China high quality High Quality Csi20037 Thin Section Ball Bearing Csi20037 Angular Contact Ball Bearing Csi20037 Bearing manufacturer

Product Description

Company Profile

STMPB INDUSTRY was established in 2571; We have 2 bearing brand which STMPB INDUSTRY and YUPO were founded in 2571.STMPB INDUSTRY is our international brand which mainly faces overseas market.YUPO is the domestic brand which manily faces China market.

STMPB INDUSTRY bearing headquarters is mainly located in HangZhou, ZheJiang Province, and the main production base is located in HangZhou, ZheJiang Province. The main products of STMPB INDUSTRY bearings are high precision bearings and customized bearings. The main products of STMPB INDUSTRY are precision angular contact ball bearings, ball screw bearings and bearing units, thin-wall equal-section bearings, precision cylindrical roller bearings, YRT bearings, precision cross roller bearings, precision slewing bearings and non-standard customized products.

STMPB INDUSTRY bearing R & D team mainly composed of professors and doctors, the R & D strength is very strong, to provide customers with the best quality production solutions and solutions. STMPB INDUSTRY bearing with precision production equipment, can provide customers with stable P4,P3,P2 grade products.

STMPB INDUSTRY bearings are mainly applied in CNC machine tools, robots, medical machinery, precision instruments, petrochemical and other fields. So far, STMPB INDUSTRY bearings customers throughout South America, Southeast Asia, the Middle East, Europe and other regions, by the world’s customers consistently high praise.


Product Parameters



Boundary dimensions Load rating Weight
d D d2 D2 Cr Cor
in. mm in. mm in. mm in. mm KN kg
CSI04037 4 101.6 4.75 120.65 4.277 108.64 4.473 113.61 10.3 9.3 0.20
CSI04237 4.25 107.95 5 127 4.527 114.99 4.723 119.96 10.5 9.9 0.21
CSI 0571 7 4.5 114.3 5.25 133.35 4.777 121.34 4.973 126.31 10.7 10.4 0.22
CSI5717 4.75 120.65 5.5 139.7 5.571 127.69 5.223 132.66 11.0 10.9 0.23
CSI05037 5 127 5.75 146.05 5.277 134.04 5.473 139.01 11.2 11.5 0.26
CSI5717 5.5 139.7 6.25 158.75 5.777 146.74 5.973 151.71 11.5 12.6 0.27
CSI06037 6 152.4 6.75 171.45 6.277 159.44 6.473 164.41 11.9 13.6 0.29
CSI06537 6.5 165.1 7.25 184.15 6.777 172.14 6.973 177.11 12.2 14.7 0.31
CSI07037 7 177.8 7.75 196.85 7.277 184.84 7.473 189.81 12.5 15.8 0.33
CSI5717 7.5 190.5 8.25 209.55 7.777 197.54 7.973 202.51 12.9 16.8 0.35
CSI08037 8 203.2 8.75 222.25 8.277 210.24 8.473 215.21 13.2 17.9 0.38
CSI 0571 7 9 228.6 9.75 247.65 9.277 235.64 9.473 240.61 13.7 20.0 0.43
CSI10037 10 254 10.75 273.05 10.277 261.04 10.473 266.01 14.2 22.2 0.48
CSI11037 11 279.4 11.75 298.45 11.277 286.44 11.473 291.41 14.7 24.3 0.53
CSI12037 12 304.8 12.75 323.85 12.277 311.84 12.473 316.81 15.2 26.4 0.57
CSI14037 14 355.6 14.75 374.65 14.277 362.64 14.473 367.61 16.0 30.7 0.69
CSI16037 16 406.4 16.75 425.45 16.277 413.44 16.473 418.41 16.8 35.0 0.78
CSI18037 18 457.2 18.75 476.25 18.277 464.24 18.473 469.21 17.6 39.3 0.88
CSI20037 20 508 20.75 527.05 20.277 515.04 20.473 520.01 18.2 43.6 0.98
CSI25037 25 635 25.75 654.05 25.277 642.04 25.473 647.01 19.8 54.2 1.22
CSI30037 30 762 30.75 781.05 30.277 769.04 30.473 774.01 21.1 64.9 1.46

Detailed Photos


Installation Instructions

(1)Inspection of components before installation

Clean the bearing housing or other mounting parts, remove the dirt, and confirm whether the burrs of each

part have been removed.

