Caixa de engrenagem sem fim

Worm gearboxes are used when two shafts are arranged at 90° angles and a high transmission ratio is required in a single stage. These gearboxes generally consist of a worm shaft that can be single- or multiple-threaded, and a worm wheel that is driven by the worm shaft.

Worm gearboxes run quietly due to the low output speed alone. They are self-locking at high transmission ratios. Worm gearboxes cannot be driven in reverse as a rule. They require very little space.

The materials chosen for the gears is of immense importance, among others in order to minimise wear. Possible applications include e.g. the alignment of solar panels or in the main drives of material feed systems.