21MM Belt Width; 8MM Belt Pitch; 8M-21 Poly Chain GT2 Belt Style; 71 Teeth; 23.368MM Face Width; Bushed; 190.5MM Flange OD; 179.197MM OD; 180.797MM Pitch Diam; Keyway; 12.7 To 68.263MM Bushing Bore Range; 2517 Bushing; No Minimum Plain Bore

Synchronous Pulley; 20MM Belt Width; 14 MM Belt Pitch; 14M-20 Belt Style; 71 Teeth; 34.544MM Face Width; Bushed; 313.614MM Outside Diameter; 316.408MM Pitch Diameter; Yes Keyway; 3525 Bushing; No Minimum Plain Bore

Synchronous Pulley; 12MM Belt Width; 8MM Belt Pitch; 8MX-12 Belt Style; 71 Teeth; 21.59MM Face Width; Bushed; 190.5MM Flange OD; 179.197MM OD; 180.797MM Pitch Diameter; Yes Keyway; 14 To 48MM Bushing Bore Range; 2012 Bushing; No Minimum Plain Bore

Synchronous Pulley; 68MM Belt Width; 14MM Belt Pitch; 14MX-68 Belt Style; 71 Teeth; 84.582MM Face Width; Bushed; 331.876MM Flange OD; 313.614MM OD; 316.408MM Pitch Diameter; Yes Keyway; 3525 Bushing; No Minimum Plain Bore

Synchronous Pulley; 36MM Belt Width; 8 MM Belt Pitch; 8M-36 Belt Style; 71 Teeth; 40.132MM Face Width; Bushed; 179.197MM Outside Diameter; 180.797MM Pitch Diameter; Yes Keyway; 18 To 55MM Bushing Bore Range; 2517 Bushing; No Minimum Plain Bore