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

Roller Chain Sprocket; 2" Bore; 80 Chain; 57 Teeth; 1 Row of Teeth; No 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; Steel Material

Roller Chain Sprocket; 20B-2 Chain; 57 Teeth; 2 Row of Teeth; No Hardened Teeth; 594.512MM Outside Diameter; 576.35MM Pitch Diameter; C-Hub Both Sides; Rough Bore Mount; No Bushing; 31.75MM Chain Pitch; ISO Roller Chain; No Keyway; Steel Material

Roller Chain Sprocket; 1-5/8" Bore; 80 Chain; 57 Teeth; 1 Row of Teeth; No 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; Steel Material

Roller Chain Sprocket; 1-1/8" Bore; 40 Chain; 57 Teeth; 1 Row of Teeth; No Hardened Teeth; 9.362" Outside Diameter; 9.077" Pitch Diameter; B-Hub One Side; Finished Bore Mount; No Bushing; 1/2" Chain Pitch; ANSI Roller Chain; Keyway; Steel Material