Genuine FAG B7211-E-T-P4S-DBL super precision angular contact ball bearing set, manufactured by Schaeffler. This matched duplex set consists of two B7211-E-T-P4S bearings, specifically ground for back-to-back (DBL) mounting with light preload, ensuring high rigidity and accuracy essential for machine tool spindles and other high-speed, high-precision applications. Each individual bearing features a 55 mm bore diameter, 100 mm outer diameter, and 21 mm width, forming a total mounted width of 42 mm for the set. They have a 25° contact angle and utilize a durable textile laminate (T) cage. The P4S precision class guarantees exceptional running accuracy and performance under demanding conditions.