Roller Chain Sprocket; 28B-1 Chain; 57 Teeth; 1 Row of Teeth; Hardened Teeth; 832.333MM Outside Diameter; 806.89MM Pitch Diameter; A-No Hub; Rough Bore Mount; No Bushing; 44.45MM Chain Pitch; ISO Roller Chain; No Keyway; Carbon Steel Material

Roller Chain Sprocket; 12B-1 Chain; 57 Teeth; 1 Row of Teeth; Hardened Teeth; 356.718MM Outside Diameter; 345.81MM Pitch Diameter; B-Hub One Side; Rough Bore Mount; No Bushing; 19.05MM Chain Pitch; ISO Roller Chain; No Keyway; Carbon Steel Material

Roller Chain Sprocket; 1-3/4" Bore; 80 Chain; 57 Teeth; 1 Row of Teeth; Hardened Teeth; 18.725" Outside Diameter; 18.153" Pitch Diameter; B-Hub One Side; Finished Bore Mount; No Bushing; 1" Chain Pitch; ANSI Roller Chain; Keyway; Carbon Steel Material

Roller Chain Sprocket; 2-3/16" Bore; 80 Chain; 57 Teeth; 1 Row of Teeth; Hardened Teeth; 18.725" Outside Diameter; 18.153" Pitch Diameter; B-Hub One Side; Finished Bore Mount; No Bushing; 1" Chain Pitch; ANSI Roller Chain; Keyway; Carbon Steel Material

Roller Chain Sprocket; 40 Chain; 57 Teeth; 1 Row of Teeth; Hardened Teeth; 9.362" Outside Diameter; 9.077" Pitch Diameter; A-No Hub; Rough Bore Mount; No Bushing; 1/2" Chain Pitch; ANSI Roller Chain; No Keyway; Carbon Steel Material