planetary gear outputs


New member
Dec 29, 2016
let me know if this is posted in the wrong place

what is the math to find out the output of more complex planetary gears? say something like 2:1-2:1-2:5 with the first 2 being the input and the 5 the "big gear"
if the big gear is 100% output its as simple to work out as a normal gear train (1:1.6) but if the big gear is locked than what would the math be? using brute force i work the output to be 1:26.666~ but what is the formula to get that?