China Best Sales Japan CHINAMFG Needle Bearing Nart6vr Cam Follower Bearings Nart6 Vr 6X19X12 mm

Product Description



Product Description

Bearing Number  Inner diameter/mm Outer diameter/mm Height/mm Weight/g Apply Inner Ring  
NCS1012 MR10N SJ7133 HJ101812 BR101812 15.875(0.625) 28.575(1.125) 19.05(0.75) 49 MI6N  
  MR10 SJ7134 HJ101816 BR101816 15.875(0.625) 28.575(1.125) 25.4(1) 54 MI6  
NCS1212 MR12N SJ7153 HJ122012 BR122012 19.05(0.75) 31.75(1.25) 19.05(0.75) 56 MI8N  
NCS1216 MR12 SJ7154 HJ122016 BR122016 19.05(0.75) 31.75(1.25) 25.4(1) 75 MI8  
NCS1412 MR14N SJ7173 HJ142212 BR142212 22.225(0.875) 34.925(1.375) 19.05(0.75) 63 MI10N  
NCS1416 MR14 SJ7174 HJ142216 BR142216 22.225(0.875) 34.925(1.375) 25.4(1) 84.5 MI10  
NCS1612 MR16N SJ7193 HJ162412 BR162412 25.4(1) 38.1(1.5) 19.05(0.75) 69 MI12N  
NCS1616 MR16 SJ7194 HJ162416 BR162416 25.4(1) 38.1(1.5) 25.4(1) 92.5 MI12  
NCS1816 MR18N SJ7214 HJ182616 BR182616 28.575(1.125) 41.275(1.625) 25.4(1) 102 MI14N  
NCS1820 MR18 SJ7215 HJ182620 BR182620 28.575(1.125) 41.275(1.625) 31.75(1.25) 128 MI14  
NCS2016 MR20N SJ7234 HJ257116 BR257116 31.75(1.25) 44.45(1.75) 25.4(1) 110 MI16N  
NCS2571 MR20 SJ7235 HJ257120 BR257120 31.75(1.25) 44.45(1.75) 31.75(1.25) 138 MI16  
NCS2216 MR22N SJ7254 HJ223016 BR223016 34.925(1.375) 47.625(1.875) 25.4(1) 119 MI18N  
NCS2220 MR22 SJ7255 HJ223571 BR223571 34.925(1.375) 47.625(1.875) 31.75(1.25) 149 MI18  
NCS2416 MR24N SJ7274 HJ243316 BR243316 38.1(1.5) 52.388(2.0625) 25.4(1) 149 MI20N  
NCS2420 MR24 SJ7275 HJ243320 BR243320 38.1(1.5) 52.388(2.0625) 31.75(1.25) 187 MI19/MI20  
NCS2616 MR26N SJ7294 HJ263516 BR263516 41.275(1.625) 55.562(2.1875) 25.4(1) 158 MI21N  
NCS2620 MR26 SJ7295 HJ263520 BR263520 41.275(1.625) 55.562(2.1875) 31.75(1.25) 199 MI21  
NCS2816 MR28N SJ7314 HJ283716 BR283716 44.45(1.75) 58.738(2.3125) 25.4(1) 170 MI24N  
NCS2820 MR28 SJ7315 HJ283720 BR283720 44.45(1.75) 58.738(2.3125) 31.75(1.25) 215 MI24  
NCS3571 MR30 SJ7335 HJ3 0571 0 BR3 0571 0 47.625(1.875) 61.912(2.4375) 31.75(1.25) 225 MI25  
  MR31 SJ7345     49.2125(1.9375) 63.5(2.5) 31.75(1.25) 246 MI26SS  
  MR32N SJ7354 HJ324116 BR324116 50.8(2) 65.088(2.5625) 25.4(1) 190 MI26N  
NCS3220 MR32 SJ7355 HJ324120 BR324120 50.8(2) 65.088(2.5625) 31.75(1.25) 240 MI26/MI27  
NCS3624 MR36N SJ8406 HJ364824 BR364824 57.15(2.25) 76.2(3) 38.1(1.5) 435 MI28N  
  MR36 SJ8407 HJ364828 BR364828 57.15(2.25) 76.2(3) 44.45(1.75) 510 MI28/MI30  
NCS4571 MR40N SJ8446 HJ405224 BR405224 63.5(2.5) 82.55(3.25) 38.1(1.5) 475 MI32N  
  MR40 SJ8447 HJ405228 BR405228 63.5(2.5) 82.55(3.25) 44.45(1.75) 555 MI31/MI32/MI34  
NCS4424 MR44N SJ8476 HJ445624 BR445624 69.85(2.75) 88.9(3.5) 38.1(1.5) 510 MI36N  
  MR44 SJ8477 HJ445628 BR445628 69.85(2.75) 88.9(3.5) 44.45(1.75) 600 MI35/MI36  
NCS4824 MR48N SJ8516 HJ486571 BR486571 76.2(3) 95.25(3.75) 38.1(1.5) 555 MI40N  
  MR48 SJ8517 HJ486571 BR486571 76.2(3) 95.25(3.75) 44.45(1.75) 650 MI38/MI39/MI40  
NCS5228 MR52 SJ9567 HJ526828 BR526828 82.55(3.25) 107.95(4.25) 44.45(1.75) 990 MI44  
  MR56N SJ9607     88.9(3.5) 114.3(4.5) 44.45(1.75) 1120 MI48N  
  MR56 SJ9608 HJ567232 BR567232 88.9(3.5) 114.3(4.5) 50.8(2) 1220 MI46/MI47/MI48  
  MR60 SJ9648 HJ6 0571 2 BR6 0571 2 95.25(3.75) 120.65(4.75) 50.8(2) 1290 MI50/MI52  
  MR64 SJ9688 HJ648032 BR648032 101.6(4) 127(5) 50.8(2) 1370 MI54/MI56  
NCS6832 MR68 SJ9728 HJ688432 BR688432 107.95(4.25) 133.35(5.25) 50.8(2) 1580 MI60  
  MR72 SJ6769 HJ729636   114.3(4.5) 152.4(6) 57.15(2.25) 2540 MI62  
  MR80 SJ6849 HJ801571   127(5) 165.1(6.5) 57.15(2.25) 3040 MI68  
  MR88N SJ6918 HJ8811240   139.7(5.5) 177.8(7) 63.5(2.5) 4400 MI72N  
  MR88 SJ6919 HJ8811248   139.7(5.5) 177.8(7) 76.2(3) 4956 MI72  
  MR96N SJ6925 HJ9612040   152.4(6) 190.5(7.5) 63.5(2.5) 4650 MI80N  
  MR96 SJ6926 HJ9612048   152.4(6) 190.5(7.5) 76.2(3) 5330 MI80  
  MR104N SJ6935 HJ1 0571 840   165.1(6.5) 203.2(8) 63.5(2.5) 4970 MI88N  
  MR104 SJ6936 HJ1 0571 848   165.1(6.5) 203.2(8) 76.2(3) 5700 MI88  
  MR116 SJ2326 HJ11614648   184.1(7.25) 231.775(9.125) 76.2(3) 8110 MI96  
  MR124 SJ2426 HJ12415448   196.85(7.75) 244.475(9.625) 76.2(3) 8310 MI104  
  MR132 SJ2526 HJ13216248   209.55(8.25) 257.175(10.125) 76.2(3) 9080 MI112  
  MR140 SJ2626 HJ14017048   222.25(8.75) 269.875(10.625) 76.2(3) 9550 MI120  

