CFH-R-AB SERIES

THK Cam Follower Model CFH AB and CFH R AB SERIES represent precision-engineered components designed for demanding linear motion applications where high rigidity, smooth operation, and exceptional durability are paramount. These cam followers feature a stud-type design with a thick outer ring and high-precision needle roller bearings, enabling them to withstand heavy loads and shock forces while maintaining precise tracking along cam profiles or guide rails. The CFH AB series offers a standard stud type configuration, while the CFH R AB series incorporates a threaded stud for simplified mounting and adjustment, enhancing installation flexibility in complex machinery layouts. Both variants are manufactured from high-carbon chromium bearing steel, heat-treated to achieve superior surface hardness and core toughness, which significantly reduces wear and extends service life under repetitive stress conditions.

Key technical features include an optimized seal structure that effectively prevents contaminants such as dust, debris, and moisture from entering the bearing assembly, ensuring consistent performance even in harsh environments. The incorporation of high-load capacity needle rollers and a crowned outer ring profile minimizes edge stress concentration, allowing for smoother motion and reduced vibration during high-speed operation. Additionally, the stud portion is precision-machined to tight tolerances, ensuring secure fixation and alignment within mating components. Performance advantages of the CFH AB and CFH R AB SERIES encompass low friction rotation, which contributes to energy efficiency and reduced heat generation, as well as high positional accuracy critical for automated processes. Their robust construction enables sustained operation under combined radial and axial loads, making them suitable for applications involving oscillating or reciprocating motions.

Typical applications span across industrial machinery, where these cam followers are integral to packaging equipment, textile machinery, and printing presses, guiding moving parts with reliability and precision. In automotive systems, they are employed in assembly line transfer mechanisms, welding robots, and engine valve train components, where their ability to handle high dynamic loads and maintain alignment ensures uninterrupted production flow. Within precision equipment, such as semiconductor manufacturing devices or medical automation systems, the CFH AB and CFH R AB SERIES provide the stability and low-noise operation necessary for delicate processes. Their versatility also extends to material handling systems, including conveyor guides and lifting apparatus, where durability and minimal maintenance requirements reduce downtime. By combining advanced materials, meticulous engineering, and proven design principles, THK’s cam followers deliver consistent performance that enhances the efficiency and longevity of machinery across diverse sectors.

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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
CFH 30-2R-AB Cam Follower
90
M30×1.5
35
37
100
45.4
87.6
67.6
145
CFH 12R-AB Cam Follower
30
M12×1.5
14
15
40
7.87
9.79
13.4
19.8
CFH 12-1R-AB Cam Follower
32
M12×1.5
14
15
40
7.87
9.79
13.4
19.8
CFH 16R-AB Cam Follower
35
M16×1.5
18
19.5
52
12
18.3
20.6
37.6
CFH 18R-AB Cam Follower
40
M18×1.5
20
21.5
58
14.7
25.2
25.2
51.3
CFH 20R-AB Cam Follower
52
M20×1.5
24
25.5
66
20.7
34.8
33.2
64.8
CFH 20-1R-AB Cam Follower
47
M20×1.5
24
25.5
66
20.7
34.8
33.2
64.8
CFH 24R-AB Cam Follower
62
M24×1.5
29
30.5
80
30.6
53.2
46.7
92.9
CFH 24-1R-AB Cam Follower
72
M24×1.5
29
30.5
80
30.6
53.2
46.7
92.9
CFH 30R-AB Cam Follower
80
M30×1.5
35
37
100
45.4
87.6
67.6
145
CFH 30-1R-AB Cam Follower
85
M30×1.5
35
37
100
45.4
87.6
67.6
145