This track roller carries loads via a particularly thick-walled outer ring, guided axially by the ball and cage assembly running directly against the inner ring — no separate guiding ribs are needed since the balls themselves provide axial guidance of the outer ring. Bore diameter is 17.0 mm, outside diameter 47.0 mm, height 12.0 mm, and net mass 0.109 kg. Sealing on both sides is provided by lip seals (2RSR), combining axial and radial sealing action. The thick-walled outer ring allows the roller to run directly on a track or guide surface without a separate outer race, making it suited for applications where the outer ring itself acts as the rolling surface. The double lip seal design (2RSR) protects the ball and cage assembly from contamination while retaining lubricant, allowing continuous operation without frequent maintenance intervention. As a self-retaining single row ball bearing unit, it keeps the ball and cage assembly captive within the inner and outer ring for straightforward handling during mounting.