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Back Driving a Planetary Gearbox?

jcorsico

Aluminum
Joined
Feb 17, 2009
Location
Maryland
I have an application where I need to speed up a shaft. I was thinking of using an inline planetary gearbox (like you would see on a servo drive), but running it backwards - so that the output shaft spins faster than the input shaft.

Does this work? I know some gears can be back driven (like a spur gear) and some cannot (like a harmonic drive? not sure). Any pitfalls?

Thank you!
Jon
 
Call the manufacturer and get a recommendation. When a gear set runs "backwards" from its designed config, contact ratios are not optimum. The gearset is probably not as strong as the reduction direction. If you are not pushing the gears to the limit it will probably work.
 








 
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