THK’s Cam Follower Model CF/CF R SERIES represents a specialized category of linear motion components engineered for applications requiring precise guidance along cam profiles, tracks, or guide surfaces. These robust units combine the functionality of needle roller bearings with integrated stud shafts or yoke types, delivering exceptional durability and load capacity in demanding environments. The series is characterized by its high rigidity, smooth rotational performance, and resistance to shock loads, making it indispensable in machinery where accurate motion transfer and longevity are critical.
Technically, the CF/CF R SERIES features a unique outer ring design that incorporates a crowned or cylindrical outer surface, optimized to mitigate edge loading and distribute stresses evenly. This crowning minimizes localized wear and extends service life, even under misalignment conditions. The outer ring is through-hardened for superior surface hardness, enhancing resistance to indentation and abrasion. Internally, needle rollers are precision-arranged and retained by a crown-type cage, ensuring stable rotation and reduced friction. Lubrication is facilitated through grease fittings or oil holes, allowing for easy maintenance and consistent performance in high-speed or high-temperature scenarios. The stud shaft variants are manufactured from high-carbon chromium bearing steel, heat-treated to achieve core toughness and surface hardness, while sealed options protect against contaminants like dust, chips, and moisture.
Performance advantages of this series include high load-carrying capacity, with the ability to withstand substantial radial and moment loads due to the optimized needle roller arrangement. The low coefficient of friction translates to smoother operation and reduced energy consumption, contributing to overall system efficiency. Additionally, the cam followers exhibit minimal rotational torque variation, ensuring consistent motion accuracy in cyclic applications. Their compact design allows for space-saving integration without compromising on strength, and the availability of various configurations—such as standard, heavy-duty, and sealed types—enables customization to specific operational needs.
Typical applications span multiple industries, leveraging the reliability of THK’s Cam Follower Model CF/CF R SERIES. In industrial machinery, they are widely used in cam-driven mechanisms, conveyor systems, and automated transfer lines, where they guide moving parts along predetermined paths with precision. Automotive systems employ these components in assembly robots, welding equipment, and engine valve trains, benefiting from their shock resistance and low maintenance requirements. In precision equipment, such as printing presses, packaging machines, and semiconductor manufacturing tools, the series ensures accurate linear guidance and reduces vibration-induced errors. By providing dependable performance under heavy loads and harsh conditions, THK’s cam followers enhance the productivity and longevity of diverse mechanical systems.
| Model No. | Main dimensions | Basic load rating | |||||||
| Outer diameter D |
Threaded G |
Outer ring width C |
B |
Overall length B1 |
With cage | Full-roller type | |||
| Dynamic rating C |
Static rating C0 |
Dynamic rating C |
Static rating C0 |
||||||
| mm | mm | mm | mm | mm | kN | kN | kN | kN | |
13 |
M5×0.8 |
9 |
10 |
23 |
3.14 |
2.77 |
— |
— |
|
16 |
M6×1 |
11 |
12 |
28 |
3.59 |
3.58 |
6.94 |
8.5 |
|
19 |
M8×1.25 |
11 |
12 |
32 |
4.17 |
4.65 |
8.13 |
11.2 |
|
22 |
M10×1.25 |
12 |
13 |
36 |
5.33 |
6.78 |
9.42 |
14.3 |
|
26 |
M10×1.25 |
12 |
13 |
36 |
5.33 |
6.78 |
9.42 |
14.3 |
|