Product Description


NATV Yoke track Roller Bearing NATR 25 PP Cam Follower Bearing

Description of NATV Yoke track Roller Bearing NATR 25 PP Cam Follower Bearing

Series Description
NATR Yoke type track rollers with axial guidance by washers,gap seal,with inner ring
NATR…PP Yoke type track rollers with additional sealing rings
NATV Yoke type track rollers with axial guidance by washers,full complement,gap seal,with inner ring
NATV…PP Yoke type track rollers with additional sealing rings
NUTR Yoke type track rollers with axial guidance by the rolling element,full complement,gap seal,with inner ring
KR Stud type track rollers with axial guidance by rid and washer,gap seal
KR…PP Stud type track rollers with sealing rings
KRE Stud type track rollers with eccentric collar
KRE…PP Stud type track rollers with eccentric collar and sealing rings
KRV Stud type track rollers with axial guidance by rid and washer,full complement, gap seal
KRV…PP Stud type track rollers with sealing rings
KRVE Stud type track rollers with eccentric collar
KRVE…PP Stud type track rollers with eccentric collar and sealing rings
NUKR Stud type track rollers with axial guidance by the rolling element,full complement, gap seals
NUKRE Stud type track rollers with eccentric collar
CF Stud type track rollers with cage ,the same as KR series

Catalogue of NATV Yoke track Roller Bearing NATR 25 PP Cam Follower Bearing



Bearing Designation and 

mass approx

Borndary Dimensions Basic Load Rating





Mass Sealed Mass d D B C d1 Cr Cor As Yoke Type Track Rollers Grease
Dynamic Static Cw Cow
mm   g   g mm N rpm
16 NATR 5 14 NATR 5 PP 14 5 16 12 11 12 3050 3000 2050 2400 22000
NATV 5 15 NATV 5 PP 15 5 16 12 11 12 4500 6300 3680 4300 8500
19 NATR 6 20 NATR 6 PP 20 6 19 12 11 14 3600 3650 2450 2850 20000
NATV 6 21 NATV 6 PP 21 6 19 12 11 14 5700 8700 4600 6750 7000
24 NATR 8 41 NATR 8 PP 41 8 24 15 14 19 4500 5400 3900 4500 5000
NATV 8 42 NATV 8 PP 42 8 24 15 14 19 8600 12000 6700 9800 5500
30 NATR 10 64 NATR 10 PP 64 10 30 15 14 23 6100 7800 4500 6900 11000
NATV 10 65 NATV 10 PP 65 10 30 15 14 23 10900 17000 7600 11800 4500
32 NATR 12 71 NATR 12 PP 71 12 32 15 14 25 6600 9800 4660 7000 9000
NATV 12 72 NATV 12 PP 72 12 32 15 14 25 11800 19000 7800 13000 3900
35 NATR 15 103 NATR 15 PP 103 15 35 19 18 27 10500 17500 7800 11500 7000
NATV 15 105 NATV 15 PP 105 15 35 19 18 27 16000 32500 15710 20500 3400
40 NATR 17 144 NATR 17 PP 144 17 40 21 20 32 11800 19400 9500 13500 6000
NATV 17 152 NATV 17 PP 152 17 40 21 20 32 19600 37000 1200 23000 2900
47 NATR 20 246 NATR 20 PP 246 20 47 25 24 37 17500 29800 13500 22500 4900
NATV 20 254 NATV 20 PP 254 20 47 25 24 37 25800 57000 19000 39500 2600
52 NATR 25 275 NATR 25 PP 275 25 52 25 24 42 19500 36500 13400 23500 3600
NATV 25 285 NATV 25 PP 285 25 52 25 24 42 29000 69600 19800 40900 2100
62 NATR 30 470 NATR 30 PP 470 30 62 29 28 51 31000 57500 20900 35500 2600
NATV 30 481 NATV 30 PP 481 30 62 29 28 51 45500 104000 27800 60900 1700
72 NATR 35 635 NATR 35 PP 635 35 72 29 28 58 34500 67500 22500 41000 2000
NATV 35 647 NATV 35 PP 647 35 72 29 28 58 50800 109500 30900 70800 1400
80 NATR 40 805 NATR 40 PP 805 40 80 32 30 66 47000 91500 30900 56500 1700
NATV 40 890 NATV 40 PP 890 40 80 32 30 66 64000 139000 39800 87800 1300
85 NATR 45 910 NATR 45 PP 910 45 85 32 30 72 49100 98000 30600 56900 1500
90 NATR 50 960 NATR 50 PP 960 50 90 32 30 76 50500 10600 30600 57500 1300
NATV 50 990 NATV 50 PP 990 50 90 32 30 76 69500 187000 38700 90900 1000


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Rolling Body: Roller Bearings
The Number of Rows: Single
Outer Dimension: Small and Medium-Sized (60-115mm)
Material: Bearing Steel
Spherical: Non-Aligning Bearings
Load Direction: Radial Bearing


Customized Request

cam folllow bearing

Can you provide insights into recent advancements in cam follower bearing technology?

