The FAG B71938CTP4SUL is a high-performance super precision spindle bearing, manufactured by FAG (part of Schaeffler Group). This single-row angular contact ball bearing is engineered for demanding applications requiring extreme accuracy and high rotational speeds. It features a 190 mm bore diameter, 260 mm outer diameter, and 33 mm width. Key specifications include a 15° contact angle (C), a P4S (SP) precision class, and a universal arrangement with light preload (UL) for optimal performance in various configurations. The bearing incorporates a textile laminate cage (T) for enhanced durability and speed capabilities, making it suitable for machine tool spindles and other precision rotating equipment.