The NTN 6311ZNR is a high-quality single row deep groove ball bearing designed for various industrial and agricultural applications. This genuine NTN bearing features a 55 mm bore, 120 mm outer diameter, and 29 mm width. The 'Z' designation indicates a single metal shield on one side, providing protection against contaminants, while 'NR' signifies a snap ring groove with a snap ring on the outer ring for axial location. Known for its durability and reliable performance, this bearing is suitable for environments requiring robust and efficient rotational support.