Recent years have witnessed several advancements in cam follower bearing technology, driven by the continuous pursuit of improved performance, durability, and efficiency. Here are some notable insights into the recent advancements in cam follower bearing technology:

  • Enhanced Materials: One significant advancement in cam follower bearing technology is the use of advanced materials. Manufacturers have been exploring new materials with improved properties such as higher strength, enhanced wear resistance, and better corrosion resistance. For example, the incorporation of high-performance materials like ceramic or composite elements in cam follower bearings has resulted in increased durability, reduced friction, and extended service life.
  • High-Speed Capability: Cam follower bearings have seen advancements in their ability to operate at higher speeds. With the demand for faster and more efficient machinery, cam follower bearings are now designed to withstand higher rotational speeds while maintaining precision and reliability. This improvement in high-speed capability allows for the optimization of performance in applications where rapid and accurate motion is required, such as high-speed automation, robotics, or printing presses.
  • Improved Lubrication: Lubrication plays a critical role in the performance and longevity of cam follower bearings. Recent advancements have focused on developing innovative lubrication solutions to enhance the bearing’s efficiency and reliability. For instance, the application of advanced lubricants with superior film formation properties and enhanced temperature resistance has resulted in reduced friction, improved wear protection, and extended maintenance intervals.
  • Optimized Design: Advances in design techniques have led to optimized cam follower bearing designs. Computer-aided design (CAD) tools and simulations have enabled engineers to refine the geometries and profiles of cam follower bearings for improved load distribution, reduced stress concentrations, and enhanced overall performance. These optimized designs help achieve higher load-carrying capacity, improved accuracy, and reduced noise levels.
  • Sealing and Contamination Protection: Cam follower bearings are often exposed to harsh environments and contaminants that can affect their performance. Recent advancements in sealing technologies have resulted in improved sealing solutions for cam follower bearings. Enhanced seals and protective coatings help prevent the ingress of contaminants such as dust, dirt, or moisture, thereby extending the bearing’s service life and reducing the risk of premature failure.
  • Condition Monitoring and Predictive Maintenance: Industry 4.0 and the rise of digitalization have also influenced cam follower bearing technology. The integration of sensors and monitoring systems allows for real-time condition monitoring of cam follower bearings. These systems can collect data on factors like temperature, vibration, and load, enabling predictive maintenance strategies. By detecting early signs of wear or potential failures, predictive maintenance helps optimize maintenance schedules, reduce downtime, and improve overall operational efficiency.

These recent advancements in cam follower bearing technology have significantly contributed to the improvement of performance, durability, and reliability in various industrial applications. The integration of advanced materials, high-speed capabilities, improved lubrication, optimized designs, sealing and contamination protection, and condition monitoring systems have all played a role in pushing the boundaries of cam follower bearing technology and meeting the evolving needs of modern machinery and equipment.

cam folllow bearing

What are the challenges and solutions for managing radial loads and eccentric motion in cam follower bearings?

Managing radial loads and eccentric motion in cam follower bearings can pose challenges in certain applications. Let’s discuss these challenges and explore potential solutions:


1. Radial Load Management: Cam follower bearings often experience significant radial loads, which can cause increased stress, wear, and potential failure if not properly managed. The challenges include:

  • High radial forces due to the application requirements or external factors.
  • Uneven distribution of load across the bearing surface.
  • Impact or shock loads that exceed the bearing’s capacity.

2. Eccentric Motion: Eccentric motion occurs when the centerline of the cam follower bearing deviates from its ideal path during operation. This can lead to issues such as:

  • Uneven wear on the bearing surface.
  • Inefficient transmission of motion or power.
  • Increased friction and heat generation.


To address the challenges associated with radial loads and eccentric motion in cam follower bearings, several solutions can be implemented:

1. Bearing Selection: Choosing the appropriate cam follower bearing based on the application requirements is crucial. Considerations include:

  • Selecting bearings with higher radial load capacity and appropriate load ratings.
  • Opting for bearings made of materials with high strength and wear resistance.
  • Using bearings with specialized designs, such as crowned outer rings or larger contact areas, to distribute the load more evenly.

2. Lubrication: Proper lubrication is essential for managing radial loads and reducing friction. Effective lubrication helps:

  • Minimize wear and prevent surface damage.
  • Reduce friction and heat generation.
  • Absorb shock and distribute loads more evenly.

3. Mounting and Alignment: Correct mounting and alignment of cam follower bearings play a vital role in managing radial loads and eccentric motion. Consider the following:

  • Ensuring proper alignment of the bearing with the cam profile or track to minimize eccentric motion.
  • Applying appropriate preloading or clearance adjustment to optimize load distribution.
  • Using precision mounting techniques to minimize misalignment and maximize the bearing’s load-carrying capacity.

