Servo motors mostly use in toy cars, airplanes, robots, industrial machinery, manufacturing, pharmaceutics. The servo circuitry is built-in inside the motor itself and has a positional shaft which usually fitted with a gear. The motor is controlled with an electrical
Introduction to Robotic Gears, Gears Ratios and RPM
Gears are like wheels with teeth mesh together and make things turn. Gear are used to transfer motion or power from one moving part to another. A gear is rotating machine part have cut teeth, or cogs, along with another