National Hardware N280-537 V7633 Pulleys in Galvanized, 4"
This pulley unit comes factory lubricated and includes the pulley, axle bolt and nut and can be used to replace either the stationary or the spring pulley on most two car residential garage doors with extension springs. It features a galvanized finish and rotates on 10 ball bearings for smooth, long lasting performance. Use for stationary or spring pulley on two car residential garage doors and tandem spring applications.