This cylindrical roller bearing carries a double row of full complement cylindrical rollers running between a particularly thick-walled outer ring and an inner ring, with the outer ring axially guided by the rolling elements themselves. Bore diameter is 20.0 mm, outside diameter 52.0 mm, and net mass 0.318 kg. Labyrinth seals are fitted on both sides (sealing code 2LB). The thick-walled outer ring and full complement roller set give this design a high load-carrying capacity relative to its size, while the axial guidance by the rolling elements allows the bearing to run directly against a track surface without a separate guiding flange. The double-sided labyrinth sealing keeps contaminants out of the raceway while permitting continuous rolling contact with the mating surface, making the bearing suitable for direct track-following applications where compact radial dimensions and reliable axial location are required.