11.5
QJF1038 190 290 46 1100 1200 236 378 11.5
QJF238 190 340 55 900 1400 347 569 39
QJF2940X2 200 280 51 1100 1400 216 340 10.2
QJF3940X3 200 289.5 58 1100 1400 235 384 13.2
QJF1040 200 310 51 1000 1260 280 455 14.9
QJF240 200 360 58 800 1100 390 656 27
QJF3944X1 220 309.5 60 900 1200 246 412 14.8
QJF1044 220 340 56 800 1100 300 503 19.6
QJF3948X1 240 329.5 60 800 1100 256 444 16
QJF3948X1-1 240 340 60 800 1100 271 477 17.6
QJF1048 240 360 56 800 1100 335 611 21
QJF2952X3 260 359.5 65 900 1200 281 513 21
QJF2952X1 260 369.5 60 900 1200 313 585 22
QJF2952X1-1 260 374.5 60 900 1200 313 585 23
QJF1052 260 400 65 800 1100 320 793 31.3
QJF2956X3 280 375 65 800 1100 250 536 21
QJF2956X3-1 280 389.5 65 800 1100 325 628 25
QJF1056 280 420 65 750 1000 406 802 33.2
QJF2960X2 300 420 65 750 1000 370 755 29.3
QJF1060 300 460 74 750 1000 512 985 47
QJF1064X1 320 440 65         31
QJF1064 320 480 74 650 900 499 1090 49.5
QJF1068X3 340 500 80 600 800 404 705 53.6
QJF1068 340 520 82 600 800 583 1330 66

 

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Contact Angle: 40
Aligning: Aligning Bearing
Separated: Separated
Samples:
US$ 5/Piece
1 Piece(Min.Order)

|

Order Sample
Customization:
Available

|

Customized Request

.shipping-cost-tm .tm-status-off{background: none;padding:0;color: #1470cc}

Shipping Cost:

Estimated freight per unit.





about shipping cost and estimated delivery time.
Payment Method:







 

Initial Payment



Full Payment
Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

ball bearing

Can you Provide Examples of Industries where Ball Bearings are Crucial Components?

Ball bearings are essential components in a wide range of industries where smooth motion, load support, and precision are vital. Here are some examples of industries where ball bearings play a crucial role:

  • Automotive Industry:

Ball bearings are used in various automotive applications, including wheel hubs, transmissions, engines, steering systems, and suspension components. They provide reliable rotation and support in both passenger vehicles and commercial vehicles.

  • Aerospace Industry:

In the aerospace sector, ball bearings are found in aircraft engines, landing gear systems, control surfaces, and avionics equipment. Their ability to handle high speeds and precision is vital for aviation safety.

  • Industrial Machinery:

Ball bearings are integral to a wide range of industrial machinery, including pumps, compressors, conveyors, machine tools, printing presses, and textile machinery. They facilitate smooth operation and load distribution in these diverse applications.

  • Medical Equipment:

In medical devices and equipment, ball bearings are used in surgical instruments, imaging equipment, dental tools, and laboratory machinery. Their precision and smooth movement are crucial for accurate diagnostics and treatments.

  • Robotics and Automation:

Ball bearings are key components in robotic arms, automation systems, and manufacturing machinery. They enable precise movement, high-speed operation, and reliable performance in automated processes.

  • Renewable Energy:

Wind turbines and solar tracking systems utilize ball bearings to enable efficient rotation and tracking of the wind blades and solar panels. Ball bearings withstand the dynamic loads and environmental conditions in renewable energy applications.

  • Marine and Shipbuilding:

Ball bearings are used in marine applications such as ship propulsion systems, steering mechanisms, and marine pumps. They withstand the corrosive environment and provide reliable performance in maritime operations.

  • Heavy Equipment and Construction:

In construction machinery like excavators, bulldozers, and cranes, ball bearings support the movement of heavy loads and enable efficient operation in demanding environments.

  • Electronics and Consumer Appliances:

Consumer electronics like electric motors, computer hard drives, and household appliances rely on ball bearings for smooth motion and reliable operation.

  • Oil and Gas Industry:

In oil and gas exploration and extraction equipment, ball bearings are used in drilling rigs, pumps, and processing machinery. They handle the high loads and harsh conditions of this industry.

These examples demonstrate how ball bearings are indispensable components in various industries, contributing to the efficiency, reliability, and functionality of diverse mechanical systems and equipment.

ball bearing

How do Ceramic Ball Bearings Compare to Traditional Steel Ball Bearings in Terms of Performance?

Ceramic ball bearings and traditional steel ball bearings have distinct characteristics that can impact their performance in various applications. Here’s a comparison of how these two types of bearings differ in terms of performance:

  • Material Composition:

Ceramic Ball Bearings:

Ceramic ball bearings use ceramic rolling elements, typically made from materials like silicon nitride (Si3N4) or zirconium dioxide (ZrO2). These ceramics are known for their high hardness, low density, and resistance to corrosion and wear.

Traditional Steel Ball Bearings:

Traditional steel ball bearings use steel rolling elements. The type of steel used can vary, but common materials include chrome steel (52100) and stainless steel (440C). Steel bearings are known for their durability and strength.

