Roller Chain Sprocket; 140 Chain; 21 Teeth; 1 Row of Teeth; Hardened Teeth; 12.661" Outside Diameter; 11.743" Pitch Diameter; B-Hub One Side; Bushed Mount; 3020 Bushing; 1-3/4" Chain Pitch; ANSI Roller Chain; Keyway; Carbon Steel Material

Roller Chain Sprocket; 140 Chain; 21 Teeth; 1 Row of Teeth; Hardened Teeth; 12.661" Outside Diameter; 11.743" Pitch Diameter; B-Hub One Side; Rough Bore Mount; No Bushing; 1-3/4" Chain Pitch; ANSI Roller Chain; No Keyway; Carbon Steel Material

Roller Chain Sprocket; 140 Chain; 21 Teeth; 1 Row of Teeth; No Hardened Teeth; 12.661" Outside Diameter; 11.743" Pitch Diameter; A-No Hub; Rough Bore Mount; No Bushing; 1-3/4" Chain Pitch; ANSI Roller Chain; No Keyway; Steel Material

Roller Chain Sprocket; 3-7/16" Bore; 140 Chain; 21 Teeth; 1 Row of Teeth; Hardened Teeth; 12.661" Outside Diameter; 11.743" Pitch Diameter; C-Hub Both Sides; Finished Bore Mount; No Bushing; 1-3/4" Chain Pitch; ANSI Roller Chain; Keyway; Steel Material

Roller Chain Sprocket; 140 Chain; 21 Teeth; 1 Row of Teeth; Hardened Teeth; 12.661" Outside Diameter; 11.743" Pitch Diameter; B-Hub One Side; Bushed Mount; R1 Bushing; 1-3/4" Chain Pitch; ANSI Roller Chain; Keyway; Carbon Steel Material