本文介绍了机车车辆车轴用滚动轴承的型式及其负载、寿命的确定方法,提出了各种车轴滚动轴承的配合、间隙和走行距离目标值。论述了车轴轴承滚动接触疲劳机理,接触部位的应力分布及裂纹和点蚀的发生原因以及车轴轴承的润滑与温升,轴承润滑脂的管理标准及轴承间隙,润滑脂封入量对轴承温升的影响等。 In this paper, the type of rolling bearing for locomotive axles and the method of determining the load and the service life of axles are introduced, and the target value of the fitting, clearance and running distance of various kinds of axles rolling bearings are put forward. Discusses the rolling contact fatigue mechanism of the axle bearing, the stress distribution of the contact part and the causes of cracks and pitting corrosion as well as the lubrication and temperature rise of the axle bearing, the bearing grease management standards and bearing clearance, Influence and so on.