Precision angular contact spindle bearing designed for high-speed rotation with a contact angle of 15° and restricted tolerances (P4S). Bore diameter is 120.0 mm, outside diameter 215.0 mm, width 40.0 mm, and net mass 5.23 kg. The bearing is fitted with a T cage and supplied without sealing. This spindle bearing is adjusted and supplied in pairs or sets, which allows precise control of internal clearance when mounted together, matching the preload conditions required for accurate shaft guidance. The 15° contact angle provides a balance between axial and radial load handling, while the P4S tolerance class ensures the dimensional accuracy needed for high-precision rotating assemblies. As the bearing has no seals, external sealing arrangements and a suitable lubrication method must be provided at the point of installation, with grease or oil selected according to the operating conditions.