  • Friction and Heat:

Ceramic Ball Bearings:

Ceramic bearings have lower friction coefficients compared to steel bearings. This results in reduced heat generation during operation, contributing to higher efficiency and potential energy savings.

Traditional Steel Ball Bearings:

Steel bearings can generate more heat due to higher friction coefficients. This can lead to increased energy consumption in applications where efficiency is crucial.

  • Weight:

Ceramic Ball Bearings:

Ceramic bearings are lighter than steel bearings due to the lower density of ceramics. This weight reduction can be advantageous in applications where minimizing weight is important.

Traditional Steel Ball Bearings:

Steel bearings are heavier than ceramic bearings due to the higher density of steel. This weight may not be as critical in all applications but could impact overall equipment weight and portability.

  • Corrosion Resistance:

Ceramic Ball Bearings:

Ceramic bearings have excellent corrosion resistance, making them suitable for applications in corrosive environments, such as marine or chemical industries.

Traditional Steel Ball Bearings:

Steel bearings are susceptible to corrosion, especially in harsh environments. Stainless steel variants offer improved corrosion resistance but may still corrode over time.

  • Speed and Precision:

Ceramic Ball Bearings:

Ceramic bearings can operate at higher speeds due to their lower friction and ability to withstand higher temperatures. They are also known for their high precision and low levels of thermal expansion.

Traditional Steel Ball Bearings:

Steel bearings can operate at high speeds as well, but their heat generation may limit performance in certain applications. Precision steel bearings are also available but may have slightly different characteristics compared to ceramics.

  • Cost:

Ceramic Ball Bearings:

Ceramic bearings are generally more expensive to manufacture than steel bearings due to the cost of ceramic materials and the challenges in producing precision ceramic components.

Traditional Steel Ball Bearings:

Steel bearings are often more cost-effective to manufacture, making them a more economical choice for many applications.

In conclusion, ceramic ball bearings and traditional steel ball bearings offer different performance characteristics. Ceramic bearings excel in terms of low friction, heat generation, corrosion resistance, and weight reduction. Steel bearings are durable, cost-effective, and widely used in various applications. The choice between the two depends on the specific requirements of the application, such as speed, precision, corrosion resistance, and budget considerations.

ball bearing

What is a Ball Bearing and How does it Function in Various Applications?

A ball bearing is a type of rolling-element bearing that uses balls to reduce friction between moving parts and support radial and axial loads. It consists of an outer ring, an inner ring, a set of balls, and a cage that separates and maintains a consistent spacing between the balls. Here’s how ball bearings function in various applications:

  • Reduction of Friction:

Ball bearings function by replacing sliding friction with rolling friction. The smooth, spherical balls minimize the contact area between the inner and outer rings, resulting in lower friction and reduced heat generation.

  • Radial and Axial Load Support:

Ball bearings are designed to support both radial loads (forces perpendicular to the shaft’s axis) and axial loads (forces parallel to the shaft’s axis). The distribution of balls within the bearing ensures load-carrying capacity in multiple directions.

  • Smooth Rotational Movement:

Ball bearings facilitate smooth and precise rotational movement. The rolling motion of the balls allows for controlled and continuous rotation with minimal resistance.

  • Applications in Machinery:

Ball bearings are used in a wide range of machinery and equipment, including motors, generators, gearboxes, conveyors, and fans. They enable the efficient transfer of motion while reducing wear and energy losses.

  • Automotive Industry:

Ball bearings are extensively used in automobiles for various applications, including wheel hubs, transmission systems, steering mechanisms, and engine components. They provide reliability and durability in challenging automotive environments.

  • Industrial Machinery:

In industrial settings, ball bearings support rotating shafts and ensure the smooth operation of equipment such as pumps, compressors, and machine tools.

  • High-Speed Applications:

Ball bearings are suitable for high-speed applications due to their low friction and ability to accommodate rapid rotation. They are used in applications like electric motors and aerospace components.

  • Precision Instruments:

For precision instruments, such as watches, cameras, and medical devices, ball bearings provide accurate rotational movement and contribute to the overall performance of the instrument.

  • Variety of Sizes and Types:

Ball bearings come in various sizes, configurations, and materials to suit different applications. Different types include deep groove ball bearings, angular contact ball bearings, thrust ball bearings, and more.

In summary, ball bearings are essential components in a wide range of applications where smooth rotation, load support, and reduced friction are critical. Their versatility, reliability, and efficiency make them indispensable in industries spanning from automotive to industrial machinery to precision instruments.

China wholesaler Good Quality Gcr15 Stainless Steel SUS440 30cr13 Q Series Qjf1028m Qj222m Qj316n2m Qjf1024m Four-Point Angular Contact Ball Bearings double row ball bearingChina wholesaler Good Quality Gcr15 Stainless Steel SUS440 30cr13 Q Series Qjf1028m Qj222m Qj316n2m Qjf1024m Four-Point Angular Contact Ball Bearings double row ball bearing
editor by CX 2024-04-11

China wholesaler Radial Rulman Gcr15 SUS440 95cr18 SUS420 7200 7201 7202 7203 7204 7205 7206 2RS Zz Bm B AC C Precision Single Row / Double Row Angular Contact Ball Bearings. bearing block

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Product Description

PRODUCT PICTURES


  OUR SERVICES

We can provide manufacturing capabilities and services of regular bearings for you, or customized non-standard bearings as you required.

