Gears are mechanical components used to transfer motion and torque between machine parts through meshing teeth. They come in various forms, including spur gears, bevel gears, and worm gears, each suited for different applications in robotics, motors, and industrial machinery. Gears are essential for controlling speed, direction, and force in mechanical systems.

With their ability to transmit precise power and adjust rotational speed, gears play a critical role in the efficiency and functionality of machines. For engineers and mechanics, selecting the right gear ensures smooth and reliable operation in their designs.