Re: [CAD_CAM_EDM_DRO] Ballscrew Slop Question

In regard to the slop, check to make sure the bearings are tightly mounted.
We have a bridgeport mill where there is an audible clunk when you change
the direction on the Y axis, under CNC control. I think the bearings are
loose.


Tom Eldredge, Trustee

----- Original Message -----
From: <jh1221@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Tuesday, February 13, 2001 10:29 AM
Subject: [CAD_CAM_EDM_DRO] Ballscrew Slop Question


> Hello All, I just installed ballscrews on my Bridgeport mill, in
> preparation for a CNC conversion. They were purchased from Hi-Win
> Industries. After installation, I noticed that there is about .002-
> .003 slop in either direction on the X axis. (the Y seems OK) I have
> been told that my bearings that are in the left side end cap might be
> at fault. Could this be true? Since the original Bridgeport didn't
> need to have zero backlash, are they even thrust bearings at all? If
> I need them, does anyone know of a cheap source?, the ones I checked
> for the bridgeport(20mm id x 47mm od )are $270.00 for two!!! Or does
> anyone know of a different solution? Thanks in advance; John
>
>
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