This single-row cylindrical roller bearing has a bore of 85.0 mm, outside diameter of 180.0 mm, and width of 41.0 mm, with a net mass of 5.139 kg. The outer ring carries two ribs while the inner ring is smooth (0 ribs), giving type NU configuration, so the bearing functions as a non-locating bearing allowing axial displacement between inner and outer ring. It is fitted with an M1 cage and features reinforced internal design (E), radial internal clearance CN, and running accuracy to P6. Limiting speed is rated at 6800 1/min, with a reference speed of 3800 1/min. The non-locating design allows the bearing to absorb axial shaft expansion without generating axial load, making it suitable for one of two supporting positions on a shaft where free axial movement must be accommodated. The smooth inner ring permits relative axial displacement between the rings during operation, while the two ribs on the outer ring provide radial guidance for the roller set. The P6 running accuracy class supports applications requiring tighter running tolerances than standard P0, and the CN clearance corresponds to normal internal clearance suited to standard fit and temperature conditions. The M1 cage, machined from brass, guides the rollers at the higher speed range indicated by the limiting and reference speed values.