CORROSION PREVENTIVE PROPERTIES OF LUBRICATING GREASES

This test apparatus is used for the method which covers the determination of the corrosion preventive properties of greases using grease-lubricated tapered roller bearings stored under wet conditions. Cleaned and lubricated bearings are run under a light thrust load for specific time to distribute the lubricant in a pattern that might be found in service. The bearings are exposed to water and then stored controlled environmental conditions. After cleaning, the bearing cups are examined for evidence of corrosion.