[simpits-tech] Gears...

[Freeman P. Pascal IV]

I'm looking at gears and reading about them in Wikipedia. I know that 
you have to take care when selecting gears so that their teeth mesh 
correctly between gears of different diameters.  For sim use I suspect 
spur gears and rack/pinons would be the most useful.

Are there any rules about selecting different size gear diameters, teeth 
pitches, etc. to make selecting gears and easy process?

-Freeman