Worm screw

A worm drive is a gear arrangement in which a worm meshes with a worm gear The two elements are also called the worm screw and worm wheel. Explanation ‎Direction of transmission ‎Applications ‎Left hand and right hand. Worm gears are usually used when large speed reductions are needed.

The reduction ratio is determined by the number of starts of the worm and number of teeth on the worm gear. Another characteristic of worm manufacturing is the need of specialized machine for gear cutting and tooth. BQ Double Worm Screw (L)50mm - BQ for all your home and garden supplies and advice on all the latest DIY trends. Find great deals on eBay for Worm Gear in Collectable Train Sets and Railway Models. Find great deals on eBay for Worm Gear in Eclectic Power Transmissions.

Worm gears are used when large gear reductions are needed. It is common for worm gears to have reductions of 20: and even up to 300:or greater. Worm gear screw jacks by Thomson - Available in two sets named MULI and JUMBO. High-quality standards and specifications according to your . The arrangement of gears seen above is called a worm and worm wheel.

The worm, which in this example is brown in colour, only has one tooth but it is like a . Sep 20- A worm gear (or worm drive) is a specific gear composition in which a screw (worm) meshes with a gear/wheel similar to a spur gear.