 BEARING:
  — Dimensions
  — Material
  — Tolerance standard

APPEARANCE:
  — Logo (Laser Marking)
  — Package Design

40+ YEARS EXPERIENCE 
CONTINUOUS AND STABLE DELIVERY OF PRODUCTS.

With over 40 years experience of the bearing manufacturing, we know how to make good bearings with less cost consistently and efficiently.

We use advanced CNC turning, grinding, and superfinishing machines to ensure high, stable, and accurate machining.  All of your goods, from the most economical category, to the highest rated category, will always be manufactured precisely to the standards you require.

OWN HEAT TREATMENT 
CONTROALLABLE COST AND QUALITY.

Heat treatment is 1 of the crucial processes to ensure high performance of bearing materials. Compared with other manufacturers, we can produce higher quality bearings at smaller cost, with a more flexible and controllable production schedule, and in a shorter time. 

We have 6 heat treatment production lines.

Bearings are heated uniformly, with small deformation and little/no oxidized decarburization, which can make them have high hardness, high fatigue resistance, good wear resistance, dimensional stability, and excellent mechanical strength.
 

OUTSTXIHU (WEST LAKE) DIS.  QUALITY
LOW NOISE, LOW FRICTION AND LONG LIFE.

All our products are characterized by low noise, low friction and long life.  This is due to our attention to the roundness, waviness and surface roughness of bearing raceway.

Our products fully meets the requirements of national and international standards accoding to the testing result of
roughness, roundness, hardness, vibration noise, vibration velocity.

PACKING
PACKAGING THAT HELPS SELL.

1, Inner package
   Corrosion and Dust Proof PE plastic film  / bag packing + Tube packing, or Wrapping  tape for larger bearings.

2, Corrugated Individual Box
   Our attractive sales-helpful “3-JOYS” package, or as the design of your package.
3, Outer package
  Corrugated carton + Wooden pallet 

MODERN WELL-ORGANIZED WAREHOUSE

  · Constant temperature (20°C) and humidity (RH 52%) warehouse
  · Hundreds of models on hand, short delivery time.
 

HONOR & SYSTEM CERTIFICATES

EXHIBITION

SAMPLES POLICY 

 FREE SAMPLES AND SHIPPING

 We are happy to send you free samples of our bearings for field   testing. All transportation costs will be paid by us.

 Please note: Depending on the model and value of samples,   this policy may not apply!

 Please contact our sales staff for details.

TRANSPORTATION
FASTEST DELIVERY TO CUSTOMERS

CUSTOMERS FEEDBACK

PAYMENT TERMS 
To facilitate your payment, we offer a variety of options! 

    
 

FAQ

1, About the lead time.
 
This depends on several factors, like Is the production schedule tight? Is there a corresponding model in stock, and is there enough of this model in stock? How many pcs of that model would be ordered?
Simply speaking, based on a 20′ GP container load:

If the model your Preferred is Sufficient stock Lead Time
Regular models YES Within 7 days
Regular models NO Within 30 days
Non-regular model NO About 50 days

For accurate estimate, please contact with our sale stuff. Thanks.

2, Minimum order quantity. 
  
Even just ONE piece of bearing is ok for us.

  
3, If you don’t know which model is the right choice…
  
We would like to give you some advise if you like, according to the real situation and demand of your local market. Our purpose is to help you to get proper and right models for your customers, so that you would make a better sales and income finally.

4, Factory Inspection

We surely would welcome you or your representatives to come to our plants or working offices to take a good look and chat with our hardworking CZPT employees. Ask our sales stuff and she/he will arrange that for you.

OPTIONS OF SPECIFICATION AND STHangZhouRD
 

Subject Symbol Description
Sealing & Sealing type Z Metal shield on 1 side.
ZZ Metal shields on both sides.
RS Rubber seal on 1 side.
2RS Rubber seals on both sides.
ZNR Shield on 1 side, snap ring groove in the outer ring, with snap ring on the opposite side of the shield
2ZNR Shield on both sides, snap ring groove in the outer ring, with snap ring
ZNBR Shield on 1 side, snap ring groove in the outer ring, with snap ring on the same side as the shield
Cage Materials J Pressed steel cages
M Solid brass cage
F Solid cage made from steel or iron
Y Pressed brass cages.
T Laminated phenolic cages.
TN Polyamide cages
TH Glass-fiber reinforced phenolic resin cages.
TV Polyamide cage
Cage Designs P Window-type cage
H Claw-type cage
A Cage guided on the bearing outer ring
B Cage-guided on the bearing inner ring
S Cage with lubricating slots in the guiding surfaces
D Carbonitriding cage
W Welded cage
R Riveted Cage
Cage Types N/A Claw-type cage
Ribbon cage
Crown cage
Sunflower cage
Tapered cage
Tolerances PN(P0) Bearings in standard tolerance
P6 Tighter tolerance than standard bearings
P5 Tolerance tighter than P6
P4 Tolerance tighter than P5
P2 Tolerance tighter than P4
Contact Angle C Contact angle 15˚.
AC Contact angle 25˚.
CA Contact angle 20˚.
E Contact angle 35˚.
B Contact angle 40˚.
Bearing Sets DB Two bearings: back-to-back.
DF Two bearings: face-to-face.
DT Two bearings: in tandem.
TBT Three bearings: tandem and back-to-back.
TFT Three bearings: tandem and face-to-face.
QFC Four bearings: tandem and face-to-face.
DB Two bearings: back-to-back.
DF Two bearings: face-to-face.

