This self-aligning ball bearing carries two rows of balls running on a spherical outer raceway, allowing the outer ring to tilt relative to the inner ring and the shaft. Bore diameter is 20.0 mm, outside diameter 52.0 mm, width 21.0 mm, and net mass is 0.212 kg. The bearing is fitted with a solid plastic cage (TVH) and seals on both sides (2RS), radial internal clearance falls within the CN (Group N) range, and the limiting speed is 9400 1/min. The spherical raceway design compensates for shaft misalignment and housing deflection without introducing additional load on the balls, which is useful where perfect shaft-housing alignment cannot be guaranteed. The two-sided seals keep grease in and contaminants out, so the bearing runs sealed-for-life without need for external relubrication under normal operating conditions. The plastic cage reduces friction and mass compared to a pressed-steel cage, supporting smooth operation up to the stated limiting speed while the CN clearance provides standard running clearance for general mounting conditions.