170MM Belt Width; 20MM Belt Pitch; 20M-170 Synchronous Plus Belt Style; 38 Teeth; 181.102MM Face Width; Bushed; 264.922MM Flange OD; 237.592MM OD; 241.91MM Pitch Diam; Keyway; 36.513 To 114.3MM Bushing Bore Range; J Bushing; No Minimum Plain Bore