Rotary motors are devices that convert electrical energy into mechanical energy through rotational motion. They are commonly used in various applications, such as electric vehicles, industrial machinery, and household appliances. The main types of rotary motors include DC motors, AC motors, and stepper motors, each serving different purposes based on their design and operational principles. These motors operate by creating a magnetic field that interacts with coils of wire, causing the rotor to spin. The speed and torque of a rotary motor can be controlled by adjusting the electrical input, making them versatile for tasks requiring precise movement.