Gear

Gear is a mechanical device that transmits power by interlocking teeth. It is a fundamental component of many machines and mechanisms. Gears can change the speed, torque, and direction of a power source.

Types of Gears

There are several types of gears, each with its own unique characteristics and uses. These include:

• Spur Gear - The most common type of gear, with straight teeth that are parallel to the gear's axis.
• Helical Gear - These gears have teeth that are cut at an angle, allowing for smoother and quieter operation.
• Bevel Gear - Used in differentials, these gears have teeth that are cut on an angle and allow for changes in direction.
• Worm Gear - A special type of gear that can reduce rotational speed or allow for high torque output.

Applications of Gears

Gears are used in a wide variety of applications, including:

• Automobiles - Gears are used in the transmission to change the speed and torque of the engine.
• Clocks - Gears are used to control the movement of the hands on the clock.
• Industrial Machinery - Gears are used in many types of industrial machinery to transmit power and control speed and torque.

Design and Manufacturing

The design and manufacturing of gears require a high degree of precision. The teeth must be cut to exact specifications to ensure proper meshing and efficient power transmission. The manufacturing process typically involves machining, casting, or forging.

See Also

• Gear Ratio
• Gear Train
• Gearbox

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