ASTM D4290 - Determining the Leakage Tendencies of Automotive Wheel Bearing Grease Under Accelerated Conditions
We perform lubricating grease testing by ASTM D4290 to evaluate the leakage tendencies of wheel bearing greases under laboratory conditions. Grease is distributed in a modified automobile front wheel hub-spindle-bearings assembly which is rotated and heated for a certain amount of time. Grease and oil leaks are measured at the end of the test.
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For additional information on this test method or to purchase a copy of the method, please click HERE to open a new window and visit the ASTM website.