This INA-FAG NO 51111NO is an aftermarket replacement thrust ball bearing, offering a high-quality, non-original alternative designed for compatibility with applications typically using the standard INA-FAG 51111 bearing. Engineered for reliable performance, this single direction axial ball bearing features precise dimensions of 55mm inner diameter, 78mm outer diameter, and 16mm width. It is specifically designed to accommodate axial loads in one direction, making it an ideal component for various industrial and agricultural machinery where a robust thrust bearing is required. As a non-OEM part, the 51111NO provides a cost-effective solution for maintenance and repair, ensuring smooth operation and durability without compromising essential functionality. This compatible axial bearing offers an excellent alternative for your machinery needs.