This spindle bearing is designed for precision rotation at high speeds, with a 15° contact angle allowing combined radial and axial load support. Bore diameter is 45.0 mm, outside diameter 75.0 mm, width 16.0 mm, and net mass 0.249 kg. The limiting speed reaches 40000.0 1/min. The bearing uses a T-type cage and is supplied without sealing, matched for adjusted mounting in pairs or sets under restricted tolerances (P4S). The restricted tolerance class and matched-set design allow accurate axial and radial positioning when mounted in pairs, maintaining consistent preload across the set. As the bearing is unsealed, external sealing or a defined lubrication system must be provided by the housing design. The T cage supports stable ball guidance at high rotational speeds, making this bearing suitable for applications requiring precise, low-vibration rotation under combined load conditions within its rated speed limit.