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).
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Cam Followers
KR 40 PPA
Model: KR 40 PPA
Standard cam follower in the 40 mm outer diameter class.
SKF
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Cam Followers
KRV 40 PPA
Model: KRV 40 PPA
High load capacity cam follower in the outer diameter 40 mm class.
SKF
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Cam Followers
NUKR 40 A
Model: NUKR 40 A
Solid outer ring cam follower with an outer diameter in the 40 mm class.
SKF
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Cam Followers
PWKR 40.2RS
Model: PWKR 40.2RS
Sealed cam follower in the outer diameter 40 mm class.
SKF
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Cam Followers
PWKR 35.2RS
Model: PWKR 35.2RS
Sealed cam follower, approx. 35 mm outer diameter class, without collar.
SKF
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Cam Followers
NUKR 35 A
Model: NUKR 35 A
Solid outer ring cam follower in the 35 mm outside diameter class, with collar and high dynamic load rating.
SKF
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Cam Followers
KRV 35 PPA
Model: KRV 35 PPA
Cam follower with higher load capacity than the KR series, outer diameter 35 mm class.
SKF
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Cam Followers
KR 35 B / KR 35 PPA
A cam follower with an outer ring that rolls, a machine element for which the basic load rating and limiting rotational speed are specified for each bearing number.
SKF
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Cam Followers
Cam Followers (KR/KRV/KRE/NUKR/PWKR)
Cam followers with outer diameters of 16 to 52 mm. Series include KR, KRV, KRE, NUKR, PWKR and others.
SKF
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Cam Followers
Cam Follower for Index Drives
A precision cam follower with full-complement roller design for long life, used in roller cam mechanisms for intermittent index drives in automated machinery.
NTN Corporation
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Cam Followers
Cam Follower (Eccentric Shaft, with Tapped Hole)
Cam follower with an eccentric shaft that simplifies adjustment of the mounting position, and a tapped hole for grease lubrication.
NTN Corporation
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Cam Followers
New Standard Cam Follower
Cam follower with special heat treatment of rollers and high-performance grease that improve rolling fatigue life and low-temperature starting torque performance. Interchangeable with conventional products.
NTN Corporation
How to choose Cam Followers
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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.
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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.
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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.
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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.
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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.
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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.