worm gear

Definitions

Cars & Driving

  • noun a device consisting of a short, threaded shaft (worm) that mates with a gearwheel (worm wheel) so that rotary motion can be transferred between two shafts at right angles to each other

Electronics

  • A gear which changes the direction of the axis of a rotary motion by utilizing a shaft with a threaded surface, called worm (1), and toothed wheel, called worm wheel.
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