Define gear and types.

Question

Accepted Answer

Gears are mechanical components that transmit power and motion between rotating shafts. There are various types of gears.

Gears are used to transmit power and motion between rotating shafts.
They are mechanical components that have teeth that mesh with other gears to transmit torque.
The most common types of gears are spur, helical, bevel, worm, and planetary gears.
Spur gears have straight teeth and are used for low-speed applications.
Helical gears have angled teeth and are used for high-speed applications.
Bevel gears have cone-shaped teeth and are used to transmit power between shafts that are at an angle to each other.
Worm gears have a screw-like thread and are used for high torque applications.
Planetary gears have a central sun gear that meshes with multiple planet gears and a ring gear, and are used in automatic transmissions and other applications that require high gear ratios.

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