Combination of hollow shaft and inner shaft, comprising friction reducing and corrosion protecting coating at at least one of components

摘要

At least the inner surface of the hollow shaft or the outer surface of the inner shaft is provided with a friction reducing and corrosion protecting coating, which can be a dual component lacquer hardened by heating after application. Molybdenum-sulfide is particularly suitable as a friction reducing ingredient of the substance. The layer is still effective after having been worn off the surface and mixed with the metal particles removed from the shafts.