This track roller carries axial guidance of the outer ring through the balls themselves, using a particularly thick-walled outer ring, a ball and cage assembly, and an inner ring. Bore diameter is 8.0 mm, outside diameter 24.0 mm, height 7.0 mm, and net mass is 0.016 kg. Sealing is provided on both sides by lip seals (2RSR), combining axial and radial sealing action. The single-row, self-retaining design with a thick-walled outer ring allows the roller to run directly on a track surface while the balls take up axial guidance loads, removing the need for a separate retaining flange. The double lip seal keeps contaminants out and retains lubricant, making the roller suitable for continuous operation once greased, without requiring additional axial guidance components on the outer ring.