12MM Belt Width; 8MM Belt Pitch; 8M-12 Poly Chain GT2 Belt Style; 35 Teeth; 20.32MM Face Width; Bushed; 96.647MM Flange OD; 87.528MM OD; 89.129MM Pitch Diam; Keyway; 12.7 To 42.863MM Bushing Bore Range; 1610 Bushing; No Minimum Plain Bore