Specs: ID: 5/8″. OD: 1 3/8″. Length: 2 11/16″. Includes 2 bushings & 1 roller bearing. 3 1/2″ overall with bushings.. Preferred by experienced mechanics for maintaining outdoor power equipment. Stens one-year warranty ensures reliability and performance for every part. Stens branded parts are trusted by professional dealers to perform OEM quality repairs.