Attribute Value: 100 Chain; 48 Teeth; 1 Row of Teeth; No Hardened Teeth; 19.821" Outside Dia; 19.113" Pitch Dia; B-Hub One Side; Bushed Mount; 3020 Bushing; 1-1/4" Chain Pitch; ANSI Roller Chain Type; Keyway; Steel Material . Names (Page 1)