分析了过去的试验数据和实际使用中失效的轴承,并提出了再现渗水润滑条件下轴承疲劳寿命的试验方法,从而能够清楚地观察到轴承的剥落过程,并进一步研究材料参数对轴承寿命的影响。结果表明:渗水润滑条件下轴承失效起源于滚动接触表面的非金属夹杂物。疲劳裂纹的扩展最初是在晶界之间,然后穿晶,最终导致剥落。介绍了NSK开发的轧机用耐水(WTF)轴承。在渗水润滑条件下,它的寿命大约是传统轴承的3倍。 The past experimental data and the bearing which failed in actual use were analyzed and a test method for reproducing the bearing fatigue life under water seepage lubrication was put forward so as to clearly observe the peeling process of the bearing and to further study the influence of the material parameters on the bearing life . The results show that the bearing failure originates from non-metallic inclusions on the rolling contact surface under seepage lubrication conditions. Fatigue crack growth is initially between the grain boundaries, and then transcrystallization, eventually leading to spalling. Introduced NSK developed water-resistant rolling mill (WTF) bearings. Under seepage lubrication conditions, it has a life expectancy of about 3 times that of conventional bearings.