For brushless planetary gear motor acceleration or starting, they can also generate high torque. Compared to other DC motors, carbon brush types are generally smaller and more efficient because they do not have an excitation coil.
There planetary gearbox are two important characteristics of servo brushless motors that need to be kept in mind by engineers and designers. First, the rotor is the inside of the motor, and the heat dissipation path of the rotor is not very effective.