4 Inch Jackshaft Kit with 12 Tooth and 17 Tooth Sprockets for #41 and #420 Chain
Weld-on jackshaft kit with 12-tooth and 17-tooth sprockets for a 41.7% increase or decrease in gear ratio. 4-1/2" long x 5/8" OD jackshaft with keyway, 10-tooth and 17-tooth sprockets with keyways, two keys, two precision sealed ball bearings with snap rings, two weld-on steel bearing hangers, and two jackshaft collars with set screws. This is a complete kit that contains everything needed to install a weld-on jackshaft.