Types and applications of Worm Gear.

  A worm gear (or helical ) is a specific gear configuration in which gears / wheels similar to straight gears and worms are coupled. This configuration allows the user to determine the rotation speed and deliver a higher torque. This mechanism can be seen both at home and in heavy equipment. The simplest form is obvious in the tuning mechanism of an acoustic guitar. There are three types of worm gears. 1.Non-throated :-This includes straight-line worms that are machined around the circumference. A single point of movement provides contact with the teeth. This particular type of worm is subject to high wear of the unit. 2.Single throat : A spiral concave tooth is wrapped around the worm for contact with the line. This means a higher unit load due to excessive wear. 3.Double throat: This type, commonly called hourglass cone, has a concave tooth in the worm and in the gear. Increasing the contact area in this way can result in less wear on the unit due to low wear. Applicatio...