This single row cylindrical roller bearing carries two ribs on the outer ring and a smooth inner ring, configured as a non-locating bearing type NU that allows axial displacement between shaft and housing within the bearing itself. Bore diameter is 140.0 mm, outside diameter 210.0 mm, width 33.0 mm, and net mass 3.94 kg. The bearing runs in a solid brass cage (M1) with internal clearance in C3 (Group 3), giving extra internal play to compensate for thermal expansion under load. Limiting speed is rated at 6200 1/min, with a reference speed of 3250 1/min. The non-locating design and smooth inner ring allow free axial movement of the roller set relative to the inner ring, making this bearing suitable for shaft arrangements where axial compensation is required at one bearing position while radial load is carried at both. Running accuracy is held to P6, supporting applications where tighter rotational precision is needed than standard tolerance class. The increased internal clearance of C3 combined with the M1 cage supports stable operation at elevated speeds and under conditions where thermal growth of the shaft must be absorbed without inducing axial preload.