This single row cylindrical roller bearing, type NU, has a bore diameter of 70.0 mm, an outside diameter of 125.0 mm, and a width of 24.0 mm, with a net mass of 1.27 kg. The outer ring carries two ribs while the inner ring is smooth (no ribs), giving the bearing its non-locating character and allowing axial displacement between inner and outer ring within the bearing. It features the reinforced E design and an M1 machined brass cage. Radial internal clearance is CN (Group N), running accuracy is manufactured to P6, limiting speed reaches 10100 1/min, and reference speed is 4650 1/min. As a non-locating bearing, it accommodates axial shaft expansion or contraction while carrying radial loads only, making it suitable for one bearing position in a shaft arrangement where the counterpart bearing provides axial location. The smooth inner ring allows free axial movement of the rollers relative to the shaft seat, and the P6 accuracy class supports applications requiring tighter running tolerances than standard P0. The M1 cage design is suited to the stated speed range, and as an open bearing it requires external sealing and a separate lubrication supply, whether grease or oil, matched to the operating speed and load conditions.