This single row cylindrical roller bearing has two ribs on the outer ring and one rib on the inner ring, allowing the inner ring to displace axially relative to the outer ring, which makes it work as a semi-locating bearing. Bore diameter is 35.0 mm, outside diameter 80.0 mm, width 21.0 mm, and net mass is 0.564 kg. Limiting speed is 16400 1/min, reference speed 7900 1/min. The bearing uses an M1 cage and internal clearance C3 (Group 3). The rib arrangement allows the bearing to carry radial loads while permitting axial displacement in one direction, which suits shaft arrangements where thermal expansion or slight axial movement must be accommodated without inducing axial preload. The C3 internal clearance compensates for interference fits and temperature rise during operation, while the M1 cage supports stable roller guidance at the given speed range. As supplied without integrated sealing, lubrication and sealing must be provided by the surrounding housing arrangement.