1.1 本试验方法评价润滑脂提供的微动磨损保护。 1.2 以SI单位表示的值应被视为标准。 1.2.1 例外- 其他单位仅供参考。 1.3 本标准并不旨在解决与其使用相关的所有安全性问题（如果有）。本标准的使用者有责任在使用前建立适当的安全、健康和环境实践并确定法规限制的适用性。 具体警告语句，请参见 7.2 和 9.2 . 1.4 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。======意义和用途====== 5.1 本试验方法用于评价保护振动轴承免受微动磨损的润滑脂的性能。该方法用于规范目的，区分在规定的测试条件下允许低、中和高微动磨损的润滑脂。该试验已用于预测长途运输的客车车轮轴承润滑脂的微动性能。 6 测试结果不一定与其他类型服务的结果相关。用户有责任确定测试结果是否与其他类型的服务相关。

1.1 This test method evaluates the fretting wear protection provided by lubricating greases. 1.2 The values stated in SI units are to be regarded as the standard. 1.2.1 Exception— Other units are provided 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For specific warning statements, see 7.2 and 9.2 . 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 is used to evaluate the property of lubricating greases to protect oscillating bearings from fretting wear. This method, used for specification purposes, differentiates among greases allowing low, medium, and high amounts of fretting wear under the prescribed test conditions. The test has been used to predict the fretting performance of greases in wheel bearings of passenger cars shipped long distances. 6 Test results do not necessarily correlate with results from other types of service. It is the responsibility of the user to determine whether test results correlate with other types of service.