Production Line 


HangZhou Siruibo Bearing Technology Co., Ltd. is a company mainly engaged in manufacturing and selling outer spherical bearings. The registered capital is Five million.

Since its establishment 20 years ago, the company is committed to Mounted Bearing Unit (maintenance-free bearings, engraving machine bearings, holding machine shaft Bearing, no-tillage machine bearing, fan bearing, high temperature bearing, zinc alloy bearing, food grade bearing unit) research and development. With the most complete varieties and best advanced manufacturing technology in production of Mounted Bearing Unit, to be a reliable enterprises, we welcome your cooperation.  Currently, our company produce 10 series of more than 260 varieties of outer spherical bearings and 13 different structural categories of outer spherical bearing special seats, all adopted  International standard design and manufacturing. Registered trademark “FOS” .

Through the efforts and unremitting pursuit of all employees of the company, all products accepted by international standards. Over the years of Expansion and technical transformation, we developed into a Mounted Bearing Unit with large scale of professional manufacturers, for the bearing industry in China, has made a contribution to the development of Bearing.

HangZhou Siruibo Bearing Technology Co., Ltd. has a production capacity of 1 million sets/year, with an annual output value of 30 million yuan. We produce 30 varieties monthly , with 45-60 days lead time.

The company has a perfect material and product quality inspection equipment, according to the strict scientific Quality assurance system,  to prove satisfactory to our customers.  Our products widely used in agricultural Industry machinery, textile machinery and light industry, chemical industry, metallurgy, printing, food, transportation, coal, packaging and other industries and the introduction of machinery .Our products have exported to Europe, America and many countries and regions in South east Asia.


