This angular contact ball bearing carries combined radial and axial loads in one direction, transmitting force through a defined contact angle between the raceways and balls. The single-row design has a bore diameter of 40.0 mm, outside diameter of 90.0 mm, and width of 23.0 mm, with a net mass of 0.64 kg. It is built to the X-life standard, giving increased load rating within the same envelope dimensions, and uses a solid plastic cage (TVP) that guides the balls with low friction and stable operation up to the limiting speed of 4650.0 1/min. Both sides are fitted with seals (2RS), keeping grease inside the bearing and preventing ingress of contaminants, which supports maintenance-free operation over the service life of the fill. Since the bearing takes axial load in a single direction, it should be mounted in pairs or in combination with a second angular contact bearing for full shaft support. The plastic cage and X-life rolling elements allow smooth running at the stated speed limit while keeping internal friction and heat generation low.