Thread: How to calculate planetary gear ratios?
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Unread 27-02-2005, 01:49
sanddrag sanddrag is offline
On to my 16th year in FRC
FRC #0696 (Circuit Breakers)
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How to calculate planetary gear ratios?
At one time or another I knew how to do this but it has been a while.

What is the formula for a planeatary gear ratio involving the tooth counts on sun, planet, and ring gears assuming the ring gear is held stationary?

Thanks.

EDIT: I looked a little harder and found it to be (sun+ring)/(sun).
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Last edited by sanddrag : 27-02-2005 at 03:26.