The FAG B7004-E-2RSD-T-P4S-UM is a high-precision, sealed angular contact spindle bearing designed for demanding applications requiring high speed and accuracy. This genuine FAG bearing features a 20 mm bore diameter, 42 mm outer diameter, and 12 mm width. It incorporates ceramic balls (suffix T) for enhanced performance and reduced friction, along with a 25° contact angle (suffix E). The '2RSD' indicates seals on both sides, providing protection against contaminants and retaining lubricant. With a P4S tolerance class, this bearing offers superior running accuracy and stiffness, making it ideal for machine tool spindles and other precision rotating equipment.