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

68MM Belt Width; 14MM Belt Pitch; 14M-68 Poly Chain GT2 Belt Style; 71 Teeth; 76.454MM Face Width; Bushed; 331.978MM Flange OD; 313.614MM OD; 316.408MM Pitch Diam; Keyway; 30.163 To 100.013MM Bushing Bore Range; 3525 Bushing; No Minimum Plain Bore

Synchronous Pulley; 12MM Belt Width; 8 MM Belt Pitch; 8M-12 Belt Style; 71 Teeth; 21.59MM Face Width; Bushed; 179.2MM Outside Diameter; 180.8MM Pitch Diameter; Yes Keyway; 2012 Bushing; No Minimum Plain Bore

90MM Belt Width; 14MM Belt Pitch; 14M-90 Poly Chain GT2 Belt Style; 71 Teeth; 98.552MM Face Width; Bushed; 331.978MM Flange OD; 313.614MM OD; 316.408MM Pitch Diam; Keyway; 36.513 To 112.713MM Bushing Bore Range; 4030 Bushing; No Minimum Plain Bore

12MM Belt Width; 8MM Belt Pitch; 8M-12 Poly Chain GT2 Belt Style; 71 Teeth; 14.478MM Face Width; Bushed; 190.5MM Flange OD; 179.197MM OD; 180.797MM Pitch Diam; Keyway; 12.7 To 53.975MM Bushing Bore Range; 2012 Bushing; No Minimum Plain Bore