High-precision and backlash-free technology
Strain wave gears are widely used in robotics and automation. Our development engineers have optimized the proven technology and achieved continuous improvement of the product features as well as the processes and manufacturing methods. Your benefits: excellent performance data, comprehensive customization and integration options, automotive-compliant production, optimum cost-effectiveness and a unique service level.
Functional principle
Strain wave gears consist of just three components: Wave generator, flex spline and circular spline (circular spline). They are characterized by power transmission via an elastic element, the flex spline. This is a cylindrical, deformable steel component with external teeth, which takes on its elliptical shape when the wave generator is inserted. In combination with the permanent circumferential multiple-tooth meshing of the flex spline and circular spline, absolute freedom from backlash, exceptional transmission accuracy and high torsional rigidity can be achieved.
Structure
The wave generator is usually the drive element of the gearbox. It is inserted into the flex spline so that the teeth of the flex spline and circular spline mesh. The output can be via the flexspline or the circular spline. The external toothing of the flex spline has two teeth less than the internal toothing of the circular spline, thus enabling a transmission ratio.
The three components:
A cylindrical rigid ring with internal gear teeth
A cylindrical, flexible, thin-walled steel component with external gear teeth
A hub with an elliptical outer contour on which a special, radially flexible ball bearing is mounted
We have the right gearbox
Our strain wave gears stand for maximum performance, the highest level of quality, incredible flexibility and consistent customer orientation. The flexible modular product system and our unique engineering services give you maximum design freedom.
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Functionality
The elliptical wave generator deforms the flex spline via the ball bearing. The flex spline in turn meshes with the internally toothed circular spline in the opposite areas of the large elliptical axis. The rotary movement of the wave generator shifts the large elliptical axis and therefore also the meshing area of the teeth. As the flex spline has two fewer teeth than the circular spline, there is a relative movement between the flex spline and the circular spline by one tooth after half a revolution of the wave generator and by two teeth after a full revolution.
Your advantages at a glance
- Absolute freedom from backlash
- Outstanding transmission and repeat accuracy
- Small dimensions and low weight
- High torque capacity
- High reduction ratios in one stage
- High efficiency
- High torsional rigidity
- Central hollow shaft possible
- High reliability and long service life
- Maintenance-free
Development and production according to automotive standards
Strain wave gears are developed and manufactured in accordance with automotive standards (IATF certification 16949) on modern production systems including the latest testing and measuring technology and patented manufacturing processes. It is characterized by a high degree of automation, maximum flexibility and a high standard of cleanliness and guarantees large volumes, short development cycles, complete traceability and a high degree of cost-effectiveness - from one-piece flow to large-scale production.
Automotive-compliant production:
- Highest level of quality
- Large quantities
- Automated production processes
- High process reliability
- Complete traceability
- High process competence
- High degree of economic efficiency
- Short development cycles
*Produced at the Ovalo GmbH site in Limburg (100% subsidiary of Nabtesco Europe GmbH)
We are the world's largest manufacturer of cycloidal precision gearboxes and offer you the most comprehensive and deepest product portfolio on the market. Our powerful cycloidal gears guarantee efficient, reliable processes and ensure significant performance improvements and cost savings in your application!
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