This cylindrical roller bearing has a single row of rollers, with two ribs on the outer ring and a smooth (rib-free) inner ring, making it a non-locating bearing that allows axial displacement between shaft and housing. Bore diameter is 65.0 mm, outside diameter 140.0 mm, and width 48.0 mm, with a net mass of 3.58 kg. The bearing runs with C3 internal clearance and an M1 machined cage, achieving running accuracy to P6 tolerance class. Limiting speed is rated at 8800 1/min, with a reference speed of 4000 1/min. The non-locating design lets this bearing accommodate axial thermal expansion of the shaft without inducing additional radial load, while the smooth inner ring allows free axial movement of the rollers relative to the shaft seat. The C3 clearance compensates for temperature-related fit changes during operation, and the M1 cage supports stable roller guidance at the given speed range. The P6 accuracy class suits mounting positions requiring tighter running tolerances than standard class. As an open bearing, it requires external sealing and a separate lubrication supply appropriate to the operating conditions.