For use as a reduction gear when the gearbox output shaft to the pinion attached original hole diameter 3.2 mm. Suitable eg. For models of trucks and other vehicles, which are required smooth ride at low speeds. The gearbox is made of metal, except the inner ring gear, which is to ensure low noise plastic glass fiber filled. Satellites and pinion are steel, carburised. The 4mm output shaft is mounted on dia. 3,2 mm and is mounted on ball bearings. Package includes gearbox, pinion flange screws to fasten the electric motor, screws for mounting the gearbox to the model. Package Contents: 1 pc
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