A planetary gearbox, also known as a planetary gearbox, is a mechanism in which multiple planetary gears rotate around a sun wheel, reducing the transmission speed ratio and proportionally increasing the torque of the motor.Features: Compared to similar ordinary gear physics boxes, it has stable transmission, large bearing capacity, small space, and large transmission ratio, especially its lifespan. If the gear is made of steel, its lifespan can reach 1000Y, its size is compact, and its appearance is beautiful