This cylindrical roller bearing (NU411-XL-M1) is a single row, non-locating design with a bore diameter of 55.0 mm, outside diameter of 140.0 mm, and width of 33.0 mm. The outer ring has 2 ribs while the inner ring is smooth (0 ribs), allowing axial displacement between the rings within the bearing. It is fitted with an M1 cage, has a net mass of 2.76 kg, and runs to P6 accuracy. Limiting speed is 9400.0 1/min, with a reference speed of 5100.0 1/min. The radial internal clearance falls in group CN (Group N), giving normal running clearance suited to standard mounting and operating conditions. Since the bearing is a non-locating type, it accommodates axial movement of the shaft relative to the housing, making it suitable where thermal expansion or shaft length variation must be compensated without inducing axial preload. The P6 accuracy class supports applications requiring tighter running tolerances than standard P0, while the smooth inner ring profile permits the outer ring with ribs to guide the roller set independently of inner ring axial position.