Cam Followers

Cam followers are rolling bearings that integrate a thick-walled outer ring (roller) with a threaded stud (shaft). They are installed by simply fixing the stud to a female-threaded hole or through-hole in the machine frame with a nut, and the outer ring rolls on the surface of a cam or rail to guide the load. They are used in cam mechanisms, guide rollers for conveyors, linear guides, machine tools, and packaging machines. Rolling elements include needle rollers with cage and full-complement types for higher load capacity. Variants include eccentric stud type for adjustable mounting position, sealed type with seals, and outer ring profiles that are either cylindrical or crowned (spherical).

• Cam Followers

  PWKRE 90.2RS

  Model: PWKRE 90.2RS

  Eccentric sealed cam follower with an outer diameter of approximately 90 mm.

  SKF

• Cam Followers

  NUKRE 90 A

  Model: NUKRE 90 A

  Eccentric cam follower with collar, outer diameter approx. 90 mm class.

  SKF

• Cam Followers

  KRE 90 PPA

  Model: KRE 90 PPA

  Eccentric cam follower in the 90 mm outer diameter class.

  SKF

• Cam Followers

  PWKR 90.2RS

  Model: PWKR 90.2RS

  Sealed cam follower in the 90 mm outer diameter class.

  SKF

• Cam Followers

  NUKR 90 A

  Model: NUKR 90 A

  Solid outer ring cam follower, approx. 90 mm outside diameter class.

  SKF

• Cam Followers

  KRV 90 PPA

  Model: KRV 90 PPA

  High-load cam follower with an outer diameter of approximately 90 mm.

  SKF

• Cam Followers

  KR 90 PPA

  Model: KR 90 PPA

  Standard cam follower, approx. 90 mm outside diameter.

  SKF

• Cam Followers

  PWKRE 80.2RS

  Model: PWKRE 80.2RS

  Eccentric sealed cam follower in the approximately 80 mm outer diameter class.

  SKF

• Cam Followers

  KRE 72 PPA

  Model: KRE 72 PPA

  Eccentric cam follower with an outside diameter of approximately 72 mm.

  SKF

• Cam Followers

  KR 80 PPA

  Model: KR 80 PPA

  Standard cam follower with an outside diameter of approximately 80 mm.

  SKF

• Cam Followers

  KRV 80 PPA

  Model: KRV 80 PPA

  High-load cam follower in the outer diameter 80 mm class.

  SKF

• Cam Followers

  NUKR 80 A

  Model: NUKR 80 A

  Solid outer ring cam follower with an outside diameter of approximately 80 mm.

  SKF

• Cam Followers

  KRE 80 PPA

  Model: KRE 80 PPA

  Eccentric cam follower with an outer diameter of approximately 80 mm.

  SKF

• Cam Followers

  NUKRE 80 A

  Model: NUKRE 80 A

  Eccentric cam follower with collar, outer diameter class 80 mm.

  SKF

• Cam Followers

  PWKR 80.2RS

  Model: PWKR 80.2RS

  Sealed cam follower with an outer diameter of approximately 80 mm.

  SKF

• Cam Followers

  NUKR 72 A

  Model: NUKR 72 A

  Solid-type outer ring cam follower, outside diameter class 72 mm.

  SKF

• Cam Followers

  PWKR 72.2RS

  Model: PWKR 72.2RS

  Sealed cam follower in the 72 mm outer diameter class.

  SKF

• Cam Followers

  NUKRE 72 A

  Model: NUKRE 72 A

  Eccentric cam follower with collar, outer diameter approx. 72 mm class.

  SKF

• Cam Followers

  PWKRE 72.2RS

  Model: PWKRE 72.2RS

  Eccentric sealed cam follower in the 72 mm outer diameter class.

  SKF

• Cam Followers

  KR 72 PPA

  Model: KR 72 PPA

  Standard cam follower in the 72 mm outside diameter class.

  SKF

• Cam Followers

  KRV 72 PPA

  Model: KRV 72 PPA

  High-load cam follower with an outer diameter class of 72 mm.

  SKF

• Cam Followers

  KRE 62 PPA

  Model: KRE 62 PPA

  Eccentric cam follower with an outer diameter of approximately 62 mm.

  SKF

• Cam Followers

  KRV 62 PPA

  Model: KRV 62 PPA

  High load capacity cam follower in the outer diameter 62 mm class.

  SKF

• Cam Followers

  KR 62 PPA

  Model: KR 62 PPA

  Standard cam follower in the 62 mm outer diameter class.

  SKF

• Cam Followers

  PWKRE 62.2RS

  Model: PWKRE 62.2RS

  Eccentric sealed cam follower, outer diameter class 62 mm.

  SKF

• Cam Followers

  NUKRE 62 A

  Model: NUKRE 62 A

  Eccentric cam follower (with collar), approx. 62 mm outer diameter class.

  SKF

• Cam Followers

  PWKR 62.2RS

  Model: PWKR 62.2RS

  Sealed cam follower in the 62 mm outer diameter class.

  SKF

• Cam Followers

  NUKRE 52 A

  Model: NUKRE 52 A

  Eccentric-type cam follower with collar, approx. 52 mm outer diameter class.

