1.1本试验方法描述了测定小型轴承中润滑脂寿命和扭矩的程序。虽然该试验方法不等同于长期现场服务试验，但其目的是在合理的试验时间内预测高温下的相对润滑脂寿命。此外，该测试方法测量了低速（1 r/min）和高速（12000 r/min）下的运行扭矩。 1.2除以gcm测量的扭矩外，以英寸-磅单位表示的值应视为本试验方法中的标准值。括号中给出的SI值仅供参考。 1.3 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。 ====意义和用途====== 本试验方法是一种筛选试验，用于区分在高温下运行的滚珠轴承中润滑脂的预期寿命。如果扭矩是选择润滑脂的一个因素，则测试方法提供了在低（1 r/min）和高（12000 r/min）速度下的测量。

1.1 This test method describes a procedure for the determination of grease life and torque in small bearings. Although this test method is not the equivalent of a long-time field-service test, it is intended to predict the relative grease life at high temperature in a reasonable period of testing time. In addition, this test method measures the running torque at both low (1 r/min) and high (12 000 r/min) speeds. 1.2 Except for torque, which is measured in gcm, the values stated in inch-pound units are to be regarded as the standard in this test method. The SI values given in parenthesis 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. ====== Significance And Use ====== This test method is a screening test to differentiate among the expected life of greases in ball bearings running at high temperatures. If torque is a factor in selection of a grease, the test method provides for measurements at both low (1 r/min) and high (12 000 r/min) speeds.