Tags: Feigao_All_Metal_Planetary_Gearbox_for_380_Series_4.4_1_Ratio 

Specifications:

Pinion motor shaft diameter:Φ3.17mm
Output shaft (prop shaft): Φ4 mm
Gear ratio:4.4:1

Includes/Requires:

Include:
4x mounting screws
1 x motor pinion
2 x two pinon mounting screws.