2:1 Internal & Spur Gear

[Gary Derian]

There are companies with stock gears that may have what you want.

Gary Derian <gderian at cybergate.net>



>This is not exactly EFI related - but my local sources have
>been unable to help me.
>
>I am trying to build an experimental transmission.  It uses
>an internal gear (teeth on the inside) and a spur gear (teeth
>on the outside) that rotates inside the first gear.  My only
>requirement is that the internal gear needs to have exactly
>twice the teeth of the spur gear (and mesh, of course).
>
>I went some automatic transmission shops, but all the sets
>of internal and planetary gears won't work because the planets
>are too small.  I was hoping internal and planets from different
>sets might work,  but haven't found a match.  I figured that
>buying some used automatic transmission gears would be
>the cheapest way to get some quality gears.
>
>Any ideas?
>
>TIA
>
>Dan L