1.1 本试验方法包括使用SRV试验机在200的试验载荷下测定润滑脂的摩擦系数及其在高频线性振荡运动下防止磨损的能力的程序 N、 频率为50 Hz，冲程振幅1.00 mm，持续时间2 h、 以及测试机器范围内的温度，特别是环境温度至280 °C。其他测试负载（10 N至1200 SRVI型号为N，10 N至1400 SRVII型号为N，10 N至2000 N表示SRVIII型号），频率（5 Hz至500 Hz）和冲程振幅（0.1 mm至4.0 mm）。该测试方法的精度基于规定的参数和50的测试温度 °C和80 °C。确定并报告了球的平均磨痕尺寸和摩擦系数。 注1: Optimol Instruments提供升级套件，使SRVI/II机器能够在1600 N、 如果需要。 1.2 该试验方法也可用于测定流体润滑剂在类似试验条件下的耐磨能力及其摩擦系数。 1.3 以国际单位制表示的数值应视为标准。本标准中不包括其他计量单位。 1.4 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.5 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 该试验方法可用于确定润滑脂在选定温度和负载下的磨损特性和摩擦系数，该温度和负载规定用于在初始高赫兹点接触压力下长时间存在高速振动或启停运动的应用。本试验方法已应用于鉴定前轮驱动汽车等速万向节所用润滑脂和滚柱轴承所用润滑油脂。该测试方法的用户应确定结果是否与现场性能或其他应用程序相关。

1.1 This test method covers a procedure for determining a lubricating grease's coefficient of friction and its ability to protect against wear when subjected to high-frequency, linear-oscillation motion using an SRV test machine at a test load of 200 N, frequency of 50 Hz, stroke amplitude of 1.00 mm, duration of 2 h, and temperature within the range of the test machine, specifically, ambient to 280 °C. Other test loads (10 N to 1200 N for SRVI-model, 10 N to 1400 N for SRVII-model, and 10 N to 2000 N for SRVIII-model), frequencies (5 Hz to 500 Hz) and stroke amplitudes (0.1 mm up to 4.0 mm) can be used, if specified. The precision of this test method is based on the stated parameters and test temperatures of 50 °C and 80 °C. Average wear scar dimensions on ball and coefficient of friction are determined and reported. Note 1: Optimol Instruments supplies an upgrade kit to allow SRVI/II-machines to operate with 1600 N, if needed. 1.2 This test method can also be used for determining a fluid lubricant's ability to protect against wear and its coefficient of friction under similar test conditions. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.4 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. 1.5 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 can be used to determine wear properties and coefficient of friction of lubricating greases at selected temperatures and loads specified for use in applications where high-speed vibrational or start-stop motions are present for extended periods of time under initial high Hertzian point contact pressures. This test method has found application in qualifying lubricating greases used in constant velocity joints of front-wheel-drive automobiles and for lubricating greases used in roller bearings. Users of this test method should determine whether results correlate with field performance or other applications.