Worm gear. Historical artwork of a worm gear or endless screw devised by Leonardo da Vinci (1452- 1519) about 1490. The worm gear consists of a toothed wheel (at centre) which is worked by a short,revolving cylinder (at upper centre) known as the worm. There is a weight attached to the toothed wheel. This type of gear transmits power between perpendicular shafts. Worm gears are used in modern rear-wheel drive car transmissions | |
Licence : | Droits gérés |
Crédit: | Science Photo Library |
Taille de l’image : | 3912 px × 4606 px |
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