Worm Drive

A worm drive is a gear arrangement in which a worm (which is a gear in the form of a screw) meshes with a worm gear (which is similar in appearance to a spur gear, and is also called a worm wheel). The terminology is often confused by imprecise use of the term worm gear to refer to the worm, the worm gear, or the worm drive as a unit.

Like other gear arrangements, a worm drive can reduce rotational speed or allow higher torque to be transmitted. The image shows a section of a gear box with a worm gear being driven by a worm. A worm is an example of a screw, one of the six simple machines.

Read more about Worm Drive:  Explanation, Types, Direction of Transmission, Applications, Left Hand and Right Hand Worm, Manufacture

Famous quotes containing the words worm and/or drive:

    Like vinegar on a wound is one who sings songs to a heavy heart. Like a moth in clothing or a worm in wood, sorrow gnaws at the human heart.
    Bible: Hebrew, Proverbs 25:20.

    ...I don’t have an inner drive to do as well as anybody else ... I have a great pleasure in writing and part of that is political and part of that is I’m surprised that I’ve done as well as I have. I really am just surprised.
    Grace Paley (b. 1922)