21MM Belt Width; 8MM Belt Pitch; 8M-21 Poly Chain GT2 Belt Style; 63 Teeth; 23.368MM Face Width; Bushed; 170.688MM Flange OD; 158.826MM OD; 160.426MM Pitch Diam; Keyway; 12.7 To 53.975MM Bushing Bore Range; 2012 Bushing; No Minimum Plain Bore

68MM Belt Width; 14MM Belt Pitch; 14M-68 Poly Chain GT2 Belt Style; 63 Teeth; 76.454MM Face Width; Bushed; 294.386MM Flange OD; 277.952MM OD; 280.746MM Pitch Diam; Keyway; 30.163 To 100.013MM Bushing Bore Range; 3525 Bushing; No Minimum Plain Bore

37MM Belt Width; 14MM Belt Pitch; 14M-37 Poly Chain GT2 Belt Style; 63 Teeth; 44.196MM Face Width; Bushed; 294.386MM Flange OD; 277.952MM OD; 280.746MM Pitch Diam; Keyway; 30.163 To 100.013MM Bushing Bore Range; 3525 Bushing; No Minimum Plain Bore