This cylindrical roller bearing separates the inner ring from the outer ring by design, functioning as a non-locating bearing that allows axial displacement within the housing. It has a bore diameter of 40.0 mm, an outside diameter of 68.0 mm, and a width of 15.0 mm, with a net mass of 218.5 g. The outer ring carries 2 ribs while the inner ring runs smooth with 0 ribs, type NU. The cage is designated M1, radial internal clearance is CN (Group N), and running accuracy is manufactured to P6. Limiting speed is 20400.0 1/min, with a reference speed of 8900.0 1/min. The smooth inner ring allows the outer ring to shift axially relative to the roller and cage assembly, letting the bearing accommodate axial displacement of the shaft without transmitting axial load, which suits mounting positions where the shaft requires free axial movement while carrying radial load. The P6 running accuracy supports precise radial guidance, and the CN internal clearance is suited to standard fit and thermal conditions without additional preload considerations. The M1 cage guides the rollers at the specified speed range, with the single-row NU configuration keeping the design compact for its bore and outside diameter.