Synchronous Pulley; 1/2" Bore; 1/2" Belt Width; 3/8 Inch Belt Pitch; L Belt Style; 12 Teeth; 3/4" Face Width; Finished Bore; 1-11/16" Flange OD; 1.402" Outside Diameter; 1.432" Pitch Diameter; No Keyway; No Bushing; No Minimum Plain Bore