Whiplash wrote:I'm having s hard time understanding how the planetary gearbox portion still functions correctly. It seems like if you just remove the keys, then yes the axle will spin, but how does it reduce the RPM?
This article describes the function of a planetary transmission: http://science.howstuffworks.com/transp ... /gear7.htm
In geared hub motors, the reduction is: (tooth count of ring gear)/(tooth count of sun gear), since the planet carrier is fixed. If you now fix the ring gear, the reduction ratio is increased by one since the direction of movement is reversed
There was once a complete table with all cases on Wikipedia, some fool deleted
. I should have saved this table once. The german version still has a table, hope you can read ("Sonnenrad fest" means sun gear fixed, "Steg" means planet carrier, "Hohlrad" means ring gear): http://de.wikipedia.org/wiki/Umlaufr%C3 ... #Kinematik
I'm glad to see i'm not the only one who will try this. Guess a converted MAC plays a league above my bafang or the GNG Gen2
For oil cooling your heat bridge plate would best be a short circuit spiral heat exchanger (the inner connections 1 and 2 would be short circuit), do you know someone who can mill such a heat exchanger?