Attribute Value: 100 Chain; 11 Teeth; 1 Row of Teeth; Hardened Teeth; 5.008" Outside Dia; 4-7/16" Pitch Dia; B-Hub One Side; Bushed Mount; 1615 Bushing; 1-1/4" Chain Pitch; ANSI Roller Chain Type; Keyway; Steel Material . Names (Page 1)