Product Description

Model KR../KRV../CF..
Precision Rating g6
Material Gcr15,stainless steel
Customeized OEM,ODM
Packing Plastic bag+inner box.According to customer’s request
Sample Free sample and catalogue available
Certification SGS, ISO9001,ISO14001,OHSAS18001
Application CNC machines, medical and food machinery, fitness machinery, packaging machinery, printing machinery, and other machinery supporting equipment. 
Feature Super high presicion,Low noise,Low backlash,In large stock,Prompt delivery


Product Description


A needle roller bearing is a special type of roller bearing which uses long, thin cylindrical rollers resembling needles. Ordinary roller bearings’ rollers are only slightly longer than their diameter, but needle bearings typically have rollers that are at least 4 times longer than their diameter.



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1,Our Team:
We have experienced and qualified team of marketing and sales representatives to serve our valued customers with the finest products and unsurpassed service.And have professional engineers team to assessment and development the new precision products,and make the OEM customized more easily,experienced QC team to test the products quaity ensure the goods quality before delivery out.
2,Our products:
Quality is the life .We use only the best quality material to ensure the precision of our
Product.All products we sold out are strictly selected and tested by our QC department.
We accept payment via TT (Bank transfer), L/C,Western Union.
4,Shipping method:
Including DHL, UPS, TNT, FEDEX,EMS, Airfreight and by Sea,as customer required.

To get sample or price list of linear gudies,ball screw, please contact us.



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Rolling Body: Roller Bearings
The Number of Rows: Standard
Outer Dimension: Standard
US$ 5/Piece
1 Piece(Min.Order)


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

cam folllow bearing

How do temperature variations and environmental conditions impact the performance of cam follower bearings?

Temperature variations and environmental conditions can significantly impact the performance of cam follower bearings. Let’s explore how these factors affect the bearings in detail:

Temperature Variations:

Temperature variations can have both direct and indirect effects on the performance of cam follower bearings:

  • Lubrication: Temperature changes can affect the viscosity and flow properties of lubricants used in cam follower bearings. High temperatures can cause lubricants to thin out, reducing their effectiveness in creating a protective film between the rolling elements and raceways. Conversely, low temperatures can cause lubricants to thicken, impeding their ability to flow and provide adequate lubrication. Insufficient or degraded lubrication can lead to increased friction, wear, and premature failure of the bearing.
  • Expansion and Contraction: Temperature variations cause the components of cam follower bearings to expand or contract. This can lead to changes in clearances, fit, and geometric tolerances within the bearing assembly. If not properly accounted for, excessive clearances or interference fits can affect the bearing’s load-carrying capacity, accuracy, and overall performance.
  • Thermal Stresses: Differential expansion and contraction due to temperature fluctuations can induce thermal stresses within the bearing components. These stresses can affect the dimensional stability, material fatigue properties, and overall structural integrity of the bearing. Excessive thermal stresses can lead to deformation, microcracking, or accelerated wear, compromising the performance and lifespan of the bearing.
  • Heat Dissipation: High operating temperatures in cam follower bearings can result in increased heat generation. If not effectively dissipated, excessive heat can lead to thermal overload, degraded lubrication, and accelerated wear. Proper heat dissipation mechanisms, such as cooling fins, lubricant circulation, or heat sinks, are necessary to maintain the bearing within acceptable temperature ranges and ensure optimal performance.

Environmental Conditions:

The environmental conditions in which cam follower bearings operate can also impact their performance:

  • Contaminant Ingress: Harsh environments with high levels of dust, dirt, moisture, or other contaminants pose a significant risk to cam follower bearings. Contaminants can enter the bearing assembly and cause abrasive wear, corrosion, or damage to the rolling elements and raceways. Seals and shields are used to protect the bearing from such contaminants, ensuring reliable operation and extending the bearing’s service life.
  • Corrosion and Chemical Exposure: Exposure to corrosive substances, chemicals, or aggressive media can degrade the bearing’s materials and surfaces. Corrosion can lead to pitting, surface roughness, or material deterioration, compromising the bearing’s load-carrying capacity and overall performance. Proper material selection, protective coatings, and sealing solutions are essential to mitigate the effects of corrosion and chemical exposure.
  • Humidity and Moisture: High humidity or exposure to moisture can promote the formation of water condensation or the absorption of moisture by the bearing components. This can lead to rust, oxidation, or lubricant contamination, impairing the bearing’s performance and lifespan. Effective sealing and proper maintenance practices are necessary to safeguard against the detrimental effects of humidity and moisture.
  • Extreme Environments: Cam follower bearings operating in extreme environments, such as high altitudes, underwater applications, or extreme temperatures, require specialized designs and materials. These extreme conditions can pose additional challenges, such as reduced oxygen levels, increased pressure differentials, or extreme temperature gradients. Bearings designed for such environments incorporate features to address these challenges and ensure reliable performance.

Considering temperature variations and environmental conditions is crucial when selecting cam follower bearings. It allows for the proper choice of materials, lubrication methods, sealing solutions, and protective measures to ensure optimal performance, longevity, and reliability in diverse operating conditions.

cam folllow bearing

What are the signs of wear or damage in cam follower bearings, and when should they be replaced?

Cam follower bearings can exhibit signs of wear or damage over time, which may indicate the need for replacement. Let’s explore the common signs of wear or damage in these bearings and discuss when they should be replaced:

1. Increased Noise: Unusual or excessive noise during operation, such as grinding, squeaking, or rumbling sounds, can be an indication of bearing wear. If the noise becomes noticeably louder or changes in pitch, it is advisable to inspect the bearing for potential damage.

