This cylindrical roller bearing has a single row of rollers, a bore of 30.0 mm, an outside diameter of 72.0 mm, and a width of 27.0 mm, with a net mass of 0.58 kg. The outer ring carries two ribs while the inner ring is smooth (no ribs), giving the NU design its non-locating character along the shaft axis. The bearing is fitted with an M1 cage, features the E design for increased load rating, and runs to P6 accuracy. Radial internal clearance is set to C3 (Group 3), permitting a limiting speed of 18500 1/min and a reference speed of 7200 1/min. The smooth inner ring allows axial displacement between shaft and housing, making this bearing suitable as a non-locating support where thermal expansion or shaft deflection needs to be accommodated. The C3 clearance compensates for interference fits and temperature rise during operation, while the P6 running accuracy supports applications requiring tighter radial rotation tolerances than standard class. The M1 cage guides the rollers at higher speeds, consistent with the stated limiting speed value, and the open design without integrated seals requires external sealing and lubrication provision, either grease or oil, appropriate to the operating speed and load.