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 in one direction while guiding the shaft in the other. Bore diameter is 65.0 mm, outside diameter 120.0 mm, width 23.0 mm, and net mass is 1.17 kg. The E design provides an optimized internal geometry for increased load carrying capacity, and the bearing runs with a solid brass cage designated M1. Limiting speed is 10600 1/min, reference speed 4900 1/min. Radial internal clearance is set to C3, wider than normal, which compensates for interference fits and thermal expansion during operation, keeping the roller set free of excessive preload. The separable inner and outer ring construction simplifies mounting and dismounting, and the one-directional ring displacement suits applications where the shaft requires axial guidance combined with tolerance for thermal growth. The open design requires external sealing and a separate lubrication supply, either grease or oil, matched to the reference speed given.