The HFH B7221CTP4AUL is a high-precision angular contact ball bearing specifically designed for demanding spindle applications. This bearing features an inner diameter of 105mm, an outer diameter of 150mm, and a width of 22mm. It incorporates a 15° contact angle (C), a durable phenolic resin cage (T) optimized for high-speed operation, and a P4A precision class, equivalent to ABEC-7 or better. The UL designation indicates universal matching with a light preload, making it suitable for paired arrangements. Engineered for high-speed capability and robust performance, it effectively manages high radial and axial loads in one direction, ensuring exceptional rigidity and accuracy in machinery.