Compensates for shaft misalignment through a self-aligning outer ring seat, running directly on a hardened and ground shaft since no inner ring is fitted. The outside diameter is 55.0 mm, net mass 132.2 g, and the limiting speed reaches 11400.0 1/min. Because the bearing has no inner ring, the shaft surface itself must meet the required hardness and grinding tolerances to serve as the raceway, which keeps the assembly compact and reduces radial space needed for the bearing. The self-aligning outer ring allows the bearing to accommodate angular deviation between housing and shaft, making it suitable for mounting positions where perfect alignment cannot be guaranteed. Lubrication and sealing are handled externally by the housing design, so the surrounding construction determines grease or oil supply and contamination protection.