This spindle bearing carries a 25° contact angle and hybrid design with ceramic balls, giving reduced mass and lower centrifugal load on the balls at high rotational speeds. Bore diameter is 30.0 mm, outside diameter 55.0 mm, width 13.0 mm, and net mass 0.128 kg. The cage is executed in version T, and sealing is realized with non-contact lip seals on both sides (2RSD), keeping the raceways protected without adding contact friction. Supplied in matched pairs or sets, HCS7006-E-T-P4S-UL is manufactured to restricted (P4S) tolerances, allowing precise axial and radial internal geometry control needed for defined preload when mounted back-to-back, face-to-face or in tandem. The combination of ceramic rolling elements, non-contact sealing and tight tolerance class supports stable running accuracy and thermal behavior under sustained high-speed rotation, with lubrication to be selected according to the intended speed and preload configuration.