Nippon Seiko Co., Ltd. (Head Office: Shinagawa-ku, Tokyo, Representative: Director, Representative Executive President, CEO Toshihiro Uchiyama, hereinafter referred to as NSK) has successfully developed a 'silent thrust needle roller bearing' that supports the needs of automobile electrification. This product helps to improve the comfort of electric vehicles (hereinafter referred to as EV) and plug-in hybrid vehicles (hereinafter referred to as PHV) motors through the use of quiet technology. NSK expects annual sales of this product to reach 1.5 billion yen by 2021. Development background In recent years, EVs and PHVs have accelerated their popularity due to the increasing global demand for environmentally friendly vehicles. The previously inconspicuous noise generated by the bearings running in the engine environment is now noticeable in the drive motor environment. Therefore, NSK has been working to promote the development of quietness for thrust needle roller bearings, which are widely used in many products such as transmission mechanisms. Product Features By improving the components 'needle roller', 'washer' and 'cage' of the thrust needle roller bearing, the decibel value of the noise generated by the bearing has been reduced by about 10%. Product Effects This product contributes to the improvement of the quietness of EV and PHV motors during operation and contributes to the electrification of automobiles.
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