This Futaba FUSG29 gear set is an internal replacement intended for Futaba S29 and S129 servos, supplied without outer packing. It is offered as a service part to refresh worn gear trains and restore smooth operation.
Prior to fitting, confirm your servo model and visually compare tooth form and shaft diameter. Ensuring correct physical compatibility prevents misfit and potential damage.
Reassembly advice: keep a record of gear order, confirm free rotation of the output shaft after mesh adjustment, and test under light load before full service use. Standard hobby screwdrivers and a tidy bench are normally all that is required.
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