Cam followers (also known as track followers) are a specialised type of needle roller bearings designed to follow cams. Cam followers contain a solid pin (instead of an inner ring), that is threaded so the cam follower can be attached to machinery. Two types are avaliable:
- Single row cam followers
- Double row cam followers
Cam rollers (cam roller bearings) are based on deep groove ball bearings and feature a thick outer ring. Cam rollers are used in a wide variety of cam drives and conveyor systems. There are three main variations of internal constructions:
- Full compliment needle roller bearings
- Retainer type needle roller bearings
- Cyclindrical roller bearings