This bearing guides and supports rolling loads through a particularly thick-walled outer ring, functioning as a double row self-retaining angular contact ball bearing. Axial guidance of the outer ring is provided directly by the balls, while a ball and cage assembly runs on the inner ring. Bore diameter is 20.0 mm, outside diameter 52.0 mm, height 20.6 mm, net mass 0.23 kg. The cage is made from glass fibre reinforced polyamide (TVH), and shields on both sides (2Z) protect the raceway from contamination. The thick-walled outer ring gives the unit high load-carrying capacity for its size, and the self-retaining design keeps the ball and cage assembly captive on the inner ring during handling and mounting. The TVH cage allows higher running speeds and reduces friction compared with metal cages, while the double-side sealing (2Z) permits operation without additional external protection. The X-life design indicates optimized internal geometry and surface finish for the components. On request, a lubrication hole can be provided in the inner ring for relubrication during service.