新干线电动车已经实现高速化(300~350km/h),使用传统的车轴轴承润滑油时,随着轴承转速的增加以及轴箱重量的减轻,因油量减少使得使用条件变得严格起来。人们担心润滑油的寿命缩短,从而引起车轴轴承的热胶着及磨耗的加剧。因此,日本铁道综合技术研究所开发了适应该严格使用条件 Shinkansen electric cars have been speed (300 ~ 350km / h), the use of traditional axle bearing lubricating oil, with the increase in bearing speed and axle box weight reduction, due to reduced fuel consumption makes the use of conditions become stringent. People are concerned about the shortened life expectancy of lubricants, resulting in increased thermal adhesion and wear of axle bearings. Therefore, the Japan Railway Institute of integrated technology developed to adapt to the strict conditions of use