[R-390] Non fitting gears
Joe Foley
redmenaced at yahoo.com
Thu Jul 21 11:36:56 EDT 2005
I can get custom springs made to order, just having
trouble getting that MC CHANGE detent made.
Joe
--- Tim Shoppa <shoppa_r390a at trailing-edge.com> wrote:
> > Does anyone know the specifications for the small
> springs that hold
> > the split gears tight?
>
> My guess is:
>
> Slightly less than 1/8" outside diameter. Maybe
> 0.100".
> Overall length 3/8".
> Wire diameter seems to be 0.020".
>
> In my brief looking around, 0.1" diameter springs
> made out of 0.020" wire
> seem to be fairly common. But not in a length as
> short as 3/8". I'd
> hazard a guess that a very workable substitute could
> be made by buying
> a longer spring, cutting it, and bending a new hook
> on one end.
>
> Probably you want to replace them in pairs.
>
> If you want to wind a spring from scratch, I had
> this web page pointed
> out to me a few days ago. It makes it look easy!
>
> http://home.earthlink.net/~bazillion/springs.html
>
> If you're going to make one, I'd make two just to do
> both side in a
> matching pair.
>
> I have bought stock springs etc. from
> http://www.mscdirect.com/ for
> the springs that tension the slug racks down.
> (Which are 3/16" OD,
> 1.5" overall length, 0.020" wire.)
>
> Tim.
>
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