Attribute Value: 60-2 Chain; 18 Teeth; 2 Rows of Teeth; Hardened Teeth; 4-45/64" Outside Dia; 4.319" Pitch Dia; A-No Hub; Bushed Mount; 2012 Bushing; 3/4" Chain Pitch; ANSI Roller Chain Type; Keyway; Steel Material . Names (Page 1)