Product Description

The thin-walled bearing realizes the extremely thin bearing section, and also realizes the miniaturization and light weight of the product. The variety of products expands its scope of use. In order to obtain the bearing’s low friction torque, high rigidity, and good rotation accuracy, steel balls with a small outer diameter are used. The use of hollow shafts ensures light weight and space for wiring.The series has a variety of dust cover forms, stainless steel forms, and wide forms, etc.
The uniform section thin-walled bearing is composed of 7 open series and 5 sealed series. There are 3 types of open series: radial contact C type, angular contact A type and four-point contact X type. The advantages of thin-walled constant-section bearings: thin-walled bearings achieve extremely thin bearing cross-sections, and achieve product miniaturization and light weight. The variety of products has expanded its scope of use. Stepper motors, medical equipment, office equipment, test equipment, speed reducers, robots, optical imaging equipment, rotary encoders.
   Thin-walled constant-section bearings are also called thin-walled ring bearings, which have high precision, very quiet characteristics and strong load-carrying capacity. The thin-walled bearings with constant cross section can be deep groove ball bearings, four-point contact ball bearings, angular contact ball bearings and thin-walled bearings with the same cross section, and the cross section is mostly square. In these series, even with larger shaft diameters and bearing holes, the cross-section remains the same. Therefore, these bearings are called thin-walled constant-section bearings. It is this characteristic that distinguishes the thin-walled constant-section bearings in the standard ISO series from traditional bearings.
   Therefore, it is possible to select a larger cross section and use a bearing with a higher load carrying capacity without changing the shaft diameter. Thin-walled bearings with constant cross-section can be designed to be very light and require only a small space. 

Sealed deep groove ball thin wall bearing (type C)
8mm Series
Model Size(mm) Radial load(N) Weight Type
d D B Static Dynamic Kg Kaydon
PJ57108C 25 41 8 303 255 0.06 J57108C
PJ05008C 50 66 8 556 350 0.08 J05008C
PJ06008C 60 76 8 656 384 0.09 J06008C
PJ07008C 70 86 8 758 417 0.1 J07008C
PJ08008C 80 96 8 859 448 0.11 J08008C
PJ09008C 90 106 8 959 478 0.13 J09008C
PJ10008C 100 116 8 1061 507 0.14 J10008C
PJ11008C 110 126 8 1162 534 0.15 J11008C
PJ12008C 120 136 8 1262 561 0.16 J12008C
PJ13008C 130 146 8 13801.01 588 0.17 J13008C
PJ14008C 140 156 8 1465 613 0.18 J14008C
PJ15008C 150 166 8 1565 638 0.2 J15008C
PJ16008C 160 176 8 1666 662 0.2 J16008C
PJ17008C 170 186 8 1767 686 0.2 J17008C
13mm Series    
Model Size(mm) Weight Type    
d D B Kg Kaydon    
PJ57113C 25 51 13 0.11 J57113C    
PJ05013C 50 76 13 0.18 J05013C    
PJ06013C 60 86 13 0.21 J06013C    
PJ 0571 3C 70 96 13 0.24 J 0571 3C    
PJ08013C 80 106 13 0.26 J08013C    
PJ 0571 3C 90 116 13 0.29 J 0571 3C    
PJ10013C 100 126 13 0.32 J10013C    
PJ11013C 110 136 13 0.35 J11013C    
PJ12013C 120 146 13 0.38 J12013C    
PJ13013C 130 156 13 0.41 J13013C    
PJ14013C 140 166 13 0.44 J14013C    
PJ15013C 150 176 13 0.46 J15013C    
PJ16013C 160 186 13 0.49 J16013C    
PJ17013C 170 196 13 0.52 J17013C    
PJ18013C 180 206 13 0.55 J18013C    
PJ19013C 190 216 13 0.58 J19013C    
PJ20013C 200 226 13 0.61 J20013C    
PJ25013C 250 276 13 0.75 J25013C    
PJ30013C 300 326 13 0.89 J30013C    
PJ32013C 320 346 13 0.95 J32013C    
PJ34013C 340 366 13 1.01 J34013C    
PJ36013C 360 386 13 1.06 J36013C    
20mm Series    
Model Size(mm) Weight Type    
d D B Kg Kaydon    
PJ57120C 25 65 20 0.34 J57120C    
PJ 0571 1C 50 90 20 0.51 J 0571 1C    
PJ06571C 60 100 20 0.58 J06571C    
PJ5711C 70 110 20 0.65 J5711C    
PJ 0571 1C 80 120 20 0.72 J 0571 1C    
PJ09571C 90 130 20 0.8 J09571C    
PJ1571C 100 140 20 0.86 J1571C    
PJ11571C 110 150 20 0.94 J11571C    
PJ12571C 120 160 20 1.01 J12571C    
PJ13571C 130 170 20 1.08 J13571C    
PJ14571C 140 180 20 1.15 J14571C    
PJ15571C 150 190 20 1.2 J15571C    
PJ16571C 160 200 20 1.3 J16571C    
PJ17571C 170 210 20 1.4 J17571C    
PJ18571C 180 220 20 1.5 J18571C    
PJ19571C 190 230 20 1.5 J19571C    
PJ2571C 200 240 20 1.5 J2571C    
PJ25571C 250 290 20 2.1 J25571C    
PJ3571C 300 340 20 2.3 J3571C    
PJ32571C 320 360 20 2.42 J32571C    
PJ34571C 340 380 20 2.54 J34571C    
PJ36571C 360 400 20 2.7 J36571C    

