Re: Ballscrew question

I have made preloaded nuts before and it's not overly difficult, the
problem is, by the time you add up 2 standard nuts, wipers, and some
special spring your 3/4 of the way to a factory preload. For the
extra $20 it's easier to buy the nut ready made.

Thanks
Aaron Moss
www.IndustrialHobbies.com


--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Douglas Pollard"
<dougpol1@o...> wrote:

> This is probably nuts but I would like to try it. Suppose you

butted one end

> of a ball nut against a shoulder and squeezed it lengthwise by

clamping in

> some fashion could you change the lead enough to take out a couple

thou. of

> backlash? Don't everyone email me that I am Dumb I already know

that.

> Doug
> y
> ----- Original Message -----
> From: "yodawill2000" <chue2k@c...>
> To: <CAD_CAM_EDM_DRO@yahoogroups.com>
> Sent: Wednesday, February 25, 2004 3:12 PM
> Subject: [CAD_CAM_EDM_DRO] Re: Ballscrew question
>
>
> > C.S ..
> > Do they have a website ??
> > Or a # ??
> > Thanks for the info ...
> > if they are considerably less I'll go with the double nut setup .
> >
> > --- In CAD_CAM_EDM_DRO@yahoogroups.com, "C.S. Mo" <cs@v...> wrote:
> > > Rockford Ballscrew offers 5/8" rolled ballscrews for

significantly

> > less.
> > > And, they will machine the ends for $60/end or anneal the ends

for

> > $10/end.
> > >
> > > I initially went with a single nut with oversized ball bearings

on

> > my
> > > quill assembly but found that I got 0.0015-0.002" backlash.

Going

> > to a
> > > dual nut pre-loaded assembly reduced that to about 0.0002-5".
> > >
> > > --C.S.
> > >
> > > >Just to clarify Ray ..
> > > >Thats with the single nut assy ??
> > > >The Thompson rig is exactly what I was looking at ..
> > > >Decent pricing over at homeshopcnc ..
> > > >I'll just need to figure out how to turn the ends down ..
> > > >My lathe has only a 1/2" through hole ... Dooh !! :)
> > > >Thanks
> > > >>
> > > >> I get about 0.002 lash with the 5/8 thompson rolled screws.
> > > >>
> > > >> Ray
> >
> >
> >
> >
> > Addresses:
> > FAQ: http://www.ktmarketing.com/faq.html
> > FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
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