Subject: 2:1 Internal & Spur Gear

[Ken Mayer]

> 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
:-)