Synchronous Pulley; 1-1/2" Belt Width; 1/2" Belt Pitch; H Belt Style; 40 Teeth; 1-13/16" Face Width; Rough Bore; 6.614" Flange OD; 6.472" OD; 6.366" Pitch Diameter; No Keyway; No Bushing; Yes Minimum Plain Bore; 1.766" Max Bore