The NKE 6311-2Z-C3 is a genuine NKE single row deep groove ball bearing, designed for high-speed applications. It features a 55mm bore diameter, 120mm outer diameter, and a 29mm width. This bearing is equipped with two metal shields (2Z) on both sides to protect against contaminants and retain lubricant, ensuring extended service life. It also has C3 radial internal clearance, making it suitable for applications where higher operating temperatures or shaft expansion are expected. Manufactured by NKE Austria GmbH, this bearing provides reliable performance in various industrial and machinery applications.