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6/1/2020 |
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6/1/2020 |
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Details
1.1 ,This test method covers a laboratory procedure for evaluating leakage tendencies of wheel bearing greases when tested under prescribed conditions.
1.2 ,The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. The exception is apparatus dimensions, in inches, which are to be regarded as the standard.
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For specific warning statements, see Section 8.
1.4 ,This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Significance and Use:
5.1 ,This test method differentiates among wheel bearing greases having distinctly different high-temperature leakage characteristics. It is not the equivalent of longtime service tests.
5.2 ,This test method has proven to be helpful in screening greases with respect to leakage tendencies for automotive wheel bearing applications.
Note 1: ,It is possible for skilled operators to observe changes in grease characteristics that can occur during the test, such as grease condition. Leakage is reported as a quantitative value, whereas the evaluation of grease condition is subject to differences in personal judgment among operators and cannot be used effectively for quantitative measurements.
Additional Info
| Author | American Society for Testing and Materials (ASTM International) |
|---|---|
| Committee | D02.G0.05 - Committee D02 on Petroleum Products, Liquid Fuels, and Lubricants |
| Published by | ASTM |
| Document type | Standard |
| Theme | ,Lubricants, industrial oils and related products |
| ICS | 75.100 : Lubricants, industrial oils and related products
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| Number of pages | 8 |
| Replace | ASTM D4290-19 + Redline |
| Set | ASTM Volume 05.02 - Multi-User - Single-Site Online |
| Document history | ,,,,, |
| Keyword | D4290 |
