THK's creative ideas and unique technology made the company worldwide pioneers in the development of the Linear Motion (LM) Guide mechanism. Today, our LM Guide devices are an indispensable component of mechanical and electronic systems in a wide variety of industries.
THK has also developed many other unique mechanical components, including the Ball Spline, Ball Screws and Link Balls, which are manufactured by us for supply to customers worldwide.
The company name "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.
In 1971, THK was established in Meguro-ku, Tokyo, under its original, Toho Seiko Co., Ltd.
Development of "LM Guide"
In 1972, THK became the first company in the world to develop a method of providing linear motion with rolling contact, and began to manufacture and selling the result, the Linear Motion (LM) Guide.
World-first development of Caged Ball LM Guides
In 1996, THK developed "Caged Ball LM Guides", which offer significantly increased performance over conventional products.
As human and environment friendly products, Caged Ball LM Guides have the following outstanding features:
- Long service life with reduced maintenance needs
- Low noise emission and acoustics
- Ultra-high-speed operation
- Low dust emission
- Very smooth operation