Synchronous Pulley; 12MM Belt Width; 8 MM Belt Pitch; 8M-12 Belt Style; 71 Teeth; 14.478MM Face Width; Bushed; 179.197MM Outside Diameter; 180.797MM Pitch Diameter; Yes Keyway; 18 To 48MM Bushing Bore Range; 2012 Bushing; No Minimum Plain Bore