Zero Backlash Rack and Pinion

Download Kamo Seiko TCG Rack and Pinion Catalogue

TCG Runner - The Linear Drive Alternative

Jeysons Industries is an all India distributor of Kamo Seiko, Japan.

Kamo Seiko offers an advanced technology that revolutionizes linear motion. The TCG Runner System provides zero backlash, very high positional accuracy, unlimited length, very high speeds, 99% efficiency, high rigidity, low noise, low maintenance, corrosion resistance, and long life. This opens up new design possibilities and provides the capability to achieve much higher levels of performance in machine designs.

Zero Backlash /High Precision
The TCG Runner’s innovative meshing action provides zero backlash and positional accuracy up to ± 20 um [± 0.00079 in.] in both directions by maintaining opposing contact with two or more teeth at all times. Each tooth profile is precisely measured relative to the first to ensure that high positional accuracy is maintained and cumulative error is eliminated.

High Speed Capability
The TCG Runner system can achieve speeds, up to 11 m/sec (36.1 ft/sec), that can normally only be obtained by linear motors while providing high positional accuracy. Even at these speeds, the extremely low friction design does not create heat or wear on components.

Unlimited Travel Length
The linear TCG Runner system is modular in design with 1-meter and 1/2-meter segments that can be combined as needed to meet application requirements. Segments can also be cut to shorter lengths as needed. This greatly improves stocking, availability, cost, and replaceability. Segments are joined with a special tool that uses the rack teeth to transfer the positional accuracy of the previous rack to the next.

The unique TCG Runner design eliminates many of the limitations of current linear drive systems like:

Ball Screws: Limited by critical speed, maximum speed, cumulative error, vibration, thermal expansion, supplemental cooling, noise, low efficiency, maintenance, and life.

Traditional Rack and Pinion: Limited by low accuracy and speed, backlash, tooth fatigue, noise, high cost of dual and split pinion systems, high maintenance, and short life.

Belt Drives: Limited by low accuracy, backlash, low load capacity, short lengths, belt stretch, and low rigidity.

Linear Motors: Limited by low load capacity, high cost, strong magnetic fields, and liquid cooling.


  • Robotics
  • Gantry Systems
  • CNC Cutting Systems
  • Machine Tools
  • Inspection Devices
  • Material Handling
  • Metal Fabrication
  • Automation Equipment