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Technology market — EC-gearing

EC gearing, a new kind of toothed engagement — is a fundamental resource and energy saving development in the field of machine-building industry

A new kind of gearing called eccentrically cycloidal (EC) is developed,
on its basis the manufacture of almost any type of gearbox is possible
(cylindrical, planetary and bevel EC-gearboxes, and also
rack-type EC gears for mechanisms with rectilinear motion).
The new kind of gearing is asserted by 7 patents of Russian Federation.
International applications are filed.
How it works
Press about us
Expert opinion

Figure shows the comparative dimensions of pinions with EC gearing and involute gearing with the same parameters (U = 9, equal loading torque).

  1. Several times reduction of mass and overall dimensions;
  2. Increased gear ratio U in one stage up to 30
    (in the involute gearing U<= 8);
  3. It is allowed to increase misalignment and center-to-center clearance in the EC gearing 5-10 times compared with functioning standard parameters for the involute gearing without loss of force characteristics in the engagement;
  4. Efficiency in the EC gearing approaches the rolling efficiency 99,9% for Кfr = 0.075, since the meshing point is in the pitch point.
Download the EC-gearing information.

Look, how our technology works:


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STAHL CraneSystem GmbH
Digital Smart System LLC, California, USA
SME Tomsk Electronic Company
Research and Production Company Micran
RussNeft corp.
Tomskgazprom corp.
Electroagregat corp.
Transputmash Trade Company, JSC
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