恩斯克投资有限公司是日本精工株式会社（NSK Ltd.）的中国总部，全权负责中国大陆及香港的生产、技术、销售及营运。
1960年代初，NSK开始进入中国进行轴承相关的技术交流。1992年在北京设立第一个事务所，1995年在江苏省昆山市建立第一家工厂，迄今，旗下在中国设立了生产、研发、销售公司及子公司30多家，遍及中国各地。
恩斯克投资有限公司依托NSK集团总部的领导与支持，致力于向经济持续高速发展的中国引入先进的生产技术和管理经验，逐步确立并完善以“生产质量为基石，市场为导向，技术为核心”的三位一体化事业体制。同时，NSK还不断加快这一体制的本地化进程，旨在为中国的广大用户提供更直接、更完善的服务。
NSK(China) Investment Co., Ltd. is headquarter of NSK Ltd. in China, solely responsible for mainland China and Hong Kong production, technology, sales and operations.
In the beginning of the 1960s, NSK entered into China for the related bearing technical exchange programs. The first office was established in Beijing in 1992 and the first plant in Kunshan city, Jiangsu province was inaugurated in 1995. To date, NSK has set up over 30 production plants, R&D centers, sales offices and subsidiaries throughout China.
With leadership and support from NSK headquarter, NSK China is committed to a sustainable rapid economic development. Through introduction of advanced production technology and management experience, NSK China gradually establish and improve its integrated management system of “Production quality as cornerstone, Market-oriented and Technology as core”. Meanwhile, NSK continues to accelerate the localization process of the integrated system to provide a more direct and complete service for customers in China.