  SKF

• Cam Followers

  NUKR 62 A

  Model: NUKR 62 A

  Solid outer ring cam follower, outer diameter class 62 mm.

  SKF

• Cam Followers

  PWKRE 52.2RS

  Model: PWKRE 52.2RS

  Eccentric sealed cam follower in the 52 mm outer diameter class.

  SKF

• Cam Followers

  KRE 52 PPA

  Model: KRE 52 PPA

  Eccentric cam follower with an outer diameter in the 52 mm class.

  SKF

• Cam Followers

  PWKR 52.2RS

  Model: PWKR 52.2RS

  Sealed cam follower, outer diameter class 52 mm.

  SKF

• Cam Followers

  NUKR 52 A

  Model: NUKR 52 A

  Solid outer ring cam follower, outer diameter class 52 mm.

  SKF

• Cam Followers

  KRV 52 PPA

  Model: KRV 52 PPA

  High load capacity cam follower with an outer diameter class of 52 mm.

  SKF

• Cam Followers

  KR 52 PPA

  Model: KR 52 PPA

  Standard cam follower with an outer diameter of approximately 52 mm.

  SKF

• Cam Followers

  PWKRE 47.2RS

  Model: PWKRE 47.2RS

  Eccentric sealed cam follower in the 47 mm outer diameter class.

  SKF

• Cam Followers

  NUKRE 47 A

  Model: NUKRE 47 A

  Eccentric cam follower (with collar) in the 47 mm outer diameter class.

  SKF

• Cam Followers

  KRE 47 PPA

  Model: KRE 47 PPA

  Eccentric cam follower with an outer diameter in the 47 mm class.

  SKF

• Cam Followers

  PWKR 47.2RS

  Model: PWKR 47.2RS

  Sealed cam follower in the 47 mm outer diameter class.

  SKF

• Cam Followers

  KRE 40 PPA

  Model: KRE 40 PPA

  Eccentric cam follower with an outside diameter in the 40 mm class.

  SKF

• Cam Followers

  NUKRE 40 A

  Model: NUKRE 40 A

  Eccentric cam follower with collar, outer diameter class 40 mm.

  SKF

• Cam Followers

  PWKRE 40.2RS

  Model: PWKRE 40.2RS

  Eccentric sealed cam follower in the 40 mm outer diameter class.

  SKF

• Cam Followers

  KRV 47 PPA

  Model: KRV 47 PPA

  High-load cam follower with an outer diameter of approximately 47 mm.

  SKF

• Cam Followers

  NUKR 47 A

  Model: NUKR 47 A

  Solid-outer-ring cam follower, outer diameter class 47 mm.

  SKF

• Cam Followers

  KR 47 PPA

  Model: KR 47 PPA

  Standard cam follower with an outside diameter class of 47 mm.

  SKF

• Cam Followers

  NUKRE 35 A

  Model: NUKRE 35 A

  Eccentric cam follower with collar, outer diameter class 35 mm.

  SKF

• Cam Followers

  KRE 35 PPA

  Model: KRE 35 PPA

  Eccentric cam follower (outer diameter 35 mm class).

  SKF

• Cam Followers

  PWKRE 35.2RS

  Model: PWKRE 35.2RS

  Eccentric sealed cam follower in the outer diameter 35 mm class.

  SKF

How to choose Cam Followers

1. 1. Select outer diameter to suit surface and load

   The outer diameter D is the basic dimension that determines the surface pressure on the mating contact surface and the required installation space. Listed products range from 16 to 52 mm. A larger outer diameter lowers the surface pressure and reduces wear on the mating surface. Determine it by checking against the dimensions of the cam groove or rail.

2. 2. Verify life with dynamic load rating

   The basic dynamic load rating Cr is the reference value for life calculation. Listed products range from 9 to 78 kN. Even with the same outer diameter, full-complement and high-load types have a higher Cr. Select by calculating the required life from the actual load and rotational speed. If shock loads are present, also check the basic static load rating C0r.

3. 3. Choose between cylindrical and crowned outer ring

   A crowned (spherical) outer ring reduces edge loading caused by mounting errors and suppresses stress concentration at the outer ring ends. A cylindrical outer ring has a longer contact length and is a shape that easily lowers the surface pressure on the mating surface. Select according to the accuracy of the mating surface and the mounting accuracy.

4. 4. Confirm mounting with stud diameter and thread

   The stud diameter d and thread designation determine the machining dimensions of the mounting hole and the tightening torque. If the threaded portion is too long, it may not pass through the frame, so check the frame plate thickness and nut position together with the overall length B.

5. 5. Select eccentric type when position adjustment is required

   With the eccentric stud type, turning the stud shifts the roller position, so the contact and clearance of multiple rollers can be adjusted after assembly. The eccentricity of listed products ranges from 0.25 to 1 mm. Confirm that the required adjustment allowance falls within this range.

6. 6. Use sealed type in dust and cutting fluid environments

   In environments exposed to dust, cutting fluid, or moisture, selecting a sealed type such as 2RS helps suppress foreign matter ingress and grease leakage. Unsealed types have lower rotational resistance, but they require a maintenance plan such as periodic lubrication through the grease hole.

This guide was written by AI based on the listed products' documents and specification items. Check each manufacturer's documents before adopting.