2. Abnormal Vibration: Excessive vibration or noticeable changes in vibration patterns can be a sign of bearing wear or misalignment. Excessive vibration can lead to accelerated wear and potential failure of the bearing if not addressed promptly.

3. Irregular Motion: If the cam follower bearing exhibits irregular or inconsistent motion, such as sticking, jerking, or hesitation, it may indicate wear or damage. This can affect the smooth operation of the machinery and lead to decreased efficiency or performance issues.

4. Increased Friction: If the bearing experiences higher levels of friction, it may result in increased heat generation or uneven wear. Excessive friction can lead to premature wear of the bearing surfaces and compromise the overall performance of the machinery.

5. Visible Damage: Inspect the bearing for any visible signs of damage, such as cracks, pitting, spalling, or deformation. These visual indications may suggest that the bearing has reached its operational limits and requires replacement.

6. Loss of Lubrication: Insufficient lubrication or loss of lubricant film can lead to accelerated wear and damage in cam follower bearings. If there are signs of inadequate lubrication, such as dry or discolored surfaces, it is essential to address the lubrication issue and consider replacing the bearing if necessary.

7. Excessive Play or Clearance: Excessive axial or radial play in the bearing, or an increase in the clearance between the bearing components, can indicate wear or damage. Excessive play can affect the precision of motion and compromise the overall performance of the machinery.

When to Replace Cam Follower Bearings:

The exact timing for bearing replacement depends on various factors, including the severity of wear or damage, the criticality of the application, and the manufacturer’s guidelines. However, as a general guideline, cam follower bearings should be replaced under the following circumstances:

  • When any of the above-mentioned signs of wear or damage are observed.
  • If the bearing is approaching or has exceeded its predicted service life based on the manufacturer’s recommendations.
  • When routine inspections reveal significant wear or damage that may compromise the bearing’s performance or safety.
  • During scheduled maintenance or overhaul of the machinery, as part of a proactive replacement strategy.

It is crucial to consult the manufacturer’s guidelines, maintenance manuals, or seek the advice of a qualified engineer or technician to determine the appropriate timing for cam follower bearing replacement in specific applications.

By monitoring the signs of wear or damage, and addressing them promptly, the performance, reliability, and safety of the machinery can be maintained, minimizing the risk of unexpected failures or production disruptions.

cam folllow bearing

How does proper lubrication impact the performance and longevity of cam follower bearings?

Proper lubrication plays a critical role in enhancing the performance and longevity of cam follower bearings. Adequate lubrication helps reduce friction, dissipate heat, prevent wear, and minimize the risk of damage or premature failure. Let’s explore in detail how proper lubrication impacts the performance and longevity of cam follower bearings:

  • Friction Reduction:
  • Lubrication creates a thin film of lubricant between the rolling elements and the raceways of the cam follower bearing. This lubricating film reduces the friction between the contacting surfaces, allowing for smoother rolling motion. By minimizing friction, proper lubrication helps to optimize the efficiency of the bearing, reduce energy consumption, and minimize heat generation.

  • Wear Prevention:
  • Cam follower bearings are subjected to repeated cycles of loading and unloading, which can lead to surface contact and potential wear. The presence of an appropriate lubricant creates a protective barrier between the rolling elements and the raceways, preventing direct metal-to-metal contact. This lubricating film helps to minimize wear, pitting, and surface damage, thereby extending the bearing’s lifespan.

  • Heat Dissipation:
  • During operation, cam follower bearings generate heat due to friction and the mechanical forces involved. Proper lubrication helps dissipate this heat by carrying it away from the bearing’s contact surfaces. Efficient heat dissipation prevents excessive temperature rise, which can lead to thermal expansion, loss of lubrication properties, and accelerated wear. By maintaining appropriate operating temperatures, proper lubrication contributes to the longevity and reliability of the bearing.

  • Contamination Protection:
  • Lubrication acts as a barrier against contaminants such as dirt, dust, moisture, and other foreign particles. It helps to seal the bearing and prevent the ingress of contaminants into the bearing’s internal components. By keeping the rolling elements and raceways clean, proper lubrication reduces the risk of abrasive wear, corrosion, and damage caused by particle-induced stress concentrations.

  • Corrosion Prevention:
  • In environments where corrosion is a concern, such as high humidity or exposure to corrosive substances, proper lubrication helps protect the bearing against corrosion. The lubricant forms a protective layer that inhibits moisture and corrosive agents from reaching the bearing surfaces. This corrosion prevention capability ensures the integrity of the bearing’s components and prolongs its operational life.

  • Noise and Vibration Reduction:
  • Proper lubrication can contribute to reducing noise and vibration levels in cam follower bearings. The lubricating film helps to cushion the impact and dampen the vibrations caused by the rolling elements. This dampening effect minimizes noise generation and vibration transmission, resulting in smoother and quieter bearing operation.

  • Longevity and Reliability:
  • By providing effective lubrication, cam follower bearings experience reduced friction, wear, and heat, resulting in increased longevity and reliability. Proper lubrication ensures the bearing can withstand heavy loads, high speeds, and demanding operating conditions while maintaining its performance over an extended period. It helps prevent premature failure, minimizes the risk of unplanned downtime, and contributes to the overall productivity of the application.

In summary, proper lubrication is essential for optimizing the performance and longevity of cam follower bearings. It reduces friction, prevents wear, dissipates heat, protects against contamination and corrosion, reduces noise and vibration, and enhances the bearing’s overall reliability. By selecting the appropriate lubricant and following the recommended lubrication intervals, cam follower bearings can operate efficiently, withstand demanding conditions, and provide extended service life.

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editor by CX 2024-05-14