This spindle bearing carries a 25° contact angle and is manufactured to restricted (P4S) tolerances, allowing precise adjustment when mounted in pairs or sets. Bore diameter is 30.0 mm, outside diameter 55.0 mm, width 13.0 mm, and net mass 113.2 g. The cage is designated T, and the bearing is supplied without sealing. The restricted tolerance class and defined contact angle make this bearing suitable for arrangements requiring accurate axial and radial guidance under combined loads, where matched pairs or sets establish a defined preload. As it is supplied without sealing, external protection against contamination and a separate lubrication arrangement must be provided by the housing design. The T cage supports stable ball guidance at the elevated speeds typical of adjusted spindle bearing sets.