Worm gearboxes and helical worm gearboxes / geared motors (S and SS)

The degree of efficiency in Rehfuss high performance worm gearboxes and helical worm gearboxes is more than 90%. All worm shafts are made from case hardened alloy steel and the flanks are precision ground. The worm wheels are made from special wear-resistant bronze. Helical worm gears are equipped with a helical gear. Worm gears with shrink disc, torque limiter, as well as adjustable backlash designs are also part of our standard product range.

Worm gearboxes and helical worm gearboxes type S and SS are high-Performance gearboxes in universal design. The housings are made from high quality cast iron. The rugget walls and inner ribbing ensure extremely torsional stiff and noise dampening housings. The external ripping provides a rapid heat conducting.

Type S und SS


Technical characteristics:
  • Optimised size/performance ratio
  • Designed for permanent operation under rough circumstances
  • Above average lifespan
  • Housing produced from high quality grey cast iron with rugged walls and internal ribbing
  • Extreme torsional resistance and low noise
  • Case hardened worm shafts and worms with precision ground flanks
  • Worm wheels produced from unique bronze
  • Superior smooth operation
  • Space saving angular drive
  • Helical worm gearboxes equipped with helical gear wheel
  • Low engine speeds

  • Basic mounting, flange mounting or universal design
  • Output shaft available as solid shaft or hollow shaft
  • Shrink disc, torque limiter,as well as adjustable backlash
  • Second shaft end for fitting encoders or brakes
  • Torque arm
  • IEC-adaptor
  • NEMA version
  • Free input shaft
  • ATEX specification according to directive 94/9/EG

Perfomance data:
Character Value Unit
Power range up to 8.27 kW
Torque range up to 1,015 Nm
Ratio range 4.830 - 457.778 i

Values apply to an input speed of 1,500 1/min.
Higher performance gearboxes available on request