This single-row cylindrical roller bearing, type NU, has a bore of 45.0 mm, outside diameter of 100.0 mm, and width of 36.0 mm, with a net mass of 1.41 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. The cage is of type M1, and the E design indicates an optimized internal geometry for increased load carrying capacity. Radial internal clearance is CN (Group N), and running accuracy is to P6. Limiting speed is 12800 1/min, with a reference speed of 5200 1/min. Because the outer ring is free to move axially relative to the inner ring, this bearing accommodates axial expansion of the shaft without inducing additional axial load, making it suitable as a floating bearing position. The P6 running accuracy supports applications requiring tighter rotational precision than standard tolerance, while the CN internal clearance provides a balanced fit for general radial load conditions. The M1 cage design guides the rollers reliably at the stated speed range, and the bearing is intended for grease or oil lubrication as appropriate to the operating speed and temperature.