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Worm gears: redirecting and self-locking.

 

Worm gears allow a redirection of power by, in most cases, 90°. These gears have a rather low efficiency but provide the major advantage of being self-locking whilst offering a high gear reduction. Worm gears are, in particular, used as power gears in, for instance presses, rolling mills, in materials handling technology or also in mining machines.