Re: [CAD_CAM_EDM_DRO] ball screw repair questions...

Hi Doug:
4mm balls are 0.00123" oversize compared to 5/32 balls.
Would that do it?
Cheers
Marcus
-----Original Message-----
From: dougrasmussen@... <dougrasmussen@...>
To: CAD_CAM_EDM_DRO@yahoogroups.com <CAD_CAM_EDM_DRO@yahoogroups.com>
Date: Monday, October 08, 2001 7:22 PM
Subject: [CAD_CAM_EDM_DRO] ball screw repair questions...

>Group,
>
>I have a non-precison ball screw/nut assembly in need of repair.
>It's in a press and is subject to heavy loading. Over the years it's
>had quite a bit of use.
>
>I removed the balls and miked them at around .151" +/-, some bigger,
>some smaller (wear, I assume). Probably they were originally .156"
>(5/32"). I installed new 5/32" balls purchased from my local bearing
>supply house. The screw is still looser in the nut than I'd like.
>
>Next step is to go with slightly larger balls to take up some of the
>slop in the assembly. That's where my questions start. Who's a
>source of slightly oversize balls? And, what's the best procedure to
>determine how much oversize without buying a bunch of different sizes
>and trial and error?
>
>thanks,
>
>Doug
>
>
>
>
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