Synchronous Pulley; 50MM Belt Width; 8 Millimeter Belt Pitch; 8M-50 Belt Style; 34 Teeth; 53.975MM Face Width; Bushed; 95.25MM Flange OD; 85.22MM OD; 86.58MM Pitch Diam; Yes Keyway; 14 To 40MM Bushing Bore Range; SH Bushing; No Minimum Plain Bore

21MM Belt Width; 8MM Belt Pitch; 8M-21 Poly Chain GT2 Belt Style; 34 Teeth; 23.368MM Face Width; Bushed; 96.774MM Flange OD; 84.988MM OD; 86.589MM Pitch Diam; Keyway; 12.7 To 42.863MM Bushing Bore Range; 1610 Bushing; No Minimum Plain Bore