Cam rollers are non - separable radial bearings. They are special variants of either radial deep groove ball bearings or double row angular contact ball bearings.

Cam rollers run either directly on a guide track or against a surface that has been machined for a guidance.

To achieve this cam rollers feature an extra thick - walled outer ring this enables cam rollers to accept high radial forces, including shock loads.

As cam rollers often run misaligned they are generally used with crowned outer ring surfaces.

Cam rollers normally run outside the machine compartment, under extreme operating conditions, in the presence of heavy contaminations (i.e. dust and Urt, etc.).

For this reason, cam rollers are produced and fitted with contacting seals.

Some types of the Double Row cam rollers are also available with shields.