The FAG B71904-E-T-P4S-DBL is a high-performance super precision angular contact ball bearing, part of the B719 series, designed for demanding spindle applications. It features an optimized internal design (E) and a 25° contact angle, with a bore diameter of 20 mm, an outer diameter of 47 mm, and a width of 14 mm. This bearing is equipped with a durable textile laminate cage (T) and manufactured to P4S super precision class standards, ensuring exceptional accuracy and rigidity. The DBL suffix indicates a duplex arrangement with a back-to-back configuration and light preload, optimized for high-speed operation and precise shaft guidance. It has a dynamic load rating of 14.7 kN and a static load rating of 7.6 kN, with limiting speeds of 30,000 rpm (grease) and 45,000 rpm (oil).