Re: linear bearing based on ground flat stock

Another issue is that the bearing housings are usually much harder
than the ground stock, which is often supplied annealed.

Means you either want to harden and regrind, or accept that re-
adjustment can be required often. Better would be to use spring
loading of appropriate bearing pairs to effect pre-loading and
compensate wear.

Hope this helps,

Ballendo

--- In CAD_CAM_EDM_DRO@yahoogroups.com, Les Newell <lesnewell@...>
wrote:

>
> I looked into this a while back.As Ballendo mentioned the only real
> problem is dirt. If you enclose the bearings and fit spring loaded

felt

> wipers it should work quite well. You must make sure that the

bearings

> are accurately parallel to the edges of the flatstock. If not you

will

> put a lot of side load on the bearings.
>
> Skate bearings are dirt cheap so even if they do eventually wear out
> they are cheap to replace.
>
> Les
>