CFH-AB SERIES

THK’s Cam Follower Model CFH AB SERIES represents a specialized category of linear motion components engineered for applications requiring high rigidity, precision tracking, and durability under demanding operational conditions. These cam followers feature a stud-type design with a thick outer ring and high-precision needle roller bearing construction, enabling smooth rotational motion while withstanding substantial radial loads, impact forces, and moment loads. The CFH AB variant incorporates a hexagonal hole in the stud head, facilitating secure installation and maintenance using standard tools to prevent slippage during torque application. Key technical specifications include optimized internal geometry for reduced stress concentration, superior surface finish on the outer ring to minimize wear and friction, and advanced sealing mechanisms that effectively exclude contaminants like dust, chips, and moisture while retaining lubrication.

Performance advantages of the CFH AB SERIES stem from THK’s rigorous manufacturing standards and material selection. The outer ring is typically manufactured from high-carbon chromium bearing steel (SUJ2) or case-hardened steel, heat-treated to achieve a hardened outer surface with a tough core, significantly enhancing fatigue life and resistance to brinelling. Needle rollers are precision-ground and held within a reinforced cage to maintain even load distribution and prevent skewing under high-speed rotation. This design results in exceptional rotational accuracy, low noise operation, and extended service intervals even in environments with limited lubrication. The compact, high-capacity design allows for space-saving machine configurations without compromising load-bearing capability or positional stability.

Typical industrial applications leverage these attributes across multiple sectors. In automated industrial machinery, CFH AB cam followers are deployed in cam-driven indexing tables, transfer lines, and packaging equipment where they guide moving parts along precise paths, convert rotary motion into linear or oscillating motion, and support heavy sliding fixtures. Automotive production systems utilize them in welding robots, assembly jigs, and material handling conveyors to maintain alignment under dynamic loads and vibrational stresses. Within precision equipment, such as printing presses, textile looms, or semiconductor manufacturing apparatus, they ensure repeatable motion control in guiding mechanisms, tensioning devices, and linear actuator supports. Their robustness also makes them suitable for harsh environments found in steel mills, construction machinery, and agricultural equipment, where shock resistance and contamination protection are critical. By integrating the CFH AB SERIES, engineers achieve reliable motion transmission, reduced maintenance downtime, and enhanced system longevity across diverse mechanical systems.

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