Synchronous Pulley; 1-1/2" Belt Width; 1/2 Inch Belt Pitch; H Belt Style; 20 Teeth; 1-13/16" Face Width; Bushed; 3-7/16" Flange OD; 3.129" Outside Diameter; 3.183" Pitch Diameter; Yes Keyway; 1/2 To 1-1/4" Bushing Bore Range; 1215 Bushing; No Minimum Plain Bore