(2) Install it on the bearing seat or shaft

Because it is a thin-walled bearing, it is easy to tilt during installation. Please use a plastic hammer to find the

level and tap it evenly in the circumferential direction, and install it little by little.

Until you can confirm the contact surface is fully seated by sound.

(3) Installation method of side compression flange

1.  After placing the side compression flange in position,

place it in the circumferential direction.

Shake back a few times to adjust the position of the

mounting bolts.

2.  Install the compression bolt, and make sure that

there is no deviation due to the bolt hole when tightening the

bolt by hand.

The distance causes the bolts to be difficult to screw in.

3.  The tightening of the compression bolt can be

divided into 3-4 parts from temporary tightening to final

tightening stage, repeat the tightening in the order on the

diagonal. When tightening is divided into 2 parts

When tightening the inner or outer ring press bolts, the

integral outer ring is often tightened during the tightening


Or the inner ring can be adjusted and rotated a little to make the outer ring divided into 2 parts or the

deviation of the inner ring is corrected.

Special design: If you need special structure (such as outer ring with mounting holes, inner ring without

holes, etc.), non-standard size, special materials or high precision requirements, etc., please contact.




Technological Support

28 professional mechanical engineers
16 professional bearing analysis engineers
326 professional workers
83 sets of high precision CNC machine tools
32 sets of bearing testing equipment
13,000 square meters factory


After Sales Service

In the sales process, we will have professional sales personnel to answer customers’ questions in time, update the production progress, sort out the photos and videos of packaging and delivery, provide customers with the required documents; We will also invite customers to visit our factory, and we will strive to provide solutions for customers’ needs.

It is not the end after delivery, but a new beginning. We will update the logistics status and arrival date to customers in time.Ask customers for feedback on product quality, packaging, etc. at the first time, so as to improve the next cooperation. We will do our best to deal with any customer’s problems with the product.

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Contact Angle: C=1.0
Aligning: Non-Aligning Bearing
Separated: Separated
Rows Number: Single
Load Direction: Radial Bearing
Material: Bearing Steel
US$ 20/Piece
1 Piece(Min.Order)

Request Sample



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 are the Different Components that Make up a Typical Ball Bearing?

A typical ball bearing consists of several essential components that work together to reduce friction and support loads. Here are the main components that make up a ball bearing:

  • Outer Ring:

The outer ring is the stationary part of the bearing that provides support and houses the other components. It contains raceways (grooves) that guide the balls’ movement.

  • Inner Ring:

The inner ring is the rotating part of the bearing that attaches to the shaft. It also contains raceways that correspond to those on the outer ring, allowing the balls to roll smoothly.

  • Balls:

The spherical balls are the rolling elements that reduce friction between the inner and outer rings. Their smooth rolling motion enables efficient movement and load distribution.

  • Cage or Retainer:

The cage, also known as the retainer, maintains a consistent spacing between the balls. It prevents the balls from touching each other, reducing friction and preventing jamming.

  • Seals and Shields:

Many ball bearings include seals or shields to protect the internal components from contaminants and retain lubrication. Seals provide better protection against contaminants, while shields offer less resistance to rotation.

  • Lubricant:

Lubrication is essential to reduce friction, wear, and heat generation. Bearings are typically filled with lubricants that ensure smooth movement between the balls and raceways.

  • Flanges and Snap Rings:

In some designs, flanges or snap rings are added to help position and secure the bearing in its housing or on the shaft. Flanges prevent axial movement, while snap rings secure the bearing radially.

  • Raceways:

Raceways are the grooved tracks on the inner and outer rings where the balls roll. The shape and design of the raceways influence the bearing’s load-carrying capacity and performance.

  • Anti-Friction Shield:

In certain high-speed applications, a thin anti-friction shield can be placed between the inner and outer rings to minimize friction and heat generation.

These components work together to enable the smooth rolling motion, load support, and reduced friction that characterize ball bearings. The proper design and assembly of these components ensure the bearing’s optimal performance and longevity in various applications.

China high quality High Quality Csi20037 Thin Section Ball Bearing Csi20037 Angular Contact Ball Bearing Csi20037 Bearing   manufacturerChina high quality High Quality Csi20037 Thin Section Ball Bearing Csi20037 Angular Contact Ball Bearing Csi20037 Bearing   manufacturer
editor by CX 2024-05-15

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