The FAG B7011-C-T-P4A-UM is a high-precision single-row angular contact ball spindle bearing, manufactured by Schaeffler, designed for demanding applications requiring high speed and rigidity. Featuring a 15° contact angle (C) and ceramic balls (T) made of silicon nitride for reduced friction and increased speed capabilities, this bearing offers P4A (ISO tolerance class 4, improved) precision. It has an inner diameter of 55 mm, an outer diameter of 80 mm, and a width of 13 mm. The 'UM' designation indicates universal matchability, allowing for flexible arrangement in pairs or sets. It features a phenolic resin cage and is an open type bearing, suitable for grease or oil-air lubrication.