21MM Belt Width; 8 Millimeter Belt Pitch; 8M-21 Belt Style; 42 Teeth; 24.638MM Face Width; Bushed; 124.714MM Flange OD; 105.35MM OD; 106.959MM Pitch Diam; Yes Keyway; 14 To 50MM Bushing Bore Range; 2012 Bushing; No Minimum Plain Bore

Roller Chain Sprocket; 40 Chain; 42 Teeth; 1 Row of Teeth; No Hardened Teeth; 6.972" Outside Diameter; 6.691" Pitch Diameter; A-No Hub; Rough Bore Mount; No Bushing; 1/2" Chain Pitch; ANSI Roller Chain; No Keyway; Steel Material

Roller Chain Sprocket; 60 Chain; 42 Teeth; 1 Row of Teeth; No Hardened Teeth; 10.458" Outside Diameter; 10.037" Pitch Diameter; B-Hub One Side; Bushed Mount; SF Bushing; 3/4" Chain Pitch; ANSI Roller Chain; Keyway; Steel Material

36MM Belt Width; 8MM Belt Pitch; 8M-36 Poly Chain GT2 Belt Style; 42 Teeth; 40.132MM Face Width; Bushed; 124.714MM Flange OD; 105.359MM OD; 106.959MM Pitch Diam; Keyway; 12.7 To 53.975MM Bushing Bore Range; 2012 Bushing; No Minimum Plain Bore

Roller Chain Sprocket; 2" Bore; 50 Chain; 42 Teeth; 1 Row of Teeth; Hardened Teeth; 8.715" Outside Diameter; 8.364" Pitch Diameter; A-No Hub; Finished Bore Mount; No Bushing; 5/8" Chain Pitch; ANSI Roller Chain; No Keyway; Steel Material