This track roller guides directly along a mating surface using its particularly thick-walled outer ring, which is axially guided by the ball complement itself rather than a separate flange. The single row design combines a ball and cage assembly with an inner ring, giving a bore diameter of 30.0 mm, outside diameter of 72.0 mm, height of 16.0 mm and a net mass of 0.33 kg. Sealing is provided by lip seals on both sides (2RSR), combining axial and radial sealing action. The self-retaining construction keeps the ball and cage assembly captive on the inner ring, simplifying handling during installation on a shaft or stud. The double lip seal arrangement restricts contamination ingress from both sides while retaining internal lubricant, making this roller suited to applications where the outer ring itself acts as the running surface against a track or cam profile.