Gearbelt Pulley, Bore Diameter 1 in, For Belt Series SilentSync, For Belt Width 52.5 mm, For Use With SilentSync Green Belts, Material Ductile Iron, Number of Teeth 56, Outside Diameter 246.77 mm, Pitch 14 mm, Pitch Diameter 249.56 mm, Bore Type Plain, Face Width 54 1/2 mm, Features Self-Tracking Design, For Belt Trade Size G-56S, Keyway No, Keyway Depth Not Applicable, Keyway Width Not Applicable, Length through Bore 37 mm, Material Fabrication Machined