Re: Alum. Extrusion Manufacturers

Hello,

Keep in mind that many of the newer designs of round rail linear
bearings TRANSFER the load to the bore/housing they are in... This
saves money on the bearing, which is then spent on the housing.
Overall, it's still cheaper than the "old" way, since in htat scheme
the money was "spent" twice, making the bearing capable of handling
its rated load whether in a housing or not...

Hope this helps.

Ballendo

P.S. Also keep in mind that the bore tolerance for most linear
bearings is pretty tight. That is partly why the housings cost so
much. If you DO find/make an extrusion, you will likely need to
ream/bore it to size; as the tolerance obtained from "stock"
extrusion will not be tight enough.

--- In CAD_CAM_EDM_DRO@y..., Jon Anderson <janders@n...> wrote:
> Chris,
>
> There is a product that just might help, called a "Tolerance Ring".
> Picture a miniature version of aluminum siding, but with a very
short
> pitch and height. Make it out of springy stainless and roll into a
> circle.
> Some of the applications include fixing bearings in low tolerance
bores.
> http://www.usatolerancerings.com/ is the site, there just might be
one
> that will fill a gap for you allowing you to do what you want.
> I think you have a clever idea, Tolerance Rings might help make it
> happen.
>
> Jon