Synchronous Pulley; 20MM Belt Width; 8MM Belt Pitch; 8M-20 Belt Style; 26 Teeth; 28.575MM Face Width; Bushed; 73.8MM Flange OD; 64.846MM OD; 66.218MM Pitch Diameter; Yes Keyway; 19 To 22MM Bushing Bore Range; JA Bushing; No Minimum Plain Bore