The HFH B71909-C-T-P4A-UL is a high-precision angular contact ball bearing designed for demanding machine tool spindle applications. This single-row bearing features a 15-degree contact angle (C), a phenolic resin cage (T), and P4A ultra-precision class (UL) for high rotational accuracy and rigidity. With a bore diameter of 45mm, an outer diameter of 75mm, and a width of 16mm, it ensures reliable performance in high-speed operations. This bearing is suitable for applications requiring high stiffness and minimal runout.