42% TO 58% BETTER RESISTANCE TO WATER WASHOUT THAN CONVENTIONAL LITHIUM AND LITHIUM COMPLEX BASE GREASES

    WATER WASHOUT TEST(ASTM D-1264)


  • The test method is used to evaluate the resistance of a grease to washout by water from a bearing.

  • The test method can be run at a temperature of either 1000F or 1750F.

  • 4 grams of the grease being tested is packed into a tarred ball bearing which is inserted in a housing with specified clearances and rotated at 600 +/-30rpm.

  • Water at the specified test temperature is impinged on the bearing plate at a flow rate of 5ml per second for 1 hour. At the end of 1 hour the unit is turned off and the bearing is placed in an oven for 16 hours at 1700F.

  • At the end of the 16 hour drying period the bearing is cooled and weighed to determine the amount of grease lost through water washout.

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