Pulley, Synchronous; 21MM Belt Width; 8 Millimeter Belt Pitch; 8M-21 Belt Style; 28 Teeth; 23.368MM Face Width; Rough Bore; 77MM Flange OD; 69.698MM Outside Diameter; 71.3MM Pitch Diameter; No Keyway; Minimum Plain Bore

Synchronous Pulley; 37MM Belt Width; 14 Millimeter Belt Pitch; 14M-37 Belt Style; 28 Teeth; 44.196MM Face Width; Bushed; 134MM Flange OD; 121.971MM Outside Diameter; 124.765MM Pitch Diameter; Keyway; 2012 Bushing; No Minimum Plain Bore

Pulley, Synchronous; 37MM Belt Width; 14 Millimeter Belt Pitch; 14M-37 Belt Style; 28 Teeth; 44.196MM Face Width; Rough Bore; 134MM Flange OD; 121.971MM Outside Diameter; 124.765MM Pitch Diameter; No Keyway; Minimum Plain Bore

85MM Belt Width; 14MM Belt Pitch; 14M-85 HawkPD Belt Style; 28 Teeth; 93.675MM Face Width; Bushed; 141.224MM Flange OD; 122.123MM OD; 124.765MM Pitch Diam; Keyway; 12.7 To 53.975MM Bushing Bore Range; 2012 Bushing; No Minimum Plain Bore

90MM Belt Width; 14MM Belt Pitch; 14M-90 BlackHawkPD Belt Style; 28 Teeth; 95.072MM Face Width; Rough Bore; 141.224MM Flange OD; 121.971MM OD; 124.765MM Pitch Diam; No Keyway; No Bushing; Minimum Plain Bore; 2.625" Max Bore