THK manufactures the widest range of linear motion products, including LM guides, ball screws, mechanical actuators, ball splines and more.  THK’s creative ideas and unique technology made the company a worldwide pioneer in the development of the Linear Motion (LM) Guide mechanism. Today, its LM Guide devices are an indispensable component utilized in high-performance applications in industrial robots, fiber optics and photonics, vision systems, machine tools, assembly, semiconductor equipment, medical component laser machining, electronic manufacturing, and other industrial automation applications


A Linear Guide, or Linear rail, is a system which helps with the movement and supporting of the load of a piece of equipment in a linear fashion, either vertically or horizontally. We have high load, high precision, Caged ball and Non Caged assemblies in stock.  Miniature versions of this system are also stocked in hardened stainless steel.

  • Four way equal load in all directions
  • Automatic self adjusting
  • Low centre of gravity and torsional rigidity
  • High precision and high speed
  • Miniature ranges down to 2.5mm high
  • High load capacity
  • Compact and low circular guides

High precision and high speed

LM Actuator

THK high performance linear actuators, based on proven LM guide technology are built in ball screw or drive belt options.

SKR   high accuracy ball screws range for a wide range of applications.

KR     cost effective, one piece construction creates a compact and competitively priced actuator.

GL     high speed range using ball screws or belt driven for movement up to 300mm/second.

  • Light weight rigid construction
  • High rigidity
  • Extremely accurate motion
  • Smooth and almost silent operation

High speeds

Ball Screws & Miniature Ballscrews

THK full range of high performance and cost effective rolled and ground ball screws. Miniature ranges and high precision lead accuracy of C3 and C5 classes available.

Ground, rolled, miniature and high speed ranges in a variety of sizes and styles.

  • High rigidity
  • Minimal backlash and preloaded options
  • Fast feed speed
  • High positional accuracy
  • Easy to install and mount
  • Miniature screw diameters from 4mm

Product Selector

Choosing the correct product for your needs has never been easier. THK have created a handy online selection tool to help you to spec the correct product for your needs.

We hold stock of standard ranges and can cut to required size. Immediate delivery available.  Non standard stock can be delivered in 10 working days.