This cylindrical roller bearing guides linear or rotary motion through a solid roller stud fitted with a fixing thread and a mounting aid, allowing direct attachment without a separate housing. The outer ring is particularly thick-walled and axially guided by the full complement of cylindrical rollers arranged in a double row, giving high radial load capacity within its compact envelope. Outside diameter is 40.0 mm, width 58.0 mm, and net mass 0.237 kg. Labyrinth seals on both sides (2LB) restrict contamination ingress while allowing lubricant retention, suiting the bearing for applications with continuous rolling contact on a track surface. As the design has no eccentric collar, mounting position is fixed by the stud thread rather than by adjustable eccentricity, so alignment must be set through the supporting structure. The thick outer ring and full complement roller set support sustained radial loading where a compact, self-guiding track roller is required.