A cam follower, also known as a track follower, is a specialized type of roller or needle bearing designed to follow cam lobe profiles. Cam followers come in a vast array of different configurations, however the most defining characteristic is how the cam follower mounts to its mating part; stud style cam followers use a stud while the yoke style has a hole through the middle. Specifications Roller Diameter (inch): 3. Bearing Material: 52100 Bearing steel. Thread Type: UNC. Sealing: Sealed. Bearing Type: Cam Follower. O.D. Configuration: Cylindrical. Hex/Slot: Hex Hole. Adjustment: None. Rolling Element: Needle Roller. Stud Material: 8620H Steel. Basic Dynamic Rating: 15720. Precision Rating: P0 Equivalent. Outside Ring Shape: Cylindrical. Clamping Torque: 3450. Dynamic Radial Rating: 15720. Limiting Speed: 950. Static Load Limit: 18000.