PRODUCT PARAMETERS

This tech sheet may not contain all or every piece of information you want to know. Please contact our sales staff to obtain or compare the information.
 

Designation Boundary Dimension (mm) Limiting Speed (rpm) Load Rating (Kn) Weight
 Designation Inner Diameter
(d)		 Outside Diameter
(D)		 Width
(B)		 Grease Lubrication Oil Lubrication Dynamic Load
(cr)		 Static Load
(cor)		 Weight
(kg)
7200C 10 30 9 18000 26000 5.81 2.93 0.032
7200AC 10 30 9 18000 26000 5.5 2.85 0.032
7200B 10 30 9 16000 25000 5.3 2.7 0.032
7201C 12 32 10 17000 24000 7.3 3.4 0.039
7201AC 12 32 10 17000 24000 7.09 3.3 0.039
7201B 12 32 10 15000 23000 6.9 3.2 0.039
7202C 15 35 11 16000 22000 8.6 4.5 0.048
7202AC 15 35 11 16000 22000 8.3 4.3 0.048
7202B 15 35 11 15000 21000 7.9 4.2 0.048
7203C 17 40 12 15000 20000 10.8 6.1 0.069
7203AC 17 40 12 15000 20000 10.5 5.6 0.069
7203B 17 40 12 14000 19000 9.9 5.5 0.069
7204C 20 47 14 13000 18000 15.5 8.9 0.110
7204AC 20 47 14 13000 18000 15 8.5 0.110
7204B 20 47 14 12000 16000 13.4 7.6 0.110
7205C 25 52 15 11000 16000 16.5 10 0.130
7205AC 25 52 15 11000 16000 15.8 9.7 0.130
7205B 25 52 15 10000 14000 14.8 9.3 0.130
7206C 30 62 16 9000 13000 23 14.7 0.217
7206AC 30 62 16 9000 13000 22.1 13.5 0.217
7206B 30 62 16 8500 12000 20.5 13.5 0.217
7207C 35 72 17 8000 11000 30.3 20 0.313
7207AC 35 72 17 8000 11000 29.2 18 0.313
7207B 35 72 17 7500 10000 28.3 14.8 0.313
7208C 40 80 18 7500 10000 38.4 26.3 0.402
7208AC 40 80 18 7500 10000 36.8 25.4 0.402
7208B 40 80 18 6700 9000 34.5 23.8 0.402
7209C 45 85 19 6700 9000 40.4 29.3 0.460
7209AC 45 85 19 6700 9000 38.6 28.1 0.460
7209B 45 85 19 6300 8500 34 24.6 0.460
7210C 50 90 20 6300 8500 42.8 31.3 0.510
7210AC 50 90 20 6300 8500 40.8 30.1 0.510
7210B 50 90 20 5600 8000 40.4 25.6 0.510
7211C 55 100 21 5600 7000 53.2 39.9 0.680
7211AC 55 100 21 5600 7000 50.8 38.2 0.680
7211B 55 100 21 5300 7000 46.3 36 0.680
7212C 60 110 22 5300 7000 61 48.2 1.571
7212AC 60 110 22 5300 7000 58.1 46 1.571
7212B 60 110 22 4800 6300 56.1 44.3 1.571
7213C 65 120 23 4800 6300 69.8 54.4 1.090
7213AC 65 120 23 4800 6300 66.6 52.1 1.090
7213B 65 120 23 4300 6000 65.7 50.2 1.090
7214C 70 125 24 4500 5800 72.8 59.7 1.180
7214AC 70 125 24 4500 5800 69.4 57 1.180
7214B 70 125 24 4000 5600 70.4 56.3 1.180
7215C 75 130 25 4300 5600 79.2 65.6 1.320
7215AC 75 130 25 4300 5600 75.3 62.8 1.320
7215B 75 130 25 3800 5300 68.6 58.2 1.320
7216C 80 140 26 4000 5300 92.5 66.2 1.570
7216AC 80 140 26 4000 5300 91.3 65.1 1.570
7216B 80 140 26 4000 5300 78.7 65.7 1.570
7217C 85 150 28 3800 5000 99.7 84.6 2.571
7217AC 85 150 28 3800 5000 94.9 80.8 2.571
7217B 85 150 28 3600 4800 83.2 74.1 2.571
7218C 90 160 30 3600 4800 128 111.7 2.470
7218AC 90 160 30 3600 4800 122 106.5 2.470
7218B 90 160 30 3200 4300 107.6 92.4 2.470
7219C 95 170 32 3400 4500 134.6 112.2 3.571
7219AC 95 170 32 3400 4500 128.4 107.8 3.571
7219B 95 170 32 3000 4000 121.4 106.7 3.571
7220C 100 180 34 3200 4300 148 125 3.620
7220AC 100 180 34 3200 4300 142 120.6 3.620
7220B 100 180 34 2800 3800 140 102.5 3.620
7221C 105 190 36 3000 4000 166.6 138.6 4.290
7221AC 105 190 36 3000 4000 159 135.1 4.290
7221B 105 190 36 2800 3800 143.3 128.5 4.290
7222C 110 200 38 2800 3800 184.7 154.8 5.030
7222AC 110 200 38 2800 3800 176.3 151.2 5.030
7222B 110 200 38 2400 3400 153.8 144.3 5.030
7224C 120 215 40 2400 3400 203.1 178.4 7.080
7224AC 120 215 40 2400 3400 193.6 170.9 7.080
7224B 120 215 40 2200 3200 165.4 161.4 7.080
7226C 130 230 40 2000 3000 206.6 209.2 8.100
7226AC 130 230 40 2000 3000 196.4 200.1 8.100
7226B 130 230 40 1800 2800 170.8 174.2 8.100
7228C 140 250 42 2000 2800 227.2 238.3 9.950
7228AC 140 250 42 2000 2800 216.9 227.4 9.950
7228B 140 250 42 1800 2600 212.2 197.3 9.950
7232AC 160 290 48 1700 2400 250 288 15.49
7234AC 170 310 52 1600 2200 281 341 19.69
7236AC 180 320 52 2200 2700 293 362 20.26
7238AC 190 340 55 2000 2500 303 390 24.31
7240AC 200 360 58 1300 1800 343 449 28.82
7244AC 220 400 65 1100 1600 358 482 33.60
7248AC 240 440 72 1500 1800 403 595 51.8

