What is another word for worm wheel?
Pronunciation: [wˈɜːm wˈiːl] (IPA) 
A worm wheel is a type of gear that is used to transmit motion between two perpendicular shafts. This mechanism contains two parts, a worm and a wheel or gear. The worm is a cylindrical rotary screw that meshes with the teeth of the wheel which moves in a perpendicular motion to the worm shaft. Various synonymous words for the worm wheel includes worm gear, worm-drive gear, worm screw gear, worm shaft gear, and worm-wheel drive. These terms are utilized interchangeably to refer to this type of power transmission mechanism. The worm wheel is used in various applications, including conveyors, power generators, and automotive mechanics.
