Roller Chain Sprocket; 60 Chain; 21 Teeth; 1 Row of Teeth; No Hardened Teeth; 5.426" Outside Diameter; 5.033" Pitch Diameter; A-No Hub; Rough Bore Mount; No Bushing; 3/4" Chain Pitch; ANSI Roller Chain; No Keyway; Steel Material

Roller Chain Sprocket; 60 Chain; 21 Teeth; 2 Row of Teeth; Hardened Teeth; 5.426" Outside Diameter; 5.033" Pitch Diameter; A-Double Single; Bushed Mount; 2517 Bushing; 3/4" Chain Pitch; ANSI Roller Chain; Keyway; Steel Material

Roller Chain Sprocket; 60 Chain; 21 Teeth; 1 Row of Teeth; Hardened Teeth; 5.426" Outside Diameter; 5.033" Pitch Diameter; B-Hub One Side; Bushed Mount; 2012 Bushing; 3/4" Chain Pitch; ANSI Roller Chain; Keyway; Steel Material