The FAG B71910-E-2RSD-T-P4S-UM is a high-precision angular contact ball bearing, part of the Schaeffler Group's FAG brand, specifically engineered for demanding machine tool spindle applications. This sealed bearing features a 50 mm bore diameter, 80 mm outer diameter, and 16 mm width. It is equipped with 2RSD contact seals on both sides to provide robust protection against contaminants, ensuring extended service life. The bearing incorporates a phenolic resin cage (T) and is manufactured to P4S ultra-precision class for exceptional rotational accuracy and rigidity. Its UM (universal matching) designation allows for flexible mounting in various arrangements, making it suitable for high-speed and high-load operations.