Subject: 2:1 Internal & Spur Gear

[Greg Hermann]

>> 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