37MM Belt Width; 14MM Belt Pitch; 14M-37 Poly Chain GT2 Belt Style; 39 Teeth; 44.196MM Face Width; Bushed; 191.008MM Flange OD; 170.993MM OD; 173.787MM Pitch Diam; Keyway; 22.225 To 82.55MM Bushing Bore Range; 3020 Bushing; No Minimum Plain Bore

21MM Belt Width; 8MM Belt Pitch; 8M-21 Poly Chain GT2 Belt Style; 39 Teeth; 23.368MM Face Width; Bushed; 112.014MM Flange OD; 97.714MM OD; 99.314MM Pitch Diam; Keyway; 12.7 To 42.863MM Bushing Bore Range; 1610 Bushing; No Minimum Plain Bore

Synchronous Pulley; 37MM Belt Width; 14 MM Belt Pitch; 14M-37 Belt Style; 39 Teeth; 1.74MM Face Width; Bushed; 6.732MM Outside Diameter; 6.842MM Pitch Diameter; Yes Keyway; 3020 Bushing; No Minimum Plain Bore

Synchronous Pulley; 37MM Belt Width; 14MM Belt Pitch; 14MX-37 Belt Style; 39 Teeth; 52.324MM Face Width; Bushed; 190.957MM Flange OD; 170.993MM OD; 173.787MM Pitch Diameter; Yes Keyway; 24 To 80MM Bushing Bore Range; 3020 Bushing; No Minimum Plain Bore

90MM Belt Width; 14MM Belt Pitch; 14M-90 Poly Chain GT2 Belt Style; 39 Teeth; 98.552MM Face Width; Rough Bore; 191.008MM Flange OD; 170.993MM OD; 173.787MM Pitch Diam; No Keyway; No Bushing; Minimum Plain Bore; 4.375" Max Bore