Cylindrical roller bearing NU248-E-TB-M1-C3 is a single row design with two ribs on the outer ring and a smooth (rib-free) inner ring, allowing free axial displacement between rings. Bore diameter is 240.0 mm, outside diameter 440.0 mm, width 72.0 mm, mass 50.18 kg. Limiting speed is 2320 1/min, reference speed 1220 1/min. The bearing uses an M1 cage and runs with C3 (Group 3) radial internal clearance, in TB design, with running accuracy to P6. The non-locating configuration allows the bearing to accommodate axial shaft expansion, making it suitable for one side of a shaft arrangement while a locating bearing fixes the opposite side. The C3 clearance compensates for thermal growth during operation, while the M1 cage supports stable roller guidance at the given speed range. P6 running accuracy allows tighter shaft alignment and reduced radial runout compared to standard tolerance classes.