Single row angular contact ball bearing 71810-TN takes up combined radial and axial loads acting in one direction due to its contact angle design. Bore diameter is 50.0 mm, outside diameter 65.0 mm, width 7.0 mm, and net mass 0.054 kg. The bearing runs with a plastic cage (TVP), permitting a limiting speed of 12900 1/min and a reference speed of 5400 1/min. The plastic cage keeps ball guidance smooth at higher speeds and reduces friction compared to solid cage designs, supporting operation close to the limiting speed value without added lubrication demands. Given the narrow 7.0 mm width and single-direction axial capacity, this 71810-TN bearing suits arrangements where axial load acts from one side only, often paired with a second angular contact bearing for opposed mounting to handle load in both directions.