The INA-FAG B71920-E-T-P4S-DFL is a high-precision FAG spindle bearing designed for demanding machine tool applications. This angular contact ball bearing features a 100 mm bore, 140 mm outer diameter, and 20 mm width. It is manufactured to P4S tolerance class, ensuring exceptional rotational accuracy and rigidity. The 'E' suffix indicates an optimized internal design for increased load capacity, 'T' signifies a phenolic resin cage, and 'DFL' indicates a universal design for paired mounting, arranged in a back-to-back (DF) configuration with a light preload (L). This bearing is ideal for main spindles in lathes, milling machines, and grinding machines where high speed and precision are critical.