Roller Chain Sprocket; 3/4" Bore; 25 Chain; 32 Teeth; 1 Row of Teeth; No Hardened Teeth; 2-11/16" Outside Diameter; 2.551" Pitch Diameter; B-Hub One Side; Finished Bore Mount; No Bushing; 1/4" Chain Pitch; ANSI Roller Chain; Keyway; Steel Material