Definition of worm gear in English:

worm gear


  • A mechanical arrangement consisting of a toothed wheel worked by a short revolving cylinder (worm) bearing a screw thread.

    • ‘This pinion received its power through a set of extra heavy worm gears controlled by an open and cross belt, producing the reverse movement for tilting the saw in either direction.’
    • ‘We don't have to use hydraulic motors or worm gear reduction drives.’
    • ‘In the click reel, the wooden screw acts as a continuous wedge turning the worm gear.’
    • ‘An electric motor drives the other input shaft via a worm gear that wraps around the planetary gearset.’
    • ‘It features worm gears at both the left end of the rear hub and the right end of the front hub that are connected by rigid, rotating rods.’