CORROSION PREVENTIVE PROPERTIES OF LUBRICATING GREASES: ASTM D1743
EXPLANATION
This test method differentiates the relative corrosion-preventing properties of lubricating greases using grease-lubricated tapered roller bearings stored under wet conditions. This test method is based on CRC Technique L 41 that shows correlation between laboratory results and service for grease lubricated aircraft wheel bearings.
TEST SUMMARY
New, cleaned, and lubricated bearings are run under a light thrust load for 60 s to distribute the lubricant in a pattern that might be found in service. The bearings are exposed to water, then stored for 48 h at 100 % relative humidity. After cleaning, the bearing cups are examined for evidence of corrosion.
TEST PRECISION
Due to the nature of the results, the precision of this test method has not been obtained by standard ASTM protocol. Bias statement also does not apply to this test.
