This single-row cylindrical roller bearing has a bore of 70.0 mm, outside diameter of 125.0 mm, and 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 (type NU), making it a non-locating bearing that allows axial displacement between shaft and housing within the bearing itself. It runs in radial internal clearance C3 (Group 3) with an M1 machined brass cage, in the E design, and is manufactured to P6 running accuracy. Limiting speed is 10100 1/min, with a reference speed of 4650 1/min. The non-locating design and axial free movement of the inner ring relative to the outer ring make this bearing suitable for shaft arrangements where thermal expansion or shaft deflection must be compensated without introducing axial preload. The C3 internal clearance accommodates tighter fits and moderate thermal growth, while the P6 accuracy class supports applications requiring improved running precision and reduced radial runout. As an open bearing without integrated seals, it requires external sealing and a separate lubrication supply, either grease or oil, matched to the specified speed limits.