THK

THK was established in Japan in 1971 as an engineering company focused on motion and mechanical technologies. The business's defining development came in the early 1970s, when it commercialized a linear motion guide using circulating rolling elements. The innovation made it possible to guide machine components with lower friction and high repeatability than many conventional sliding systems. It became particularly valuable in machine tools and other equipment where positioning precision, durability, and stable operation were important. After establishing the linear motion guide as its core product, THK broadened its engineering portfolio. Ball screws and ball splines extended the company's ability to provide screw-driven movement and torque-transmitting linear motion. Crossed-roller products and other rolling-element components addressed applications requiring rigidity, compactness, and precision. The resulting product range allowed THK to serve equipment builders with multiple related components rather than a single product category. The company expanded outside Japan as industrial automation and precision manufacturing became increasingly international. THK developed overseas sales, production, and service capabilities in North America, Europe, China, and other Asian markets. Its components became part of machine tools, semiconductor and electronics equipment, industrial robots, automated production systems, transportation equipment, medical devices, and other specialized machinery. The company has generally operated as an upstream business-to-business supplier: its products are incorporated into customers' machines and are selected through engineering specifications and application requirements. THK subsequently added actuator and electromechanical offerings and developed products for applications beyond conventional factory equipment. These areas include electric actuators, motion systems, vibration-control technologies, and seismic-isolation products. The diversification reflects the broader use of precision motion in robotics, logistics, medical equipment, construction machinery, infrastructure, and mobility-related applications. THK's growth has remained closely linked to capital spending. Demand from machine-tool builders, semiconductor equipment manufacturers, electronics producers, and factory-automation customers can rise and fall with industrial investment cycles. This cyclical exposure has encouraged the company to maintain a broad geographic and application base while investing in engineering, production capacity, and product development. In the modern period, THK has continued to present itself as a motion-technology company rather than only a component maker. Its corporate materials emphasize the combination of mechanical technologies with sensing, data, and automation-related capabilities. The company remains publicly listed in Japan and continues to operate under the THK brand from its Tokyo headquarters, with international subsidiaries, manufacturing operations, sales organizations, and technical support serving industrial customers worldwide.

• 1972

  Linear motion guide introduced

  [1]THK official corporate websitethk.com

  THK commercialized its early linear motion guide technology, establishing the product category that became the foundation of the company.

• 1971

  Company established

  [1]THK official corporate websitethk.com

  THK was established in Japan and began building a business around precision mechanical and motion technologies.

• International expansion

  [1]THK official corporate websitethk.com

  THK expanded sales, production, and technical-support activities across North America, Europe, China, and other Asian markets.

• Portfolio diversification

  [1]THK official corporate websitethk.com

  The company expanded from linear guides into ball screws, ball splines, actuators, crossed-roller products, vibration-control technologies, and related motion components.

A global B2B precision-motion and mechanical-component specialist, positioned around reliable, high-accuracy linear motion for industrial equipment and automation.

• Linear motion guide · 1972

  LM Guide

  THK's signature linear guide product uses rolling elements circulating between a rail and a carriage to provide constrained, low-friction linear movement. LM Guides are used in machine tools, automation equipment, semiconductor and electronics machinery, robots, inspection systems, and other equipment requiring accurate and repeatable travel. Product families vary by load capacity, rigidity, size, accuracy, and environmental requirements.

• Mechanical transmission component

  Ball screws

  THK ball screws convert rotary motion into precise linear motion through recirculating balls between a screw shaft and nut. They are used in machine tools, industrial equipment, actuators, and other applications requiring controlled positioning, repeatability, and efficient power transmission. Configurations address different speed, load, accuracy, and service requirements.

• Linear and rotary motion component

  Ball splines

  Ball spline systems transmit torque while permitting smooth axial movement. Their rolling-element design supports applications in robotics, automation, actuators, machine tools, and specialized mechanisms where a shaft must move linearly while also carrying rotational force.

• Electric and linear actuator

  Actuators

  THK supplies linear and electric actuator products that combine guided motion, drive mechanisms, and related mechanical elements into more integrated motion assemblies. They are intended for equipment builders seeking compact, repeatable movement in automation, handling, inspection, medical, and other industrial applications.

• Precision bearing and guide

  Crossed roller products

  Crossed roller bearings and guides use orthogonally arranged rollers to provide high rigidity and precision in compact mechanisms. They are suited to rotary or linear stages, measuring equipment, semiconductor machinery, robotics, and other systems where limited deflection and accurate movement are required.

• Infrastructure and vibration control

  Seismic isolation and vibration-control products

  THK applies its mechanical and motion expertise to products designed to reduce the transmission of vibration or protect equipment and structures from seismic movement. These offerings extend the brand beyond factory-automation components into infrastructure, buildings, industrial facilities, and equipment-protection applications.

1. 1THK official corporate websitethk.com
2. 2THK corporate informationthk.com
3. 3THK product informationthk.com
4. 4Tokyo Stock Exchange listed company informationjpx.co.jp