A-40105-AI Disc Harrow BrgOne New Aftermarket Replacement Disc Harrow Bearing for John Deere, Kuhn Krause, Case IH, New Holland, AGCO, Farmhand, Sunflower, and Landoll Disc Harrows This round bore disc harrow bearing (GW209PPB4 series) mounts on the disc axle shaft and supports the disc gang assembly during tillage operations. It features dual triple lip contact seals to keep dirt and debris out of the bearing, and is relubricable for extended service life in demanding