Industrial HR-2-1 4-XB Cam Follower from Smith, model HR-2-1, features a 4 in outer diameter and a 1/2 in bore. It is designed for cam-driven motion in industrial machinery, pairing with compatible cams and mounting components to follow a cam profile. The 4 in OD and 1/2 in bore define its size and interface for installation in suitable housings and track assemblies.
