The McCormick 3140666R91 Bearing is a genuine OEM ball bearing designed for various McCormick tractor models, including the CX, MC, MTX, XTX, and ZTX series. This essential component features an inner diameter of 40mm, an outer diameter of 80mm, and a thickness of 18mm, with a weight of approximately 0.16 kg. It ensures smooth operation and durability in demanding agricultural applications. This part is also cross-referenced as an OEM part for Case IH and International Harvester equipment.