SB204 Ball Bearing Insert 20mm ID - Set Screw LockingSB204 Ball Bearing Insert 20mm ID Set Screw Locking 47mm OD Insert Style The SB204 is a ball bearing insert with a 20mm bore and integrated set screws for easy shaft mounting. Designed to fit into standard housings, it's ideal for use in conveyors, agricultural equipment, and industrial machinery requiring secure, replaceable bearing support. Type: Ball bearing insert (with set screws) Inner diameter (d): 20mm Outer diameter (D): 47mm Inner ring width