Gear of an engine that usually use in motor engine , all type of engine can use this gear

About this design

A gear is a rotating machine element with teeth that mesh with another toothed part to transmit torque and motion. Gears are used to change speed, direction, and force in mechanical systems. They can increase torque while reducing speed or increase speed while reducing torque, depending on their size ratio. Common types include spur gears, helical gears, bevel gears, and worm gears, each suited for specific applications. Gears are widely used in machines, vehicles, clocks, and industrial equipme