Synchronous Pulley; 20MM Belt Width; 8MM Belt Pitch; 8M-20 Belt Style; 40 Teeth; 28.702MM Face Width; Bushed; 110.007MM Flange OD; 100.482MM OD; 101.854MM Pitch Diameter; Yes Keyway; 14 To 42MM Bushing Bore Range; 1610 Bushing; No Minimum Plain Bore