This is a single row angular contact ball bearing designed to carry combined loads, with a contact angle that allows axial and radial forces to be handled simultaneously in one direction. Bore diameter is 25.0 mm, outside diameter 52.0 mm, and width 15.0 mm, with a net mass of 138.0 g. The bearing belongs to the X-life series and uses a solid brass cage, designation MP. Limiting speed is rated at 24900 1/min, with a reference speed of 13800 1/min. The solid brass cage guides the balls precisely and withstands higher accelerations, supporting stable operation up to the limiting speed. Being a single row design, this bearing should be mounted in pairs or combined with a second angular contact bearing when axial loads act in both directions. The X-life execution indicates a refined internal geometry and rolling element finish, contributing to smoother running and consistent load distribution across the contact angle. No shields or seals are specified, so lubrication and contamination protection must be provided by the housing arrangement.