Synchronous Pulley; 1" Belt Width; 3/8 Inch Belt Pitch; L Belt Style; 28 Teeth; 1-1/4" Face Width; Bushed; 3-37/64" Flange OD; 3-5/16" Outside Diameter; 3.342" Pitch Diameter; Yes Keyway; 1/2 To 1-5/8" Bushing Bore Range; 1610 Bushing; No Minimum Plain Bore