ASTM D1263

The test method provides a screening device that permits differentiation among products having distinctly different leakage characteristics (Note 1). It is not the equivalent of longtime service tests, nor is it intended to distinguish between wheel bearing greases showing similar or borderline leakage.

Note 1—It is possible for skilled operators to observe significant changes in other important grease characteristics that occurred during the test. Such additional information can be of special interest to individual operators. The observations, however, are subject to differences in personal judgment among operators, and cannot be used effectively for quantitative rating.

1. Scope

1.1 This test method covers the evaluation of the leakage tendencies of wheel bearing greases when tested under prescribed laboratory conditions.

1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific hazard information see 8 and Annex A2.

2. Referenced Documents

D217 Test Methods for Cone Penetration of Lubricating Grease
D3527 Test Method for Life Performance of Automotive Wheel Bearing Grease
D4175 Terminology Relating to Petroleum, Petroleum Products, and Lubricants
D4290 Test Method for Determining the Leakage Tendencies of Automotive Wheel Bearing Grease under Accelerated Conditions
E1 Specification for ASTM Liquid-In-Glass Thermometers
E77 Test Method for Inspection and Verification of Thermometers

Index Terms

automotive wheel bearing; leakage; lubricating grease; wheel bearing grease; ICS Number Code 75.100; 75.100

Citing ASTM Standards

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