Our company has an experienced rolling bearing research and development team, modern bearing production, bearing testing equipment and instruments, mature bearing production technology and strong independent research and development capabilities for non-standard, special and special bearings. The company will wholeheartedly provide high-quality bearing products for the equipment manufacturing industry.
The inner diameter size of our bearing products is 3~5000mm, and the structural forms include: deep groove ball bearings, angular contact ball bearings, cylindrical roller bearings, crossed cylindrical roller bearings, tapered roller bearings, thrust ball bearings, thrust roller bearings, Various slewing bearings, one-way rotating bearings, combined bearings and roller bearings, etc.
The company’s products are widely used in: precision machine tools, machining centers, industrial robots, harmonic reducers, precision spindles and turntables, CNC welding machines, automobiles and automobile production lines, electronic and electrical equipment lines, building materials machinery, high-voltage switches, high-speed wire mills, textiles Machinery, petroleum and natural gas industries, ports, mining and hoisting steel wire rope industries; automotive tire radial knitting machines; steel wire rope knitting machines; silicon wafer cutting machines; industrial (automobiles and household appliances) coating lines and other fields.

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.

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Radial Static Load: 1767
Radial Dynamic Load: 686
Weight: 0.49kg
Kaydon Type: J16013c
Aligning: Non-Aligning Bearing
Separated: Unseparated
US$ 780/Piece
1 Piece(Min.Order)

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cross roller bearing

How do cross roller bearings enhance the performance of medical devices like CT scanners?

Cross roller bearings play a crucial role in enhancing the performance of medical devices like CT scanners. These bearings offer specific advantages that contribute to the overall functionality, precision, and reliability of CT scanners. Here are the ways in which cross roller bearings enhance the performance of medical devices like CT scanners:

  • Precision Positioning:
  • CT scanners require precise positioning of various components, such as the gantry, X-ray tube, and detector, to ensure accurate imaging. Cross roller bearings provide exceptional precision in motion control, allowing for precise positioning of these components. The low friction and high stiffness of these bearings enable smooth and accurate movements, ensuring precise alignment and reducing the risk of image distortion or artifacts during scanning.

  • High Rigidity:
  • The high rigidity of cross roller bearings is crucial in CT scanners to maintain stability and minimize vibrations. These bearings can withstand external forces and loads without significant deformation. The high rigidity helps to eliminate unwanted motion or deflection, ensuring stable and consistent operation of the scanner. It also helps to maintain the alignment of critical components, such as the X-ray source and detectors, which is essential for obtaining clear and accurate images.

