... , which effectively coats the mating surface of the bearing assembly, forming an oxide type solid lubricant film. ... 0.002mm, provides good corrosion resistance. Self-lubricating bearing FeaturesSuitable for dry running, low coefficient of friction, ... steam, and other valves and valve trunnions...Home appliances: tape recorders, refrigerators, air conditioners, cleaners, polishers, sewing machines ...