This single row angular contact ball bearing carries a 40° contact angle typical of the B design, with a 15.0 mm bore, 42.0 mm outside diameter, and 13.0 mm width. Net mass is 0.082 kg. The X-life designation indicates optimized internal geometry and rolling elements, and the bearing runs on a plastic TVP cage. Limiting speed is rated at 24400 1/min, with a reference speed of 14200 1/min. The single row angular contact design supports combined radial and axial loads acting in one direction, making paired mounting suitable where axial loads occur in both directions or where rigid axial location is required. The plastic TVP cage keeps mass low and provides smooth ball guidance at the stated speed ratings, while the X-life internal optimization contributes to consistent running accuracy. The open design requires external sealing and a separate lubrication arrangement suited to the operating speed and load conditions at the mounting location.