Our worm gearboxes are quite unlike any other. We have been proving this with our patented CAVEX^® gearing system in almost all industrial sectors across the world for more than 60 years. Our unique gearing geometry is far superior to standard worm gearboxes.

The name CAVEX^® says it all, composed from the Latin word concavus, the profile on the worm, and convexus, the profile on the worm wheel. Thanks to worm teeth with a concave flank profile (concave worm) paired with convex worm wheels, CAVEX^® worm gearboxes are far superior to comparable worm gearboxes of equal size. This combination of the teeth ensures better osculation of the flanks and thus leads to a lower flank pressure (Hertzian stress) and a better build-up of the lubrication film. The result: A higher torque transmission and an increase in service life by 30% due to lower wear and tear compared to other worm gearing systems.

CAVEX^® gearboxes – industrial gearboxes based on a modular design:

• Single-stage basic gear for 18 different construction sizes with a centre distance of a=63mm to a=630mm, in certain applications even up to a=900mm
• Simple expansion of the basic gear with a helical pre-stage with transmissions from 2 to 5 or with a worm gear pre-stage with transmissions from 5 to 70 for a total transmission of up to approximately 5000. Adapting to the desired output torque is usually possible without a frequency converter.

• Single-stage CAVEX^® gear for standard transmissions from 5 to 70
• In addition, single-stage CAVEX® gearboxes with ratios over 100 are available on request
• Transmissions of up to 350 can be achieved with the addition of a helical or planetary pre-stage
• With two worm gear stages, a higher standard transmission of up to 5000, in certain customer applications of over 10,000, can be achieved

Energy efficiency plays an increasingly important part when deciding which gearbox to buy. Our CAVEX®-worm gearbox boasts efficiency rates of up to 97%. It can easily compete with any type of gearbox (e.g. bevel helical gears or planetary gears etc.). This defeats the argument that worm gearboxes have a low efficiency rate.

Over 65 years of experience in the development of worm gearboxes speak for themselves. It is not unusual to find gearboxes that still work reliably after more than 30 years’ service. Quality-made German products as good as ever!

• Our gearboxes are exceptionally quiet because of the CAVEX^® gearing system with its optimised lubrication film build-up.
• This is enhanced by the use of anti-vibration casing material such as grey cast iron.
• Due to the high transmission rates in the various stages, fewer parts are needed. This leads to a reduction in the gear mesh which also reduces noise.

• Optional adaption of our standard gearboxes to the customer’s exact specifications
• Industry-specific adaptation of our standard gearboxes
• Developing tailor-made gearboxes for individual applications