This single row cylindrical roller bearing carries two ribs on the outer ring and one rib on the inner ring, giving it a semi-locating function that allows axial displacement of the non-ribbed side while the ribbed side guides the assembly. Bore diameter is 50.0 mm, outside diameter 110.0 mm, width 27.0 mm, and net mass is 1.447 kg. The E design provides an optimized internal geometry for increased load carrying capacity, and the bearing runs with a machined brass cage designated M1. Radial internal clearance corresponds to CN (Group N), the standard clearance group, suitable for normal operating conditions without special thermal or fit compensation requirements. Limiting speed reaches 11600 1/min, with a reference speed of 6000 1/min under standard operating conditions. The separable inner and outer ring construction of the NJ type simplifies mounting and dismounting, and the semi-locating arrangement makes this bearing suitable as a floating or fixed bearing position depending on shaft layout, accommodating axial shaft expansion on the non-ribbed side while transmitting radial loads and limited axial loads through the ribbed contact.