Synchronous Pulley; 52.5MM Belt Width; 14 Millimeter Belt Pitch; 14M-52.5 Belt Style; 28 Teeth; 54.508MM Face Width; Rough Bore; 121.971MM OD; 124.765MM Pitch Diam; No Keyway; No Bushing; Yes Minimum Plain Bore; 2.688" Max Bore