About us:
We are 1 manufactuer of bearing for more than 20 years.
Give us a chance, we will cooperate with our passion.
Our professional, reliable, experienced  products and service can meet your request.

  /* 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: 24 Hours Online Service
Warranty: 2 Years
Transport Package: Cartons Pallet Metal or as Your Request
Specification: Size customization
Trademark: OEM FOS
Origin: Linqing, Shandong Province.
US$ 0/Piece
1 Piece(Min.Order)




cam roller

What safety considerations should be taken into account when using cam rollers in industrial settings?

When using cam rollers in industrial settings, several safety considerations should be taken into account to ensure the well-being of personnel, prevent accidents, and maintain a safe working environment. Here are some important safety considerations when using cam rollers:

  • Proper Guarding: Cam rollers should be properly guarded to prevent accidental contact with moving parts. Depending on the specific application and the level of exposure, appropriate guarding measures such as barriers, enclosures, or safety covers should be in place to protect operators and other personnel from potential hazards associated with rotating cam rollers.
  • Lockout/Tagout Procedures: Before performing maintenance or repair tasks on cam rollers or associated equipment, appropriate lockout/tagout procedures should be followed. Lockout/tagout procedures help ensure that energy sources are isolated, machinery is de-energized, and appropriate warning devices are in place to prevent unintentional startup or release of stored energy, minimizing the risk of injury.
  • Training and Awareness: Adequate training should be provided to operators and maintenance personnel working with cam rollers. They should be trained on safe operating procedures, potential hazards, emergency protocols, and proper use of personal protective equipment (PPE). Regular refresher training sessions and ongoing awareness programs can help reinforce safe practices and promote a safety-conscious culture.
  • Risk Assessment: Conducting a thorough risk assessment specific to the application and environment is crucial. Identify potential hazards associated with cam rollers, such as pinch points, entanglement risks, or flying debris. Assess the severity of each hazard and implement appropriate control measures to mitigate the risks, such as installing physical barriers, implementing safety interlocks, or providing warning signage.
  • Maintenance and Inspections: Regular maintenance and inspections of cam rollers are essential for identifying and addressing any issues that may compromise safety. Inspect the rollers, bearings, tracks, and associated components for signs of wear, damage, or misalignment. Follow manufacturer recommendations for maintenance intervals, lubrication schedules, and component replacements to ensure the safe and reliable operation of cam rollers.
  • Proper Load Handling: Ensure that cam rollers are not subjected to loads or forces beyond their specified capacity. Overloading cam rollers can lead to premature wear, component failure, or dangerous conditions. Consider the weight, size, and distribution of the load being tracked and ensure that the cam rollers and associated components are designed to handle the applied loads safely.
  • Proper Installation and Alignment: Follow proper installation procedures and ensure accurate alignment of cam rollers. Improper installation or misalignment can result in unexpected movements, excessive friction, or component failures, posing safety risks. Adhere to manufacturer guidelines and recommended alignment procedures to ensure safe and reliable operation.
  • PPE Usage: Personal protective equipment (PPE) should be provided and used appropriately by personnel working with or in the vicinity of cam rollers. Depending on the specific hazards involved, PPE such as safety glasses, gloves, hearing protection, or safety shoes may be required to mitigate the risk of injuries due to flying debris, contact with moving parts, noise exposure, or other potential hazards.

It is important to consult relevant safety regulations, industry standards, and guidelines specific to the application and location to ensure full compliance with safety requirements when using cam rollers in industrial settings. Regular safety audits, hazard assessments, and open communication with personnel can help identify and address potential safety concerns, creating a safer working environment for everyone involved.

cam roller

What maintenance practices are recommended for cam rollers to ensure optimal functionality?

Proper maintenance is essential for ensuring the optimal functionality and longevity of cam rollers. Regular maintenance practices help prevent premature wear, minimize downtime, and maintain the performance of cam rollers in various applications. Here are some recommended maintenance practices for cam rollers:

