115MM Belt Width; 20MM Belt Pitch; 20M-115 Synchronous Plus Belt Style; 44 Teeth; 127MM Face Width; Bushed; 299.974MM Flange OD; 275.793MM OD; 280.111MM Pitch Diam; Keyway; 25.4 To 101.6MM Bushing Bore Range; F Bushing; No Minimum Plain Bore