A-87360635-AI Bearing, Ball, Lower, Cutter Bar, For Gear W/ Splined ShaftOne New Aftermarket Replacement Ball Bearing, Lower Cutter Bar, for New Holland and Case IH Disc Mowers This lower cutter bar ball bearing is designed for the gear assembly with a splined shaft on New Holland (Ford New Holland) and Case IH rotary disc mowers. The bearing sits at the lower position of the cutter bar gear housing, supporting the splined drive shaft and maintaining precise alignment under the high load, high cycle demands of hay cutting