This cylindrical roller bearing is built as a double row unit with a particularly thick-walled outer ring featuring a central rib, a full complement cylindrical roller set and an inner ring. The outer ring is guided axially by the central rib and by the rolling elements themselves. Bore diameter is 20.0 mm, outside diameter 52.0 mm, net mass 0.311 kg, sealed on both sides with 2RS lip seals, X-life design. The axial guidance through the central rib removes the need for separate thrust washers, while the full complement roller set carries radial load over a compact width. Lip seals on both sides keep contaminants out and retain grease inside, so PWTR2052-2RS-XL can run with its outer ring rolling directly on a guide surface without additional axial location.