QJ. N2 with keyway

The QJ ・ N2 type is a specially designed four point contact ball bearing with keyway. The suffix N2 represents the outer ring with a single-sided keyway and a stop ring groove. The core is a four point contact ball structure, which can withstand bidirectional axial loads and radial loads. A single set of bearings can achieve bidirectional axial positioning of the shaft system. The keyway design can effectively prevent relative rotation between the outer ring and the bearing seat, and is suitable for high-speed, heavy-duty, and precision transmission scenarios that require anti slip of the outer ring. It is the core precision support choice for machine tool spindles, reducers, wind turbine gearboxes, and other equipment.