This cylindrical roller bearing carries a double row of full complement cylindrical rollers running against a particularly thick-walled outer ring with a central rib. The rib guides the outer ring axially together with the rolling elements, while an inner ring completes the set. Bore diameter is 40.0 mm, outside diameter 80.0 mm, net mass 0.785 kg. Sealing is provided by protected lip seals on both sides (2RS), and the design follows the X-life concept. The full complement roller set gives the bearing a high number of rolling elements per row, increasing load carrying capacity for a given envelope size compared to a caged arrangement. Axial guidance through the central rib allows the outer ring to run true under radial load without requiring a separate guiding track, which is the working principle of a yoke type track roller built as a cylindrical roller bearing. The double-side lip seals keep grease inside the bearing and block dust and moisture ingress, so the bearing can operate with grease lubrication in an unshielded position without additional cover.