This double row cylindrical roller bearing carries a tapered bore with 1:12 taper, allowing mounting on tapered seats or with an adapter sleeve for controlled radial clearance adjustment. Bore diameter is 95.0 mm, outside diameter 145.0 mm, width 37.0 mm, and net mass 2.01 kg. The bearing is separable, with a TVP polyamide cage, and set to C1 radial internal clearance, tighter than standard, which suits high-precision applications requiring minimal radial play. Being a non-locating design, it accommodates axial displacement of the shaft while maintaining radial guidance, which is characteristic of the NN30 series in SP super precision execution. The C1 clearance combined with the tapered bore allows fine adjustment of internal fit during mounting, supporting high rotational accuracy and stiffness. The separable outer and inner rings simplify mounting and dismounting, while the cage design supports stable roller guidance at elevated speeds.