The FAG B71918-C-T-P4A-UM is a genuine FAG high-precision angular contact ball bearing, meticulously engineered for demanding machine tool spindle applications. This single-row bearing features an inner diameter of 90 mm, an outer diameter of 125 mm, and a width of 18 mm. It incorporates a 15° contact angle (C), a durable phenolic resin cage (T), and a P4A tolerance class, ensuring exceptional accuracy, rigidity, and high-speed performance. The UM designation signifies universal matching for medium preload, making it ideal for precision machinery requiring high operational reliability.