The FAG B71902-C-T-P4S-DFL is a super precision angular contact ball bearing set, specifically engineered for high-speed and high-rigidity applications in machine tool spindles. This duplex set features a 15 mm bore diameter, 28 mm outer diameter, and a combined width of 14 mm. It incorporates a 15° contact angle, a textile laminate (phenolic resin) cage for excellent high-speed performance, and a P4S precision class for superior accuracy. The DFL arrangement signifies a face-to-face mounting with light preload, optimizing it for precise rotational guidance and demanding operational environments.