This is our planetary gear sample. The planetary gear mechanism is comprised of a sun gear, planetary gears and an internal tooth gear.  The sun gear is installed on the central axis (in a single stage type, this is the motor shaft) surrounded by planetary gears enclosed in an internal tooth gear centered on the central axis.  The revolution of the planetary gears is translated into rotation of the output shaft via carriers.

We could make the parts according to your drawings or samples,looking forward to cooperate with you.For more information please contact us,thank you!