The copyright which unites all of the planetary gears revives the output and transfers it to an output shaft. Fixation of all of the ring, sun, and planetary gears do the job collectively for your sole function. The purpose of fixation is to acquire wanted torque and speed. Examples https://gearbox19740.creacionblog.com/33617428/how-much-you-need-to-expect-you-ll-pay-for-a-good-gearbox