The FAG B71909-E-2RSD-T-P4S-UL is a high-precision angular contact ball bearing from the 719 series, manufactured by FAG (Schaeffler). This bearing is specifically designed for demanding spindle applications, featuring a 45 mm bore diameter, 68 mm outer diameter, and 12 mm width. It incorporates 2RSD contact seals on both sides to provide robust protection against contaminants, ensuring extended service life. The bearing is equipped with a T-type textile laminate cage and boasts a P4S precision class for superior running accuracy and rigidity. The UL designation signifies a universal design for paired mounting with a light preload, making it ideal for high-speed and high-precision machinery.