Track rollers are self-retaining, single or double row units with extra thick-walled outer rings. These bearings take in addition to high radial forces and axial forces in both directions. The outer surface of the outer rings is spherical or cylindrical. Versions with crowned lateral surface are used when misalignments occur with respect to the raceway and edge stresses must be avoided. The rollers are available with inner ring, with pins and with plastic sheath on the outer ring.
Various sizes are supplied in X-life design. These bearings are marked in the dimension tables.