Planetary Gear Motors are a type of gear motor that employs a planetary gear system, which consists of one or more planet gears that rotate around a central sun gear. The planet gears are connected to an outer ring gear that usually functions as the output shaft. Planetary Gear Motors are highly efficient, compact in design, and offer high power density, making them ideal for use in a wide range of applications, including robotics, industrial automation, and automotive systems. They are also known for their quiet operation, smooth torque output, and high torque-to-size ratio. Planetary Gear Motors can be further classified based on factors such as input power, output speed, torque capacity, and mounting style, among others.