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已研制出适于新干线300km／h电动铁道车辆牵引齿轮和齿轮箱轴承润滑用的齿轮油。新干线300km／h电动车辆的主要润滑问题是齿轮箱的温升。炎热季节，有些齿轮箱的油温可达150℃，因此，要求新干线300km／h电动车用的齿轮油，除承载能力外，还应有足够的热安定性和氧化安定性，以满足高温条件下长时间运行的要求．所以，开发了两种适合这种要求的新型抗热齿轮油．在试验室对新开发齿轮油的热安定性和氧化安定性进行了测试，并取得了令人满意的结果。
Has developed for the Shinkansen 300km / h electric railway vehicles traction gear and gearbox bearing lubrication with gear oil. Shinkansen 300km / h The main lubrication problem for electric vehicles is the temperature rise of the gearbox. In hot season, some gearbox oil temperature up to 150 ℃, therefore, requires the Shinkansen 300km / h electric vehicle gear oil, in addition to bearing capacity, but also sufficient thermal stability and oxidation stability, to meet the high temperature conditions Long-running requirements. Therefore, two new types of heat-resistant gear oils have been developed that meet this requirement. The thermal stability and oxidation stability of the newly developed gear oil were tested in the laboratory and satisfactory results were obtained.