NSK Ltd. engages in the manufacture and sale of bearings, automotive products, precision machinery and mechatronic products. It operates through the following segments: Industrial Machinery, Automotive, and Others. The Industrial Machinery segment produces and sells industrial machinery bearings, ball screws, and linear guides. The Automotive segment manufactures and sells bearings for car and automotive component manufacturers, steering columns, and automatic transmission components. The Others segment deals with the production and sale of steel balls, machineries, and systemized products such as photo-fabrication exposure equipment. The company was founded by Korekiyo Takahashi and Takehiko Yamaguchi in February 1914 and is headquartered in Tokyo, Japan.