The FAG B71930-C-T-P4S-DTL is a high-precision angular contact ball bearing set, part of the Schaeffler Group's FAG brand, specifically designed for demanding machine tool spindle applications. This designation signifies a matched pair of bearings (DTL) arranged in tandem, each featuring a 15° contact angle (C), a durable textile laminate cage (T), P4S special precision, and light preload (L). Each individual bearing within the set has a bore diameter of 150 mm, an outer diameter of 210 mm, and a width of 32 mm. This configuration provides high rotational speeds, exceptional rigidity, and minimal friction, ensuring optimal performance and accuracy in critical industrial machinery.