Re: [CAD_CAM_EDM_DRO] Ballscrew end mounts was Re: Doesnt ANYONE have this drawn up???

Les, I'd like to get that Autocad drawing if possible. Could you email it
to me?
At very least I'd like to see how its setup. Dont think I could make a
sleeve that tight. I dont even have a Caliper that goes down 5 digits. :)
Still have more of them SEM motors? I should take a picture of the USD
Encoder mounted in place of the Tach. to give to you.

Vince

----- Original Message -----
From: "Leslie M. Watts" <leswatts@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Thursday, August 14, 2003 8:37 AM
Subject: RE: [CAD_CAM_EDM_DRO] Ballscrew end mounts was Re: Doesnt ANYONE
have this drawn up???


> I have a bearing endmount unit similar to the Rockford or
> Thomson drawn up in Autocad if anyone needs it. It uses two
> DB angular contact bearings and standard Chicago rawhide
> seals. It can be considered simple end fixity with the bearings
> adjacent to each other, or a pair of inner and outer sleeve
> spacers can be fitted for fixed. The addition of a bearing
> bellville spring can allow a special case of fixed support
> where bending loads are resisted but the bearings float axially
> for thermal stability. Deep groove bearings can be used in this
> case, and it would be used on only one end, with a non-floating
> type on the other.
>
> I don't think you will need it for a BP conversion though, Vince.
>
> Another note: Machining to +/- 0.00015" is required for these,
> particularly sleeve lengths. Building them gives an excellent
> lesson in why the commercial units cost about $300 each!
> I have made and used a bunch of them though.
>
> Les
>
> Leslie M.Watts
> L M Watts Furniture
> Tiger Georgia USA
> http://home.alltel.net/leswatts/wf.html
> Engineering page:
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> http://home.alltel.net/leswatts/signwp.html
>
>
>
>
> -----Original Message-----
> From: ballendo [mailto:ballendo@...]
> Sent: Thursday, August 14, 2003 9:10 AM
> To: CAD_CAM_EDM_DRO@yahoogroups.com
> Subject: [CAD_CAM_EDM_DRO] Ballscrew end mounts was Re: Doesnt ANYONE
> have this drawn up???
>
>
> Vince,
>
> It's not drawn up by us, because it's so easily found online...
> Caveat; there are a whole slew of Bridgeport models and over the
> years things changed. Be sure you are comparing apples with apples.
>
>
>
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