This spindle bearing carries a 15° contact angle and is manufactured to restricted tolerances, allowing precise axial and radial positioning under combined loads. Bore diameter is 50.0 mm, outside diameter 80.0 mm, width 16.0 mm, with a net mass of 250.25 g. The cage is designated T, and the bearing is supplied without sealing. It is produced as an adjusted bearing intended for use in pairs or sets. Due to the restricted tolerances (P4S), this bearing suits applications requiring high running accuracy and low internal clearance. Since it is supplied without sealing, external protection against contamination and separate lubrication management must be provided by the surrounding construction. Use in pairs or sets allows the axial internal clearance to be set through matched preload, supporting stable shaft positioning under the specified contact angle.