Gearbelt Pulley For Belt Series SilentSync For Belt Width 52 1/2 mm For Bushing Size SK Material Steel Number of Teeth 32 Outside Diameter 139.8 mm Pitch 14 mm Pitch Diameter 142.61 mm Face Width 54.5 mm Features Self-Tracking Design Number of Flanges 0 Overall Width 54.5 mm Pulley Construction Plain