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 80.0 mm, outside diameter 170.0 mm, width 39.0 mm, net mass 3.97 kg. The polyamide cage (TVP2) and E design provide increased roller complement and load capacity. Limiting speed is rated at 5500 1/min, reference speed at 4100 1/min. Radial internal clearance is CN (Group N), suitable for standard fit conditions without additional preload requirements. The rib configuration on both rings permits transmission of light axial loads in one direction, making this bearing suitable as a floating-side support where controlled axial guidance combined with high radial load capacity is required. The cage design supports stable roller guidance across the rated speed range, and the bearing can be used with grease or oil lubrication as appropriate for the operating conditions.