4. Damping and Shock Absorption: In applications with significant shock loads or vibrations, incorporating damping and shock absorption mechanisms can help:

  • Reduce the impact of sudden load changes.
  • Minimize the transmission of vibrations to the bearing.
  • Provide additional protection against excessive loads and eccentric motion.

5. Regular Maintenance and Inspection: Implementing a proactive maintenance schedule and performing regular inspections can help identify and address issues early. This includes:

  • Monitoring the bearing’s performance and checking for signs of wear, damage, or misalignment.
  • Replacing worn or damaged bearings promptly.
  • Applying appropriate lubrication and ensuring it is replenished as needed.

By considering these solutions, managing radial loads and eccentric motion in cam follower bearings can be effectively addressed, leading to improved performance, extended bearing life, and reliable operation in various applications.

cam folllow bearing

Can you explain the design principles of cam follower bearings and their functions?

Cam follower bearings are designed based on specific principles to ensure their efficient operation and fulfill their intended functions. Understanding these design principles is essential for comprehending how cam follower bearings work and how they serve their purposes. Here, we will explain the design principles of cam follower bearings and delve into their functions:

  • Design Principles of Cam Follower Bearings:
  • The design of cam follower bearings incorporates several key principles:

    • Cam Following: Cam follower bearings are designed to follow the contour or profile of a cam accurately. This design principle enables the bearing to maintain contact with the cam’s surface throughout its motion, ensuring smooth and precise tracking. The outer diameter of the bearing, which houses the rolling elements, is designed to match the shape of the cam.
    • Rolling Element Bearings: Cam follower bearings utilize rolling elements, such as cylindrical rollers or needle rollers, to reduce friction and facilitate motion. These rolling elements are positioned between the cam’s surface and the bearing’s outer diameter. The use of rolling elements enables smooth rolling motion and reduces wear, allowing for efficient operation even at high speeds.
    • Stud or Shaft Mounting: Cam follower bearings are designed with a stud or shaft for mounting purposes. The stud is often threaded to facilitate easy installation and secure attachment to a structure or component. The stud or shaft provides the necessary support and stability for the bearing assembly, allowing it to roll along the cam’s surface.
    • Cage or Retainer: Cam follower bearings typically incorporate a cage or retainer to hold the rolling elements in place. The cage prevents the rolling elements from contacting each other, ensuring proper spacing and distribution of load. It also helps to maintain alignment and prevent the rolling elements from skewing under load, enhancing the bearing’s overall performance and longevity.
    • Sealing and Lubrication: Cam follower bearings may include sealing arrangements to protect the internal components from contaminants and retain lubrication. Seals or shields can be incorporated to prevent the ingress of dirt, moisture, or other foreign particles. Proper lubrication is crucial for reducing friction, dissipating heat, and preventing premature wear or damage to the bearing components.
  • Functions of Cam Follower Bearings:
  • The design principles of cam follower bearings enable them to perform several important functions:

    • Cam Tracking: The primary function of cam follower bearings is to accurately follow the profile of a cam. By maintaining contact with the cam’s surface, the bearing converts the rotational motion of the cam into linear or oscillating motion. This function is essential in various applications where motion needs to be translated, transformed, or guided.
    • Motion Conversion: Cam follower bearings play a crucial role in converting rotary motion into linear or oscillating motion. This function is particularly useful in mechanisms that require precise and controlled movement, such as in cam-driven systems, sliding mechanisms, or lifting devices.
    • Load Support: Cam follower bearings are designed to support high loads. They provide a stable and robust platform for carrying radial and axial loads, ensuring the smooth operation of the associated components. This function is critical in applications that involve heavy loads, such as material handling equipment, automotive systems, or machinery.
    • Motion Control: Cam follower bearings contribute to motion control by providing stability and guidance. They help regulate the speed, direction, and timing of the motion, ensuring consistent and coordinated movement. This function is essential in applications that require precise positioning, synchronization, or sequencing of components.
    • Durability and Reliability: Cam follower bearings are designed to withstand challenging operating conditions. Their robust construction, along with the use of high-quality materials, ensures durability and reliability even in demanding environments. This function is vital for applications where reliability, longevity, and minimal downtime are paramount.

In summary, the design principles of cam follower bearings revolve around accurate cam following, the use of rolling element bearings, stud or shaft mounting, cage or retainer incorporation, and sealing and lubrication arrangements. These design principles enable cam follower bearings to fulfill their functions, including cam tracking, motion conversion, load support, motion control, and providing durability and reliability in various mechanical applications.

China high quality Natv Yoke Track Roller Bearing Natr 25 PP Cam Follower Bearing   bearing engineeringChina high quality Natv Yoke Track Roller Bearing Natr 25 PP Cam Follower Bearing   bearing engineering
editor by CX 2024-05-14