червяк; шнек
- conveying worm
- conveyor worm
- cradle worm
- cradle-adjusting worm
- cradle-drive worm
- cylindrical involute worm
- cylindrical worm
- double-enveloping worm
- drop worm
- dropping worm
- dual lead worm
- duplex worm
- enveloping worm
- feed worm
- four-start worm
- globoidal worm
- grinding worm
- helicoidal worm
- high-lead worm
- hourglass worm
- index worm
- involute worm
- left-hand worm
- master control worm
- multiple-threaded worm
- multithreaded worm
- n-slot worm
- overslung worm
- quadruple worm
- right-hand worm
- single-thread worm
- single-threaded worm
- square-threaded worm
- thread-convolute worm
- thread-space convolute worm
- throated worm
- waisted worm