  • Cleaning: Regularly clean the cam rollers to remove dust, dirt, and debris that can accumulate on the rolling surfaces. Use a soft brush or compressed air to clean the cam rollers, ensuring that no contaminants hinder their smooth operation.
  • Lubrication: Apply appropriate lubrication to the cam rollers to reduce friction and wear. Use lubricants recommended by the manufacturer, ensuring they are compatible with the materials and operating conditions of the cam rollers. Regularly check the lubrication levels and replenish as needed.
  • Inspection: Perform routine visual inspections of the cam rollers to check for any signs of wear, damage, or misalignment. Look for excessive play, deformation, or any irregularities that may affect their performance. If any issues are identified, take appropriate measures such as adjustments, repairs, or replacements.
  • Tightening: Check the fasteners, such as bolts or screws, that secure the cam rollers to the equipment or mounting surfaces. Ensure that they are properly tightened to prevent loosening during operation, which could lead to misalignment or reduced performance.
  • Alignment: Check the alignment of the cam rollers periodically to ensure they are properly aligned with the cam or track they are following. Misalignment can lead to increased wear, reduced accuracy, and decreased lifespan of the cam rollers. Adjust the alignment as necessary to maintain optimal functionality.
  • Load Distribution: Monitor the load distribution among the rolling elements of the cam rollers. Ensure that the load is evenly distributed to prevent overloading or excessive stress on individual rolling elements. Uneven load distribution can lead to premature wear or failure of the cam rollers.
  • Environmental Considerations: Consider the specific environmental conditions in which the cam rollers operate. Take appropriate measures to protect the cam rollers from corrosive substances, extreme temperatures, excessive moisture, or other environmental factors that may affect their performance. Use protective coatings, seals, or covers as needed.
  • Replacement: Cam rollers have a finite lifespan, and eventually, they will need to be replaced. Monitor the wear and performance of the cam rollers over time. When signs of significant wear, damage, or reduced functionality are observed, plan for timely replacement to avoid unexpected failures or disruptions in the operation.

It is important to note that maintenance practices may vary depending on the specific design, materials, and operating conditions of the cam rollers. Therefore, it is recommended to refer to the manufacturer’s guidelines and recommendations for maintenance specific to the cam rollers being used.

By following these maintenance practices and adopting a preventive maintenance approach, operators can ensure the optimal functionality, reliability, and longevity of cam rollers in various applications.

cam roller

How does the design of a cam roller contribute to efficient motion and tracking?

The design of a cam roller plays a crucial role in ensuring efficient motion transmission and tracking along the surface profile of a cam or track. Various design features are incorporated to optimize performance, reliability, and smooth operation. Here’s a detailed explanation of how the design of a cam roller contributes to efficient motion and tracking:

  • Bearing Element: The choice of the bearing element, such as cylindrical rollers, needle rollers, or ball bearings, is a critical design consideration. The bearing element should be selected based on the specific application requirements, including load capacity, speed, and precision. The bearing element allows for smooth rolling motion and efficient load distribution, minimizing friction and wear.
  • Outer Ring Profile: The outer ring of a cam roller has a profile that matches the shape of the cam or track. This design feature ensures accurate tracking and follows the contour of the cam or track surface. The outer ring provides guidance and support to the roller, allowing it to smoothly traverse the cam profile without slipping or deviating from the desired path.
  • Stud or Yoke: The stud or yoke is the component that attaches the cam roller to the moving part of the mechanical system. It is designed to provide secure attachment and proper alignment. The stud or yoke may have additional features such as threaded ends, lubrication provisions, or seals to enhance functionality and ease of maintenance.
  • Roller Retainers: In some cam roller designs, roller retainers are used to maintain proper spacing and alignment of the rollers within the outer ring. These retainers prevent roller skewing and ensure even load distribution among the rollers. By maintaining precise roller alignment, efficient motion transmission and tracking are achieved.
  • Sealing and Lubrication: Proper sealing and lubrication are essential for the efficient functioning of cam rollers. Seals prevent contaminants from entering the bearing and protect against lubricant leakage. Lubrication reduces friction and wear, ensuring smooth rolling motion. The design of cam rollers may include sealing elements and lubrication provisions to facilitate effective sealing and lubrication maintenance.

The careful consideration of these design factors contributes to efficient motion and tracking in cam rollers. When the cam roller is in operation, these design features enable it to smoothly follow the profile of the cam or track, ensuring accurate and reliable motion transmission. Efficient tracking minimizes energy losses, reduces wear, and enhances the overall performance of the mechanical system.

It is important to note that the design of a cam roller should be selected based on the specific requirements of the application. Factors such as load capacity, speed, operating conditions, and precision requirements should be taken into account to ensure optimal performance and longevity of the cam roller in the mechanical system.

In summary, the design of a cam roller, including the bearing element, outer ring profile, stud or yoke, roller retainers, sealing, and lubrication, contributes to efficient motion transmission and tracking. These design features enable smooth rolling motion, accurate tracking along the cam profile, and reliable performance in various mechanical systems.

China Best Sales Japan CHINAMFG Needle Bearing Nart6vr Cam Follower Bearings Nart6 Vr 6X19X12 mm  China Best Sales Japan CHINAMFG Needle Bearing Nart6vr Cam Follower Bearings Nart6 Vr 6X19X12 mm
editor by Dream 2024-05-10