EXPLANATION
This test method is used to assess the ability of grease to prevent corrosion in rolling bearings operated in the presence of distilled water, NaCl solution, or synthetic sea water. It uses grease-lubricated ball bearings under dynamic wet conditions. It is used for development and specification purposes.
TEST SUMMARY
New, cleaned, and lubricated bearings are tested partially immersed in water (distilled, synthetic sea water, or NaCl solution) under no applied load at a speed of 83 +/- 5 r/min in a predetermined sequence of running and stopping for a period of approximately one week. After cleaning, the bearings are examined and rated according to the degree of corrosion.
TEST PRECISION
This method has no bias because the value of corrosion can be defined only in terms of this test method.