A planetary gearbox is a type of gear system that consists of spur gearbox. In a planetary gear (also known as a cyclic gear), a central gear called a sun gear acts as the input and drive of the assembly. Three or more "drive" gears (called planets) rotate around the sun gear. (Guide to planetary gearboxes)
Although planetary gearboxes have different models and series, there are some common components in all of them: compartment Solar pinion Mechanical connection to the motor shaft planetary carrier
