This single row cylindrical roller bearing, type NU, has a bore diameter of 45.0 mm, an outside diameter of 85.0 mm and a width of 19.0 mm, with a net mass of 0.497 kg. The outer ring carries two ribs while the inner ring is smooth (no ribs), making it a non-locating bearing that allows axial displacement between inner and outer ring. It features an E design with a solid cage M1, radial internal clearance CN (Group N), and running accuracy to P6. Limiting speed is 15300.0 1/min, reference speed 6900.0 1/min. Because the inner ring has no ribs, the bearing accommodates axial shaft movement while carrying pure radial load, making it suitable as a floating bearing position on one end of a shaft arrangement. The P6 running accuracy and CN clearance suit applications requiring precise radial guidance at moderate to high speeds, with the M1 cage supporting stable roller guidance up to the stated limiting speed.