5/8" Bore Sprocket for #40/41/420 Chain 14 Tooth without Keystock
5/8" Bore B Type Engine Sprocket for Jackshafts. B Type sprockets have a hub on one side. Keyways are 3/16". B sprockets have (2) 5/16-18 set screws. #40/41/420 Chain 14 Tooth No Keystock