This cylindrical roller bearing guides motion through a particularly thick-walled outer ring with a central rib, combined with a full complement of cylindrical rollers and an inner ring. The outer ring is guided axially by the central rib and by the rolling elements themselves, giving the design a double row arrangement (X-life). Bore diameter is 15.0 mm, outside diameter 42.0 mm, and net mass is 0.156 kg. Sealing is provided on both sides by protected lip seals (2RS), keeping contaminants out of the roller path and retaining grease within the bearing. Because the outer ring is axially guided by the central rib and rolling elements rather than by a separate flange, the bearing handles axial guidance directly through its rolling contact surfaces. This construction suits applications requiring a track roller with integrated axial guidance and sealed running surfaces.