 

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Contact Angle: 40
Aligning: Aligning Bearing
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ball bearing

Can you Provide Examples of Industries where Ball Bearings are Crucial Components?

Ball bearings are essential components in a wide range of industries where smooth motion, load support, and precision are vital. Here are some examples of industries where ball bearings play a crucial role:

  • Automotive Industry:

Ball bearings are used in various automotive applications, including wheel hubs, transmissions, engines, steering systems, and suspension components. They provide reliable rotation and support in both passenger vehicles and commercial vehicles.

  • Aerospace Industry:

In the aerospace sector, ball bearings are found in aircraft engines, landing gear systems, control surfaces, and avionics equipment. Their ability to handle high speeds and precision is vital for aviation safety.

  • Industrial Machinery:

Ball bearings are integral to a wide range of industrial machinery, including pumps, compressors, conveyors, machine tools, printing presses, and textile machinery. They facilitate smooth operation and load distribution in these diverse applications.

  • Medical Equipment:

In medical devices and equipment, ball bearings are used in surgical instruments, imaging equipment, dental tools, and laboratory machinery. Their precision and smooth movement are crucial for accurate diagnostics and treatments.

  • Robotics and Automation:

Ball bearings are key components in robotic arms, automation systems, and manufacturing machinery. They enable precise movement, high-speed operation, and reliable performance in automated processes.

  • Renewable Energy:

Wind turbines and solar tracking systems utilize ball bearings to enable efficient rotation and tracking of the wind blades and solar panels. Ball bearings withstand the dynamic loads and environmental conditions in renewable energy applications.

  • Marine and Shipbuilding:

Ball bearings are used in marine applications such as ship propulsion systems, steering mechanisms, and marine pumps. They withstand the corrosive environment and provide reliable performance in maritime operations.

  • Heavy Equipment and Construction:

In construction machinery like excavators, bulldozers, and cranes, ball bearings support the movement of heavy loads and enable efficient operation in demanding environments.

  • Electronics and Consumer Appliances:

Consumer electronics like electric motors, computer hard drives, and household appliances rely on ball bearings for smooth motion and reliable operation.

  • Oil and Gas Industry:

In oil and gas exploration and extraction equipment, ball bearings are used in drilling rigs, pumps, and processing machinery. They handle the high loads and harsh conditions of this industry.

These examples demonstrate how ball bearings are indispensable components in various industries, contributing to the efficiency, reliability, and functionality of diverse mechanical systems and equipment.

ball bearing

What Role do Seals and Shields Play in Protecting Ball Bearings from Dirt and Debris?

Seals and shields are critical components of ball bearings that play a crucial role in protecting them from dirt, debris, moisture, and contaminants in various applications. These protective features help maintain the integrity of the bearing’s internal components and ensure reliable operation. Here’s how seals and shields contribute to bearing protection:

  • Contaminant Exclusion:

Seals and shields create a physical barrier between the external environment and the bearing’s interior. They prevent dust, dirt, water, and other contaminants from entering the bearing and coming into contact with the rolling elements and raceways.

  • Lubrication Retention:

Seals and shields help retain lubrication within the bearing. They prevent the lubricant from escaping and contaminants from entering, ensuring that the bearing remains properly lubricated for smooth operation and reduced friction.

  • Corrosion Prevention:

Seals and shields protect bearing components from exposure to moisture and corrosive substances. By preventing moisture ingress, they help extend the bearing’s lifespan by minimizing the risk of corrosion-related damage.

  • Extended Bearing Life:

Seals and shields contribute to the overall longevity of the bearing by reducing wear and damage caused by contaminants. They help maintain a clean internal environment, which promotes proper rolling contact and minimizes the risk of premature failure.

  • Enhanced Performance in Harsh Environments:

In applications exposed to harsh conditions, such as outdoor machinery or industrial settings, seals and shields are vital. They protect bearings from abrasive particles, chemicals, and extreme temperatures, ensuring reliable performance despite challenging conditions.

