Re: [CAD_CAM_EDM_DRO] oversized bearing balls for ball nuts

I asked the 'chief engineer' at Nook about the relationship between ball
size and backlash and he says it's "approximately 1 to 1 with this screw".
I have enough room for two nuts on my x axis but there just isn't room on
the y axis. The one nut I have is less that 1 thou backlash, I may just use
that on the y and get another nut and put two on the x. (If I can't get the
oversized balls)
Joel

----- Original Message -----
From: <ptengin@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Friday, March 16, 2001 1:36 PM
Subject: Re: [CAD_CAM_EDM_DRO] oversized bearing balls for ball nuts


> Joel,
>
> You have lash in a axial direction. The balls will be growing in a
radial
> direction. It is not a one to one relationship. You may have to play with
the
> ball sizes, I doubt the .146 or .147 will work. The other option is to set
up
> two nuts in a preloaded arangement....
>
> Peter
> THRD, Inc.