This track roller carries a single row of balls between a particularly thick-walled outer ring and an inner ring, with the ball and cage assembly guided axially by the balls themselves against the outer ring. Bore diameter is 10.0 mm, outside diameter 32.0 mm, height 9.0 mm, and net mass 36.9 g. Sealing is provided by lip seals on both sides (2RSR), combining axial and radial sealing action. The thick-walled outer ring lets this roller run directly on a track surface, taking radial load while the balls provide axial guidance without a separate flange. The double lip seal keeps contamination out and retains internal lubrication, making the bearing self-retaining as a complete unit ready for mounting on a shaft or pin without additional axial fixing of the outer ring.