  • Noise and Vibration Reduction:

Seals and shields can help reduce noise and vibration generated by the bearing. They provide additional damping and stability, contributing to smoother operation and enhanced user comfort in noise-sensitive applications.

  • Customized Protection:

Manufacturers offer a variety of seal and shield designs to suit different application requirements. Some seals provide higher levels of protection against contamination, while others are designed for high-speed or high-temperature environments.

  • Trade-Offs:

While seals and shields offer significant benefits, they can also introduce some friction due to contact with the bearing’s inner or outer ring. Engineers must balance the level of protection with the desired operating characteristics, considering factors like friction, speed, and environmental conditions.

Overall, seals and shields play a vital role in maintaining the integrity and performance of ball bearings. By effectively preventing contaminants from entering and preserving lubrication, they ensure the smooth and reliable operation of machinery and equipment in a wide range of applications.

ball bearing

How do Ball Bearings Differ from Other Types of Bearings like Roller Bearings?

Ball bearings and roller bearings are two common types of rolling-element bearings, each with distinct designs and characteristics. Here’s a comparison of ball bearings and roller bearings:

  • Design:

Ball Bearings: Ball bearings use spherical balls to separate and reduce friction between the bearing’s inner and outer rings. The balls enable rolling motion and smooth contact, minimizing friction.

Roller Bearings: Roller bearings, as the name suggests, use cylindrical or tapered rollers instead of balls. These rollers have larger contact areas, distributing loads over a broader surface.

  • Friction and Efficiency:

Ball Bearings: Due to the point contact between the balls and the rings, ball bearings have lower friction and are more efficient at high speeds.

Roller Bearings: Roller bearings have a larger contact area, resulting in slightly higher friction compared to ball bearings. They are more suitable for heavy-load applications where efficiency is prioritized over high speeds.

  • Load Capacity:

Ball Bearings: Ball bearings excel at handling light to moderate loads in both radial and axial directions. They are commonly used in applications where smooth rotation and low friction are important.

Roller Bearings: Roller bearings have a higher load-carrying capacity than ball bearings. They can support heavier radial and axial loads and are preferred for applications with significant loads or impact forces.

  • Variability:

Ball Bearings: Ball bearings come in various designs, including deep groove, angular contact, and thrust ball bearings, each suitable for different applications.

Roller Bearings: Roller bearings have diverse types, including cylindrical, spherical, tapered, and needle roller bearings, each optimized for specific load and motion requirements.

  • Speed Capability:

Ball Bearings: The reduced friction in ball bearings makes them suitable for high-speed applications, such as electric motors and precision machinery.

Roller Bearings: Roller bearings can handle higher loads but are generally better suited for moderate to low speeds due to slightly higher friction.

  • Applications:

Ball Bearings: Ball bearings are used in applications where smooth motion, low friction, and moderate loads are essential, such as electric fans, bicycles, and some automotive components.

Roller Bearings: Roller bearings find applications in heavy machinery, construction equipment, automotive transmissions, and conveyor systems, where heavier loads and durability are crucial.

In summary, ball bearings and roller bearings differ in their design, friction characteristics, load capacities, speed capabilities, and applications. The choice between them depends on the specific requirements of the machinery and the type of loads and forces involved.

China wholesaler Radial Rulman Gcr15 SUS440 95cr18 SUS420 7200 7201 7202 7203 7204 7205 7206 2RS Zz Bm B AC C Precision Single Row / Double Row Angular Contact Ball Bearings. bearing blockChina wholesaler Radial Rulman Gcr15 SUS440 95cr18 SUS420 7200 7201 7202 7203 7204 7205 7206 2RS Zz Bm B AC C Precision Single Row / Double Row Angular Contact Ball Bearings. bearing block
editor by CX 2024-04-03

China Custom CZPT 1301 Etn9 Self-Aligning Ball Bearings 1301 Etn9 Self Aligning Double Row Bearings bearing example

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Product Description

Product Description

Our Products:

Tapered, cylindrical, ball bearings, self-aligning roller bearings, base bearings, car hub bearings, truck hubs, and other products.
We can customize the bearing according to the drawings or samples provided by the customer.

 

 

Product Parameters

Double Row Self-aligning Ball Bearing
1204 1305 11204 2205
1205 1306 11205 2205K
1206 1307 11206 2206
1207 1307 11207 2206K
1208 1308 11208 2207
1209 1309 11209 2207K
1210 1310 11210 2208
1211 1312 11211 2208K
1212 1313 11212 2209
1213 1314 11214 2209K
1214 1315 11215 2210
1215 1316 11216 2210K
1216 1318 11217 2211
1217 1320 11218 2211K
    11305 2212
    11306 2212K
    11307 2213
    11308 2213K
    11309 22147
    11310 2214K
    11311 2215
    11312 2215K
    11313 2216
    11314 2216K
    11315 2217
    11316 2217K
    11317 2304
    11318 2304K

MAIN PRODUCTS

Tapered roller bearings, cylindrical roller bearings, ball bearings, self-aligning roller bearings, base bearings, car hub bearings,

truck hub bearings and other products, We can customize the bearing according to the drawings or samples provided by the customer

Application

Grain machinery, textile machinery, washing machinery, engineering machinery, industrial deceleration machinery, woodworking

machinery,papermaking machinery, mining machinery, coal mining machinery, lifting machinery, construction machinery,

large transportation equipment,chemical machinery, petroleum machinery, metallurgical industry, large steel mills, cement plants,

energy industry, automobiles, trucks, etc.