  • Compact Design:
  • CT scanners often have limited space available, especially in clinical settings where the equipment needs to be compact and easily maneuverable. Cross roller bearings have a compact design that allows for efficient integration into the scanner’s structure. Their thin and lightweight construction minimizes the required installation space, enabling the design of more compact and portable CT scanners without compromising performance or stability.

  • High Load Capacity:
  • CT scanners operate under demanding conditions, including high-speed rotations and heavy loads. Cross roller bearings are specifically designed to provide high load capacity in all directions, including axial, radial, and moment loads. These bearings can support the significant loads exerted by the rotating gantry and other moving components while maintaining their structural integrity. The high load capacity ensures the reliability and longevity of the bearings, reducing the risk of premature failures and downtime.

  • Smooth and Quiet Operation:
  • Cross roller bearings offer smooth and quiet operation, which is advantageous in medical environments where patient comfort is a priority. The low friction characteristics of these bearings minimize noise generation during scanner movements, ensuring a quieter scanning experience for patients. Additionally, the smooth operation contributes to the overall efficiency and accuracy of the CT scanner, as it reduces vibrations that could degrade image quality.

  • Long Service Life:
  • CT scanners are designed for long-term use in medical facilities, and reliability is of utmost importance. Cross roller bearings are known for their durability and long service life. They are designed to withstand repeated use, high-speed rotations, and harsh operating conditions. The robust construction and high-quality materials used in these bearings ensure reliable performance and extended service life, reducing the need for frequent replacements and minimizing downtime for maintenance.

In summary, cross roller bearings enhance the performance of medical devices like CT scanners by providing precision positioning, high rigidity, compact design, high load capacity, smooth and quiet operation, and long service life. These advantages contribute to the accuracy, stability, and reliability of the CT scanner, enabling high-quality imaging and improved patient care. By incorporating cross roller bearings into the design of CT scanners, medical equipment manufacturers can optimize the performance and functionality of these critical diagnostic devices.

cross roller bearing

What role do seals and shields play in protecting cross roller bearings from contaminants?

Seals and shields play a crucial role in protecting cross roller bearings from contaminants. These protective devices are designed to prevent the entry of foreign particles, such as dust, dirt, moisture, and other contaminants, into the bearing system. They offer several functions that contribute to the overall protection and longevity of cross roller bearings:

  • Contamination Prevention:
  • The primary role of seals and shields is to prevent contaminants from entering the bearing. They create a physical barrier that blocks the passage of particles into the internal components of the bearing. This is particularly important in industrial environments where cross roller bearings are exposed to various contaminants that can cause damage and premature wear. By effectively sealing the bearing, seals and shields help maintain a clean and controlled operating environment, ensuring the reliable and optimal performance of the bearing.

  • Retention of Lubrication:
  • Seals and shields help retain the lubricant within the bearing, preventing its leakage and ensuring proper lubrication of the internal components. Lubrication is essential for reducing friction, minimizing wear, and dissipating heat within the bearing. The presence of seals or shields helps to retain the lubricating grease or oil, preventing its loss due to evaporation or contamination. This ensures that the cross roller bearing remains properly lubricated, promoting smooth operation and extending the service life of the bearing.

  • Protection against Moisture:
  • Moisture can be a significant source of contamination and can lead to corrosion and damage to the bearing components. Seals and shields act as a barrier against moisture ingress, preventing water or other liquids from reaching the internal parts of the bearing. By protecting against moisture, seals and shields help maintain the integrity of the bearing, reducing the risk of corrosion and preserving its performance and longevity.

  • Reduction of Friction and Wear:
  • Seals and shields also contribute to reducing friction and wear within the cross roller bearing. They provide an additional layer of protection and help minimize the contact between the rolling elements and the raceways. This reduces the frictional forces and wear on the bearing components, increasing their lifespan and improving overall efficiency. By reducing friction and wear, seals and shields help maintain the precision and performance of the cross roller bearing, ensuring smooth operation and minimizing energy losses.

