Roller Chain Sprocket; 40 Chain; 27 Teeth; 1 Row of Teeth; Hardened Teeth; 4-37/64" Outside Diameter; 4.307" Pitch Diameter; B-Hub One Side; Rough Bore Mount; No Bushing; 1/2" Chain Pitch; ANSI Roller Chain; No Keyway; Carbon Steel Material

Roller Chain Sprocket; 3/4" Bore; 40 Chain; 27 Teeth; 1 Row of Teeth; Hardened Teeth; 4-37/64" Outside Diameter; 4.307" Pitch Diameter; B-Hub One Side; Finished Bore Mount; No Bushing; 1/2" Chain Pitch; ANSI Roller Chain; Keyway; Carbon Steel Material

Roller Chain Sprocket; 1-1/4" Bore; 40 Chain; 27 Teeth; 1 Row of Teeth; Hardened Teeth; 4-37/64" Outside Diameter; 4.307" Pitch Diameter; B-Hub One Side; Finished Bore Mount; No Bushing; 1/2" Chain Pitch; ANSI Roller Chain; Keyway; Carbon Steel Material

Roller Chain Sprocket; 7/8" Bore; 40 Chain; 27 Teeth; 1 Row of Teeth; Hardened Teeth; 4-37/64" Outside Diameter; 4.307" Pitch Diameter; B-Hub One Side; Finished Bore Mount; No Bushing; 1/2" Chain Pitch; ANSI Roller Chain; Keyway; Carbon Steel Material

Roller Chain Sprocket; 40 Chain; 27 Teeth; 1 Row of Teeth; Hardened Teeth; 4-37/64" Outside Diameter; 4.307" Pitch Diameter; B-Hub One Side; Bushed Mount; 1610 Bushing; 1/2" Chain Pitch; ANSI Roller Chain; Keyway; Carbon Steel Material