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日本精工株式會社 （英文名稱：NSK Ltd.） 
NSK 致力于深入開發高速旋轉切割技術，憑借這項卓越的技術，NSK 向牙醫業和其他行業提供了眾多高品質、低成本，而且高性能的產品。根據“開發用戶需要的產品”這一理念，NSK 以卓越的生產工藝和創新技術為依托，不斷開發出適時適需的新產品，滿足客戶多樣化的需要。

今天，NSK 產品在全世界 120 多個國家銷售和使用。每個 NSK 產品都是在廠內設計、開發和制造的，并通過 NSK 的全球服務網絡交付到您的手中。我們的優勢來自于堅持推行“在廠內完成一切”的理念，從制造夾具、小部件到測試設備，無不親歷親為。這能夠使我們縮短上市時間，降低生產成本，并能實現生產高質量產品的目標。

NSK 公司在高速旋轉切割技術方面的投資在不斷的增加。公司決心迎接 21 世紀不斷變化的新挑戰，為牙科醫業和工業的發展盡自己的一份力。

挑戰會激勵我們為滿足 21 世紀的時時變化的需求而不斷努力，為牙科行業的發展和工業應用的增長作出自己的貢獻。

NSK自1916年在日本率先開始生產軸承以來，作為日本的軸承先鋒，開發與提供各類軸承，為產業的發展和機械的進步做出了巨大貢獻。現在，NSK在軸承領域，穩居日本首位，同時在全世界也位居前列。另外，NSK還利用生產軸承錘煉出的精密加工技術，從很早以前就開始通過向汽車零部件、精密機械產品、電子應用產品等領域的進軍，推動多方位的事業拓展。從20世紀60 年代開始，積極開拓海外市場，迄今，NSK集團已達到在26個國家設有海外銷售網點共76個，在12國家建立海外生產基地共40個（截至2010年3月12日）的規模。NSK通過全球網絡，努力促進開發能力、生產能力、銷售能力及經營管理能力的相互強化，爭取更大地進步。


NSK has made a vital contribution to the growth and achievement of various machinery industries throughout its history. As a comprehensive bearing manufacturer, NSK responds to the needs of a wide variety of fields.

NSK  inaugurated its business in November 1916 and produced the first ball bearings made in Japan. Since then, NSK Ltd. has developed a full range of bearings, which have been sold throughout the world and contributed greatly to the development of industries and the advancement of technology.

The company has used its expertise in precision machining technology, refined through years of bearing manufacturing to diversify into automotive products (steering column, EPS, etc.), precision machinery and parts (ball screw, linear slide, etc.) and mechatronic products. Since the 1960s, NSK has been aggressively developing its overseas markets in four key areas: the Americas, Europe, Asia, and Japan. At present, NSK Ltd. has 127 overseas sales operations in 25 countries, 12 global research and development centers, and operates more than 60 international manufacturing locations, including Clarinda, Iowa.

The first factory of NSK outside of Japan was founded in Brazil, in the estate of S?o Paulo in Suzano in the year of 1972.

NSK bought the RHP brand of bearings in 1990.

NSK has also made big developments in spherical roller bearings and on the Continuously variable transmission (CVT).

NSK is a World Bearing Association (WBA) member.