Cam followers (Stud-type track rollers)

SKF Cam Followers (Stud-type track rollers) are bearings designed to run on various tracks and are commonly used in cam drives, conveyor systems, etc. They are based on needle roller bearings and have a threaded solid stud instead of an inner ring. This design enables Cam Followers to perform well in different working conditions, especially where high radial load capacity and axial loads caused by runout or tilt are required. Design and functional features The design of Cam Followers includes an eccentric sleeve pressed on the stud, as well as a thick-walled outer ring and crowned running surface. This design not only improves radial load capacity, but also withstands axial loads, extends service life, and is easy to install. In addition, the bearings are sealed on both sides for increased reliability and can be relubricated via the studs.

SKF Cam Followers, also known as Stud-Type Track Rollers, are precision-engineered components designed to convert rotational motion into linear motion or follow cam profiles in mechanical systems. These heavy-duty rollers combine a needle roller bearing with a hardened outer ring and a threaded stud, enabling them to withstand high radial loads, shock, and misalignment while maintaining smooth operation. Ideal for cam-driven systems, conveyor guides, and industrial automation, SKF Cam Followers deliver unmatched durability, precision, and reliability in applications ranging from packaging machinery to automotive valve trains.

Key Features & Benefits

  1. High Load Capacity & Durability

Radial Load Support: Engineered to handle radial loads up to 200 kN (dependent on size), making them suitable for heavy-duty industrial applications.

Shock Resistance: Reinforced outer rings and needle roller bearings absorb impact forces in high-vibration environments (e.g., stamping presses, excavators).

Hardened Outer Rings: Case-hardened chromium steel (SAE 52100) with surface hardness of 58–62 HRC for wear resistance.

  1. Precision Motion Control

Low-Friction Design: Needle roller bearings ensure smooth rolling motion, even at speeds up to 1,500 RPM.

Cam Profile Compatibility: Ground outer diameters (±0.005 mm tolerance) maintain precise contact with cam surfaces.

  1. Robust Construction & Sealing

Stud Design: Forged alloy steel studs (e.g., 42CrMo4) with induction-hardened threads for secure mounting.

Sealing Solutions: Triple-lip seals (SKF LLU/LLB series) or labyrinth seals provide IP67 protection against dust, water, and debris.

  1. Versatile Configurations

Eccentric Studs: Allow fine adjustment of roller position (±2 mm) for cam alignment.

Flange Variants: Flanged outer rings for axial retention in track-guided systems.

Corrosion-Resistant Models: Stainless steel (AISI 440C) or coated rollers for marine, chemical, or food-processing environments.

  1. Maintenance Efficiency

Pre-Lubricated Units: Greased with SKF LGHP 2 high-performance lubricant for extended service intervals.

Easy Replacement: Modular design simplifies roller swaps without disassembling entire systems.

Applications & Industry Use Cases

SKF Cam Followers excel in systems requiring precise motion control under extreme loads:

  1. Industrial Automation

Packaging Machinery: Guide and control product movement in filling, labeling, and sealing systems.

Printing Presses: Maintain registration accuracy in paper feed mechanisms.

  1. Automotive & Aerospace

Valve Trains: Follow camshaft profiles in high-RPM engines.

Aircraft Landing Gear: Durable rollers for retraction mechanisms.

  1. Material Handling

Conveyor Systems: Support and guide heavy loads in warehouse automation.

Robotic Arms: Precision motion in pick-and-place operations.

  1. Heavy Machinery

Excavator Bucket Linkages: Withstand abrasive conditions in mining and construction.

Steel Rolling Mills: Track rollers for billet transfer systems.

  1. Renewable Energy

Wind Turbine Pitch Control: Corrosion-resistant rollers for offshore installations.

Solar Panel Tracking Systems: Ensure precise angular adjustments.

SKF Cam Followers (Stud-Type Track Rollers) are the ultimate solution for precision motion control in high-load, high-cycle applications. Their robust construction, advanced sealing, and adaptability make them indispensable for industries ranging from automotive manufacturing to renewable energy systems. By integrating SKF’s cutting-edge materials, lubrication technologies, and global engineering support, these rollers deliver unparalleled durability, reduced downtime, and lower total cost of ownership. Whether guiding cam profiles in packaging machinery or supporting heavy loads in excavators, SKF Cam Followers empower industries to achieve peak performance while navigating the challenges of extreme operating conditions.

 

 

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Designation Functional outside diameter Stud diameter Length Basic dynamic load rating Limiting speed Mass
KRV 35 PPX
35.0 mm
16.0 mm
52.1 mm
11.9 kN
2400.0 r/min
0.171 kg
KRV 62 PPXA
62.0 mm
24.0 mm
80.0 mm
31.4 kN
1700.0 r/min
0.879 kg
KRVE 19 PP
19.0 mm
11.0 mm
32.2 mm
5.01 kN
3800.0 r/min
0.035 kg
KRVE 26 PP
26.0 mm
13.0 mm
36.2 mm
6.44 kN
3600.0 r/min
0.065 kg
NUKR 72 XA
72.0 mm
24.0 mm
80.0 mm
45.7 kN
2000.0 r/min
1.13 kg
PWKRE 52.2RS
52.0 mm
24.0 mm
66.0 mm
23.8 kN
3200.0 r/min
0.528 kg
KR 62 PPX
62.0 mm
24.0 mm
80.1 mm
24.2 kN
2200.0 r/min
0.884 kg
KR 80 X
80.0 mm
30.0 mm
100.0 mm
35.8 kN
1800.0 r/min
1.55 kg
KRE 90 PP
90.0 mm
35.0 mm
100.0 mm
38.0 kN
1800.0 r/min
2.01 kg
KRV 16
16.0 mm
6.0 mm
28.2 mm
4.57 kN
4300.0 r/min
0.02 kg
KRV 32 PPX
32.0 mm
12.0 mm
40.2 mm
9.13 kN
3200.0 r/min
0.1 kg
KRV 90 PPX
90.0 mm
30.0 mm
100.0 mm
46.8 kN
1300.0 r/min
1.97 kg
KR 62 X
62.0 mm
24.0 mm
80.1 mm
24.2 kN
2200.0 r/min
0.884 kg
KRVE 80 PP
80.0 mm
35.0 mm
100.0 mm
44.6 kN
1300.0 r/min
1.62 kg
KR 72
72.0 mm
24.0 mm
80.1 mm
25.5 kN
2200.0 r/min
1.04 kg
NUKR 80 XA
80.0 mm
30.0 mm
100.0 mm
69.3 kN
1900.0 r/min
1.8 kg
KR 72 PPX
72.0 mm
24.0 mm
80.1 mm
25.5 kN
2200.0 r/min
1.04 kg
KR 90 PPX
90.0 mm
30.0 mm
100.0 mm
38.0 kN
1800.0 r/min
1.95 kg
KR 90 X
90.0 mm
30.0 mm
100.0 mm
38.0 kN
1800.0 r/min
1.95 kg
KRV 26
26.0 mm
10.0 mm
36.2 mm
6.44 kN
3600.0 r/min
0.061 kg