Attributes . 60-2 Chain; 42 Teeth; 2 Rows of Teeth; Hardened Teeth; 10.458" Outside Dia; 10.037" Pitch Dia; B-Hub One Side; Rough Bore Mount; 3/4" Chain Pitch; ANSI Roller Chain Type; No Keyway; Carbon Steel Material; 3-1/4" Max Bore . Names