The FAG B7209-C-T-P4S-DFL is a genuine high-precision angular contact ball bearing designed for demanding spindle applications. Featuring a 45mm bore diameter, 85mm outer diameter, and 19mm width, this bearing is engineered for high speed and accuracy. It has a 15° contact angle (C) and a P4S precision class, indicating superior running accuracy and performance. The 'DFL' designation typically refers to a universal arrangement for duplex mounting, often in a back-to-back (DF) or face-to-face (DB) configuration, ensuring high rigidity and load distribution. The 'T' indicates a textile laminated phenolic resin cage, suitable for high-speed operation. This FAG spindle bearing is ideal for machine tool spindles and other applications requiring extreme precision and reliability.