This cylindrical roller bearing, INA NUKRE40-A, is built as a stud type track roller with a double row, full complement cylindrical roller set housed in a particularly thick-walled outer ring. Outside diameter is 40.0 mm, width 58.0 mm, and net mass 0.263 kg. The roller stud is solid, machined with a fixing thread and a mounting aid, and carries an eccentric collar allowing track position adjustment. The outer ring is guided axially directly by the rolling elements, eliminating the need for separate axial guidance components. Sealing type 2LB provides labyrinth seals on both sides of the outer ring, protecting the full complement roller set and raceways from contamination while retaining lubricant for smooth rolling operation under the fitted eccentric collar setting.