The FAG XCS71910-C-T-P4S-UL is a premium hybrid angular contact ball bearing, specifically engineered for demanding high-speed applications in machine tool spindles. This bearing features stainless steel rings combined with ceramic balls, offering superior performance in terms of rigidity, speed capability, and resistance to corrosion and wear. It has an inner diameter of 50 mm, an outer diameter of 80 mm, and a width of 16 mm. The 'C' designation indicates a 15° contact angle, while 'T' signifies a textile laminate cage, typically made of phenolic resin, optimized for high speeds. With a P4S precision class, this bearing ensures exceptional running accuracy. The 'UL' suffix denotes a universal arrangement with a light preload, allowing for flexible mounting configurations in sets.