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为了实现新干线用牵引电动机轻量、高速、低噪声，以及既有线用牵引电动机实现低成本、减少维修等，在新干线用牵引电动机上采用了一些新技术：通风冷却技术，在定子上开通风扎；采用无框架定子和铝托架结构、陶瓷绝缘轴承以防电化学腐蚀；开发了润滑性良好、使用寿命长的润滑脂以及在既有线用的牵引电动机上采用铝转子、在轴承外圈喷涂PPS成形树脂等；同时还开发了不拆卸轴承也能供给和排泄润滑脂的新结构轴承。
In order to achieve the Shinkansen traction motor with light weight, high speed, low noise, as well as the existing line traction motor to achieve low cost, reduce maintenance, etc., in the Shinkansen traction motor using a number of new technologies: ventilation cooling technology, open the stator Wind bar; frameless stator and aluminum bracket structure, ceramic insulated bearings to prevent electrochemical corrosion; developed a good lubricity, long service life of the grease as well as the existing line with a traction motor using aluminum rotor, outside the bearing Circle spray PPS forming resin, etc .; also developed a new structure can also supply and discharge grease without disassembling bearings.