This is a spindle bearing designed for precision positioning under angular contact loading, with a contact angle of 25°. Bore diameter is 12.0 mm, outside diameter 32.0 mm, width 10.0 mm, and net mass 43.0 g. The bearing uses a T cage and is supplied without sealing. It is manufactured to restricted tolerances and matched for use in pairs or sets, as indicated by the P4S accuracy class and UL matching designation. The restricted tolerances and P4S accuracy class allow the bearing to run true at tight positional accuracy, while the paired or set arrangement enables controlled preload across the mounted assembly. The 25° contact angle provides combined axial and radial load handling suited to spindle-type mounting. Since sealing is absent, external lubrication and protection must be provided by the housing design, and grease or oil supply should be arranged according to the mounting configuration.