The FAG B7018-E-T-P4S-DFL is a high-precision spindle bearing designed for demanding applications requiring high rotational accuracy and speed. This angular contact ball bearing features a 90 mm bore, 140 mm outer diameter, and 24 mm width. It is part of the 7018 series, indicating its robust design for machine tool spindles and other precision machinery. The 'E' denotes optimized internal design, 'T' a phenolic resin cage, 'P4S' a higher precision class than P4, and 'DFL' indicates a duplex set (two bearings) arranged in a face-to-face (DF) configuration with a light preload (L). This configuration provides high rigidity and accuracy.