Synchronous Pulley; 1" Belt Width; 1/2" Belt Pitch; H Belt Style; 30 Teeth; 1-5/16" Face Width; Rough Bore; 5" Flange OD; 4.881" OD; 4.755" Pitch Diameter; No Keyway; No Bushing; Yes Minimum Plain Bore; 2-3/8" Max Bore