This angular contact ball bearing carries axial guidance of the outer ring through the balls, combining a double row ball and cage assembly with a particularly thick-walled outer ring and an inner ring. Bore diameter is 17.0 mm, outside diameter 52.0 mm, height 22.2 mm, and net mass 0.21 kg. The cage is made from glass fibre reinforced polyamide, designated TVH, and the bearing is sealed on both sides with lip seals of optimised geometry, marked 2HRS. The self-retaining design of inner and outer ring together with the thick-walled outer ring allows the bearing to run directly on a track surface while withstanding the radial and axial loads transmitted through the ball complement. The double-sided sealing reduces friction and limits contaminant ingress, while the glass fibre reinforced polyamide cage keeps mass low and supports smooth operation at the stated dimensions. The XL execution reflects an X-life design intended for consistent running behaviour within these size and mass parameters.