This cylindrical roller bearing carries radial loads in a single row arrangement, with a bore of 130.0 mm, outside diameter of 280.0 mm and width of 58.0 mm. The outer ring has 2 ribs while the inner ring is smooth with 0 ribs, giving the NU design its non-locating function that allows axial displacement between shaft and housing. It runs with a solid brass cage (M1), radial internal clearance C3, and reaches a limiting speed of 4250.0 1/min with a reference speed of 2340.0 1/min. Net mass is 17.921 kg. The non-locating design suits mounting positions where the shaft needs to compensate for thermal expansion or axial movement, since the rollers can travel along the rib-free inner ring. Running accuracy is held to P6, supporting applications requiring tighter dimensional and rotational tolerances than standard class. The C3 clearance provides additional internal play to accommodate heat generation and interference fits, while the M1 cage guides the rollers for stable operation at the stated speed limits.