Attributes . 100 Chain; 96 Teeth; 1 Row of Teeth; Hardened Teeth; 38.934" Outside Dia; 38.204" Pitch Dia; C-Hub Both Sides; Rough Bore Mount; 1-1/4" Chain Pitch; ANSI Roller Chain Type; No Keyway; Carbon Steel Material; 5-1/4" Max Bore . Names