This angular contact ball bearing is a double row, self-retaining design with a particularly thick-walled outer ring, providing axial guidance through the ball set rather than a flange. The inner ring has a bore diameter of 20.0 mm, the outer ring an outside diameter of 52.0 mm, and overall height is 20.6 mm; net mass is 0.211 kg. The cage is designated TVH, made from glass fibre reinforced polyamide, and sealing is of the 2HRS type with lip seals on both sides featuring optimised geometry for low friction. The thick-walled outer ring allows the bearing to run directly as a track roller element under contact loading, with the ball and cage assembly guiding the outer ring axially against the raceway. The two-sided lip seal design keeps contamination out while maintaining low running friction, and the polyamide cage contributes to smooth operation at the stated dimensions. The X-life design of this LR5204-2HRS-TVH-XL bearing reflects a refined internal geometry intended to make full use of the load zone within the given envelope, and a lubrication hole in the inner ring can be supplied on request for relubrication access.