"THK" stands for " Toughness," " High Quality," and " Know-how." We aim to contribute to the improvement of society and development of industry by focusing on these three principles in our technology development and product manufacturing processes. On this site, we will take the opportunity to introduce a variety of technologies and products that we have developed.THK has also developed many other unique mechanical products, including the Ball Spline, Ball Screws and Link Balls, which we manufacture and supply to customers worldwide.
THK solved the problem, previously considered too difficult, of linear motion with rolling contact by applying its unique technological capabilities, and in 1972, it became the first company in the world to develop and commercialise the Linear Motion (LM) Guide. Our linear motion system enabled rapid improvements in the accuracy, speed and labor-saving potential of advanced mechatronic instruments. With THK's LM Guides, machine tools and industrial robots became capable of ultra-precise operations, and semiconductor-manufacturing devices could now operate in submicron units. More recently, the system has been applied in liquid crystal manufacturing lines, railway carriages, assistive vehicles, medical equipment, skyscrapers and residences, and amusement devices. The use of LM Guides has truly expanded beyond all prior boundaries.