Cam followers and track rollers are types of bearings that convert rotating motion to linear motion by making contact with and following a cam or a track. Cam followers travel along a rotating projection on machinery and can handle high load and both symmetrical and elliptical motion. Track rollers follow a track and withstand light to moderate loads. Stud cam followers and rollers have a threaded stud that mounts to a mating part. Yoke cam followers and rollers have a hollow bore and press onto a stud shaft.