Re: [CAD_CAM_EDM_DRO] Re: re:Re: Lead screws for ever...(plastic)

Personally, I'd go with a ground steel washer.

Smoke
-----Original Message-----
From: ballendo@... <ballendo@...>
To: CAD_CAM_EDM_DRO@egroups.com <CAD_CAM_EDM_DRO@egroups.com>
Date: Friday, October 27, 2000 11:32 PM
Subject: [CAD_CAM_EDM_DRO] Re: re:Re: Lead screws for ever...(plastic)


Chris wrote:

>I imagine I'll do what Scott did and go with some type of plastic
>packing washer in there, and just wind it up tight. As long as the
>rating of the bearings isn't exceeded, and the load forces don't
>compress the plastic any more during use<snip>

If you do, choose something besides teflon! In a constant compression
use, it WILL "flow". Delrin would be a good choice. Or nothing, if
the bearings are correctly spec'd or the housing sized. In your
drawing, this could be done with shims under the retaining plates.

Hope this helps.

Ballendo




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