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: 30 mm Roller width: 14 mm Stud diameter: 12 mm Stud length: 25 mm Roller shape: Crowned Roller material: Chrome Steel Bearing element: Needle Rollers Closure type: Sealed Head type: Hex Head Radial dynamic load capacity: 2140 lbf Radial static load capacity: 3300 lbf Maximum rpm: 4500 rpm Lubrication hole location: Head, Stud Side, Stud End Finish/coating: Uncoated