THK

The company's name "THK" stands for "Toughness", "High Quality" and "Know-how". Our goal is to promote social progress and industrial development by following these three principles in the process of technology development and product manufacturing.
The pioneer of LM guide rail
The moving parts of the machine can be divided into rolling parts, linear moving parts or combination of both. With the development of rolling bearings about 110 years ago, rolling contact has become the standard method to realize rolling motion. A great technological revolution was set off. Rolling contact not only saves kinetic energy, but also keeps the friction resistance at the lowest level, so it can greatly improve the mechanical performance. However, although the value of such development achievements in the field of linear motion may be ten times higher than that, the technology of realizing linear motion through rolling contact can be regarded as late.
Through its unique technical strength, THK solved the problem of rolling contact linear motion which was once considered difficult to solve, and became the first company in the world to develop and commercialize linear motion (LM) guide rail in 1972. Using our linear motion system can quickly improve the accuracy and speed of advanced electromechanical devices, and can save manpower investment. THK's LM rolling guide can enable machine tools and industrial automatic machines to operate with ultra-high precision, and can enable semiconductor manufacturing devices to operate in subminiature devices. Recently, the system has also been applied to LCD production lines, railway passenger cars, auxiliary vehicles for the disabled, medical equipment, skyscrapers and residences, and entertainment facilities. The use range of LM rolling guide has broken through all previous limitations.
LM rolling guide is the main product of our company, which is the first product in the world to put linear rolling parts into practical application. It makes it possible to develop high-speed machine tools with high precision, high rigidity, energy saving and long service life.