This single row cylindrical roller bearing has a bore of 50.0 mm, outside diameter of 90.0 mm, and width of 20.0 mm, with a net mass of 0.531 kg. The outer ring has two ribs and the inner ring has one rib with an internal rib washer, forming a locating bearing configuration of type NUP. The E design provides an optimized internal geometry for increased load capacity, and the bearing is fitted with an M1 cage. Limiting speed is 14500 1/min, with a reference speed of 6600 1/min. The C3 radial internal clearance allows for thermal expansion and shaft deflection under load, making the bearing suitable for applications requiring axial location in one direction combined with free axial movement of the non-locating side. The rib and roller arrangement enables the bearing to carry radial loads together with limited axial loads in one direction, while the open design requires external sealing and a separate lubrication supply, either grease or oil, depending on the operating conditions.