  • Prevention of Lubricant Contamination:
  • Seals and shields play a vital role in preventing the contamination of the lubricant itself. They act as a barrier against external contaminants, such as dust and dirt, which can mix with the lubricant and degrade its quality. Contaminated lubricant can lead to increased friction, accelerated wear, and decreased performance of the cross roller bearing. The presence of seals and shields helps to maintain the cleanliness and integrity of the lubricant, ensuring its effectiveness in reducing friction and providing proper lubrication to the bearing components.

In summary, seals and shields play a critical role in protecting cross roller bearings from contaminants. They prevent the entry of foreign particles, retain lubrication, protect against moisture, reduce friction and wear, and prevent lubricant contamination. By effectively sealing the bearing and creating a controlled operating environment, seals and shields contribute to the longevity, reliability, and optimal performance of cross roller bearings in various applications and environments.

cross roller bearing

What factors should be considered when selecting a cross roller bearing for a specific application?

When selecting a cross roller bearing for a specific application, several factors need to be carefully considered. These factors ensure that the chosen bearing meets the requirements of the application in terms of performance, reliability, and longevity. Here are the key factors to consider when selecting a cross roller bearing:

  • Load Requirements:
  • First and foremost, the load requirements of the application must be assessed. Consider the magnitude and direction of the loads, including radial, axial, and moment loads. Determine the maximum load capacity needed and ensure that the selected cross roller bearing can handle the anticipated loads without excessive deflection or premature failure.

  • Precision and Accuracy:
  • If the application requires precise positioning or motion control, the level of required precision and accuracy should be evaluated. Cross roller bearings are known for their excellent rotational accuracy, but the specific requirements of the application should be matched with the bearing’s precision level. Consider factors such as the permissible deviation, repeatability, and smoothness of operation.

  • Space Limitations:
  • Assess the available installation space in the application. Cross roller bearings are compact and space-saving, making them suitable for applications with limited space. Measure the dimensions and ensure that the selected bearing can be accommodated without interference or compromising other components.

  • Environmental Conditions:
  • Consider the environmental conditions in which the cross roller bearing will operate. Evaluate factors such as temperature, humidity, dust, chemicals, and potential exposure to contaminants. Choose a bearing that is designed to withstand the specific environmental conditions to ensure optimal performance and longevity.

  • Speed and Acceleration:
  • Assess the required speed and acceleration parameters of the application. Cross roller bearings have speed limitations, and exceeding these limits can lead to increased friction, heat generation, and premature wear. Consider the rotational speed and acceleration requirements and select a bearing that can operate within the desired speed range without compromising performance or reliability.

  • Mounting and Integration:
  • Consider the mounting and integration aspects of the cross roller bearing. Evaluate the mounting method, available space for mounting components, and the overall system design. Ensure that the selected bearing can be easily integrated into the application with appropriate mounting options and compatibility with other system components.

  • Maintenance and Service Life:
  • Assess the maintenance requirements and expected service life of the cross roller bearing. Consider factors such as lubrication needs, accessibility for maintenance, and the desired operating lifespan. Choose a bearing that aligns with the maintenance capabilities and longevity expectations of the application.

  • Cost and Availability:
  • Evaluate the cost-effectiveness and availability of the cross roller bearing. Consider the budget constraints of the application and compare the pricing of different bearing options. Additionally, ensure that the selected bearing is readily available from reliable suppliers to avoid delays or difficulties in sourcing replacements or spare parts.

By carefully considering these factors, it is possible to select the most suitable cross roller bearing for a specific application. Taking into account the load requirements, precision needs, space limitations, environmental conditions, speed and acceleration parameters, mounting considerations, maintenance requirements, and cost-effectiveness ensures that the chosen bearing will deliver optimal performance, reliability, and longevity in the intended application.

China Custom 13mm Series Cross Roller Bearingsealed Deep Groove Ball Equal Section Pj16013c Thin-Walled Bearings (C type)   bearing bronzeChina Custom 13mm Series Cross Roller Bearingsealed Deep Groove Ball Equal Section Pj16013c Thin-Walled Bearings (C type)   bearing bronze
editor by CX 2024-02-19