The HFH B71908-E-T-P4S-UL is a genuine HFH super precision angular contact ball bearing, engineered for high-speed and high-accuracy spindle applications. This bearing features a 40 mm inner diameter, 62 mm outer diameter, and 12 mm width. Its design incorporates a 25° contact angle (E), a durable phenolic resin cage (T) for optimal performance at elevated speeds, and a universally matched light preload (UL) for enhanced rigidity and precision. Ideal for machine tool spindles and other demanding industrial machinery.