Packaging & Shipping

STHangZhouRD PACKAGING:

Plastic bag + single box + carton + tray;
Industrial packaging + carton + pallet;
We also can According to your requirements change.

 

Company Profile

HangZhou CZPT Trading Co., Ltd. was founded in August 2014. It is a bearing manufacturer integrating
research, development, and sale of bearings, with a floor area of 18,000 square meters and a plant area of 4,800
square meters. The company has a state-level enterprise technology center and a number of provincial high-tech
enterprises with strong technical strength. our company was honored as a competitive brand in the market.

Equipped with modern production equipment and advanced detection instruments, the company especially
produces Bearings including 3 varieties of spherical roller bearings, namely cylindrical roller bearings,
tapered roller bearings and thrust spherical roller bearings, Automobile Hub Bearing, to replace imported
high-end products.

With the precision of grade P0, grade P6 P5 P4, we bearings are widely used in complete products in metallurgical, mining, petroleum, chemical, coal, cement, papermaking, wind power, heavy machinery, engineering machinery, and port machinery industries. With self-run import & export rights, we sell our products across China and in tens of other countries and areas such as the United States, Canada, Italy, Russia, Germany, and South Africa.

We would like to serve customers around the world with our reliable products, reasonable prices, and attentive service. The leading products of the company cover 3 main categories which include more than 3,000 types of bearing products.

FAQ

1.What is your Before-sales Service?
Offer to bear related consultation about technology and application;
Help customers with bearing choice, clearance configuration, products’ life and reliability analysis;
Offer highly cost-effective and complete solution program according to site conditions;
Offer localized program on introduced equipment to save running cost

2.What is your latest delivery time?
If the goods are in stock, usually 5-10 days. Or if the goods are not in stock, it is 15-20 days, which is based
on the quantity.

3.Does your company have quality assurance?
Yes, for 2 years.

4.What is the competitiveness of your company’s products compared to other companies?
High precision, high speed, low noise.

5.What are the advantages of your company’s services compared to other companies?
Answer questions online 24 hours a day, reply in a timely manner, and provide various documents required
by customers for customs clearance or sales. 100% after-sales service.

6.Which payment method does your company support?
30% deposit,balance payment before delivery.

7.How to contact us quickly?
Please send us an inquiry or message and leave your other contact information, such as phone number,
account or account, we will contact you as soon as possible.

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

OEM: Available
Rolling Body: Ball Bearings
The Number of Rows: Single
Outer Dimension: Small (28-55mm)
Material: Bearing Steel
Spherical: Non-Aligning Bearings
Samples:
US$ 0/Piece
1 Piece(Min.Order)

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Request Sample

Customization:
Available

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Customized Request

ball bearing

What are the Materials Typically Used in Manufacturing Ball Bearings and Their Advantages?

Ball bearings are manufactured using a variety of materials, each chosen for its specific properties and advantages in various applications. Here are some commonly used materials in ball bearing manufacturing and their respective benefits:

  • High-Carbon Chrome Steel (AISI 52100):

This is the most common material used for ball bearing manufacturing. It offers excellent hardness, wear resistance, and fatigue strength. High-carbon chrome steel bearings are suitable for a wide range of applications, from industrial machinery to automotive components.

  • Stainless Steel (AISI 440C, AISI 304, AISI 316):

Stainless steel bearings are corrosion-resistant and suitable for applications where moisture, chemicals, or exposure to harsh environments are concerns. AISI 440C offers high hardness and corrosion resistance, while AISI 304 and AISI 316 provide good corrosion resistance and are often used in food and medical industries.

  • Ceramic:

Ceramic bearings use silicon nitride (Si3N4) or zirconia (ZrO2) balls. Ceramic materials offer high stiffness, low density, and excellent resistance to corrosion and heat. Ceramic bearings are commonly used in high-speed and high-temperature applications, such as in aerospace and racing industries.

  • Plastic (Polyamide, PEEK):

Plastic bearings are lightweight and offer good corrosion resistance. Polyamide bearings are commonly used due to their low friction and wear properties. Polyether ether ketone (PEEK) bearings provide high-temperature resistance and are suitable for demanding environments.

  • Bronze:

Bronze bearings are often used in applications where self-lubrication is required. Bronze has good thermal conductivity and wear resistance. Bearings made from bronze are commonly used in machinery requiring frequent starts and stops.

  • Hybrid Bearings:

Hybrid bearings combine steel rings with ceramic balls. These bearings offer a balance between the advantages of both materials, such as improved stiffness and reduced weight. Hybrid bearings are used in applications where high speeds and low friction are essential.

  • Specialty Alloys:

For specific applications, specialty alloys may be used to meet unique requirements. For example, bearings used in extreme temperatures or corrosive environments may be made from materials like titanium or hastelloy.

  • Coated Bearings:

Bearings may also be coated with thin layers of materials like diamond-like carbon (DLC) or other coatings to enhance performance, reduce friction, and improve wear resistance.

