Attributes . 60-2 Chain; 52 Teeth; 2 Rows of Teeth; Hardened Teeth; 12.849" Outside Dia; 12-27/64" 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