36MM Belt Width; 8MM Belt Pitch; 8M-36 Poly Chain GT2 Belt Style; 28 Teeth; 40.132MM Face Width; Rough Bore; 81.534MM Flange OD; 69.698MM OD; 71.298MM Pitch Diam; No Keyway; No Bushing; Minimum Plain Bore; 1.75" Max Bore