Subject: 2:1 Internal & Spur Gear

[Clarence L.Snyder]

Greg Hermann wrote:
> 
> >> From: Dan Llewellyn2 <DanLlwln at ix.netcom.com>
> >> Date: Wed, 27 Jan 1999 13:19:35 -0500
> >>
> >> 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?
> >
> >Post your question to rec.crafts.metalworking.  There are a number of
> >sources for such gears.  Also take a look at the suppliers list on the
> >metalworking faq.  You can reach it through www.loganact.com, just follow
> >the links.
> >
> >Ken
> >:-)
> Try Boston Gear.
> 
> Greg
They don't have 'em. I looked.