The choice of material depends on factors such as application requirements, operating conditions, load, speed, and environmental factors. Selecting the right material is essential for ensuring optimal bearing performance, longevity, and reliability in diverse industries and applications.

ball bearing

What Precautions should be taken to Prevent Contamination of Ball Bearings in Industrial Settings?

Preventing contamination of ball bearings is essential to ensure their proper function, longevity, and overall performance in industrial settings. Contaminants such as dust, dirt, debris, and particles can significantly impact bearing operation. Here are important precautions to take to prevent contamination of ball bearings:

  • Effective Sealing:

Choose ball bearings with appropriate seals or shields to prevent the ingress of contaminants. Seals provide a physical barrier against dust, moisture, and particles, ensuring the bearing’s interior remains clean.

  • Clean Environment:

Maintain a clean working environment around the machinery and equipment. Regularly clean the surrounding areas to prevent the accumulation of dirt and debris that could enter the bearings.

  • Proper Handling:

Handle bearings with clean hands and use gloves if necessary. Avoid touching the bearing surfaces with bare hands, as natural skin oils can transfer contaminants onto the bearing.

  • Clean Tools and Equipment:

Use clean tools and equipment during installation and maintenance to prevent introducing contaminants. Ensure that tools are properly cleaned before coming into contact with the bearing components.

  • Contamination-Controlled Workstations:

Establish contamination-controlled workstations for bearing handling, installation, and maintenance. These areas should have proper ventilation, filtered air, and minimal exposure to external contaminants.

  • Proper Lubrication:

Use the correct lubricant in appropriate quantities. Lubricants help create a barrier against contaminants and reduce friction. Regularly inspect and replenish lubrication to maintain its effectiveness.

  • Regular Inspections:

Implement a routine inspection schedule to monitor the condition of the bearings. Look for signs of contamination, wear, and damage. Address any issues promptly to prevent further damage.

  • Training and Education:

Train personnel on proper handling, installation, and maintenance practices to minimize the risk of contamination. Educated employees are more likely to take precautions and prevent accidental contamination.

  • Environmental Controls:

In sensitive environments, such as clean rooms or medical facilities, implement strict environmental controls to minimize the presence of contaminants that could affect bearing performance.

  • Regular Cleaning and Maintenance:

Perform regular cleaning and maintenance of machinery and equipment to prevent the buildup of contaminants. Keep bearings protected during maintenance to prevent debris from entering during the process.

  • Selection of Suitable Bearings:

Choose bearings that are specifically designed for the application’s environmental conditions. Some bearings have advanced sealing options or specialized coatings that enhance contamination resistance.

By implementing these precautions, industries can significantly reduce the risk of contamination in ball bearings, ensuring smooth operation, extended bearing life, and enhanced equipment reliability.

ball bearing

What is a Ball Bearing and How does it Function in Various Applications?

A ball bearing is a type of rolling-element bearing that uses balls to reduce friction between moving parts and support radial and axial loads. It consists of an outer ring, an inner ring, a set of balls, and a cage that separates and maintains a consistent spacing between the balls. Here’s how ball bearings function in various applications:

  • Reduction of Friction:

Ball bearings function by replacing sliding friction with rolling friction. The smooth, spherical balls minimize the contact area between the inner and outer rings, resulting in lower friction and reduced heat generation.

  • Radial and Axial Load Support:

Ball bearings are designed to support both radial loads (forces perpendicular to the shaft’s axis) and axial loads (forces parallel to the shaft’s axis). The distribution of balls within the bearing ensures load-carrying capacity in multiple directions.

  • Smooth Rotational Movement:

Ball bearings facilitate smooth and precise rotational movement. The rolling motion of the balls allows for controlled and continuous rotation with minimal resistance.

  • Applications in Machinery:

Ball bearings are used in a wide range of machinery and equipment, including motors, generators, gearboxes, conveyors, and fans. They enable the efficient transfer of motion while reducing wear and energy losses.

  • Automotive Industry:

Ball bearings are extensively used in automobiles for various applications, including wheel hubs, transmission systems, steering mechanisms, and engine components. They provide reliability and durability in challenging automotive environments.

  • Industrial Machinery:

In industrial settings, ball bearings support rotating shafts and ensure the smooth operation of equipment such as pumps, compressors, and machine tools.

  • High-Speed Applications:

Ball bearings are suitable for high-speed applications due to their low friction and ability to accommodate rapid rotation. They are used in applications like electric motors and aerospace components.

  • Precision Instruments:

For precision instruments, such as watches, cameras, and medical devices, ball bearings provide accurate rotational movement and contribute to the overall performance of the instrument.

  • Variety of Sizes and Types:

Ball bearings come in various sizes, configurations, and materials to suit different applications. Different types include deep groove ball bearings, angular contact ball bearings, thrust ball bearings, and more.

In summary, ball bearings are essential components in a wide range of applications where smooth rotation, load support, and reduced friction are critical. Their versatility, reliability, and efficiency make them indispensable in industries spanning from automotive to industrial machinery to precision instruments.

China Custom CZPT 1301 Etn9 Self-Aligning Ball Bearings 1301 Etn9 Self Aligning Double Row Bearings bearing exampleChina Custom CZPT 1301 Etn9 Self-Aligning Ball Bearings 1301 Etn9 Self Aligning Double Row Bearings bearing example
editor by CX 2024-03-30