Roller Chain Sprocket; 3/4" Bore; 40 Chain; 12 Teeth; 1 Row of Teeth; No Hardened Teeth; 2.166" Outside Diameter; 1.932" Pitch Diameter; B-Hub One Side; Finished Bore Mount; No Bushing; 1/2" Chain Pitch; ANSI Roller Chain; Keyway; Steel Material

Roller Chain Sprocket; 1-1/8" Bore; 40 Chain; 12 Teeth; 1 Row of Teeth; Hardened Teeth; 2.166" Outside Diameter; 1.932" Pitch Diameter; A-No Hub; Finished Bore Mount; No Bushing; 1/2" Chain Pitch; ANSI Roller Chain; No Keyway; Steel Material