China high quality CZPT Rubber Industry Ball and Spherical Bearings supplier

Product Description

Jingtong  rubber industry ball and circle bearings 

1.Product  description

Ball bearing basins are on a support plat including a stainless steel plate, a lower bearing plate, ball cap liner, and dust- proof   structure and other components. this series of products compared with the ordinary rubber basin, the products are widely used in curved bridge, straight bridge, skew bridge and city overpass bridge project.

2. Classification:

1) a stainless steel plate, 

2)a  lower bearing plate’

3) ball cap liner 

4)dust-proof structure


3. Feature 

This series of products compared with the ordinary rubber bearing basin, its corner more, rotating flexible, large capacity, the allowable displacement volume and other characteristics, and better CZPT to adapt to the needs of large rotation bearing.

4. Application :

 the products are widely used in

curved bridge,  

straight bridge,

skew bridge

and city overpass bridge project. 



Ball bearing force transmission reliable , consistent performance each rotated, not only with pot rubber bearing load capacity the horizontal displacement of large features, and can meet the needs of a large corner for wide bridge, curved bridge. it is particularly suitable for low- temperature region.

6. Ball bearing main technical performance

1) The support reaction force is divided into 16: 1000KN, 1500KN,2000KN, 3000KN, 4000KN,5000KN, 6000KN, 7000KN, 8000KN, 9000KN, 10000KN, 12500KN, 1500KN, 17500KN and 20000KN. 

2) The bearing angle into 0.02, 0.04,0.06rad. 

3) Stress is about 30 Mpa, values are as follows: 

     Normal temperature (-25ºC~+60ºC) 0.03

    Low temperature(-40ºC~+60ºC) 0.05

4) The carrier can withstand the horizontal force;

     Unidirectional movable  bearing(dx) transverse to the horizontal force of support reaction force of       10%

     Fixed bearing(GD) to withstand the horizontal force of support reaction force of 10%.

Pcckage &Delivery 
1. packed in box and then on pallet
or as customer’s request 
2. we will arrange delivery within 7 days after payment 
the goods are usually deliveried by sea 

HangZhou CZPT Rubber Co., Ltd., is an experienced and professional manufacturer of construction engineering products. It is located in HangZhou City, ZheJiang Province, China.

our company pays much more attention to quality managements and today we are ome of the leading compannies owning customers in many cuontries of the world, such as Malaysia, Kenya, Uganda, USA.

We have 5 workshops, covers an area of 98000 square meters. We have whole sets of production lines. Our team has 20 technicians ,more than 200 workers and 10 sales


Our products have passed ISO and GB inspection, thus, you can shoose our products without any anxiety.In addition, we can also provide the third party reports with more than 3000 projects in domestic. 
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After-sales Service: 5 Year
Warranty: 5 Year
Certification: DIN, JIS, GB, BS, ASTM, AISI
Usage: Beam Bridge, Highway Bridge, Railroad Bridge
Structure: Spherical Steel Bearing
Material: Rubber Bearing
US$ 58/Piece
1 Piece(Min.Order)

Request Sample



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

Are there any Industry Standards or Certifications that Ball Bearings should Meet?

Yes, there are several industry standards and certifications that ball bearings should meet to ensure their quality, performance, and reliability. These standards help manufacturers, engineers, and customers assess the suitability of bearings for specific applications. Some of the key standards and certifications for ball bearings include:

  • ISO Standards:

The International Organization for Standardization (ISO) has developed a series of standards related to ball bearings. ISO 15 defines dimensions, boundary dimensions, and tolerances for radial bearings. ISO 281 specifies dynamic load ratings and calculation methods for bearings’ life calculations.

  • ABEC (Annular Bearing Engineering Committee) Ratings:

ABEC ratings are commonly used in North America to indicate the precision and performance of ball bearings. Ratings range from ABEC 1 (lowest precision) to ABEC 9 (highest precision). However, it’s important to note that ABEC ratings focus primarily on dimensional tolerances and do not encompass all aspects of bearing quality.

  • DIN Standards:

The German Institute for Standardization (Deutsches Institut für Normung, DIN) has published various standards related to ball bearings. DIN 625 covers dimensions for deep groove ball bearings, while DIN 616 provides guidelines for precision angular contact ball bearings.

  • JIS (Japanese Industrial Standards):

JIS standards are used in Japan and internationally to define the characteristics and dimensions of various products, including ball bearings. JIS B 1512 outlines the classification and dimensions of rolling bearings.

  • ASTM (American Society for Testing and Materials) Standards:

ASTM has standards that cover various aspects of bearing testing, performance, and materials. ASTM F2215, for instance, specifies the requirements for ball bearings used in surgical implants.

  • CE Marking:

CE marking indicates that a product complies with European Union health, safety, and environmental requirements. It may be required for bearings used in machinery intended to be sold within the EU market.

  • Industry-Specific Standards:

Various industries, such as aerospace, automotive, medical, and nuclear, have specific standards or certifications that bearings must meet to ensure safety, reliability, and compliance with industry-specific requirements.

  • Quality Management Systems:

Manufacturers that adhere to quality management systems, such as ISO 9001, demonstrate their commitment to consistent product quality and customer satisfaction. Certification to these systems indicates that the manufacturing process follows established protocols and best practices.

When selecting ball bearings, it’s important to consider the relevant standards and certifications that align with the application’s requirements. This ensures that the bearings meet recognized quality and performance criteria, ultimately contributing to reliable and efficient operation.

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 high quality CZPT Rubber Industry Ball and Spherical Bearings   supplierChina high quality CZPT Rubber Industry Ball and Spherical Bearings   supplier
editor by CX 2024-05-16

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