They're cheaper, lighter and easier to operate than worm drives.

Elevons were mounted on the trailing surface and were controlled via a unique worm drive.

It had a wooden frame, steel wheels, a worm drive and chain gearbox.

In early Fordsons, the worm drive was located at the top under the driver's seat.

The worm drive was relocated to solve this problem and also allowed larger rear wheels which improved traction.

Like other gear arrangements, a worm drive can reduce rotational speed or allow higher torque to be transmitted.

There are three different types of gears that can be used in a worm drive.

In the era of sailing ships, the introduction of a worm drive to control the rudder was a significant advance.

For more precise position control, a worm drive may be used.

It had a worm drive and all power pickup was through the bipolar trucks that carried the tender.