This spindle bearing carries a 40.0 mm bore, 62.0 mm outside diameter and 12.0 mm width, with a 25° contact angle single-row angular contact design intended for adjusted mounting in pairs or sets. The cage is designated T, the bearing is supplied without sealing, and net mass is 108.93 g. Tolerances are restricted (P4S), suited to applications requiring precise axial and radial positioning under a fixed contact angle. The 25° contact angle gives combined load capacity in both radial and axial directions, with the paired or set arrangement allowing preload to be set for stiffness and running accuracy. The restricted P4S tolerance class supports high-precision rotation with tight dimensional control, while the open design without sealing requires external contamination control and a suitable lubrication regime matched to the operating speed and preload level.