The registered trademark HET Gear® stands for «High Efficiency Turbogear». These gearboxes are the most efficient ones worldwide and have been specifically developed for use in energy generation and for driving compressors.

✔︎ HET Gear® gearboxes can be operated in two different ways as required: either as conventional turbo gearboxes or as HET Gear® gearboxes, where the toothed wheels rotate in a partial vacuum to significantly reduce ventilation losses. Special toothing correction is used to ensure that there is always an optimum toothing contact pattern in both operating modes.

✔︎ This aspect of gearbox power dissipation takes on greater significance specifically in the power generation sector. MAAG/RENK-MAAG has built up and developed its experience in the manufacture of vacuum gearboxes in the range of 15 MW–120 MW output since 1996. The construction of HET Gear® turbogears is patented by RENK-MAAG.