Synchronous Pulley; 21MM Belt Width; 8 Millimeter Belt Pitch; 8M-21 Belt Style; 25 Teeth; 23.368MM Face Width; Bushed; 67MM Flange OD; 62.052MM OD; 63.66MM Pitch Diam; Yes Keyway; 14 To 25MM Bushing Bore Range; 1108 Bushing; No Minimum Plain Bore