The HFH B71911ETP4SUL is a high-precision single row angular contact ball bearing, specifically designed for machine tool spindles and other high-speed, high-accuracy applications. It features a 55 mm bore, 80 mm outer diameter, and 13 mm width. This bearing incorporates an optimized internal design (E), a phenolic resin cage (T) for high-speed capability, and P4S precision class for exceptional running accuracy. It is supplied with a universal arrangement and light preload (UL), ensuring optimal performance in demanding industrial environments.