Subject: Re: Ball Screws for Bridgeport type mill

From: Dave Ruigh <[email-masked]>
Date: Mon, 22 Jul 1996 19:15:22 GMT

Tim Briggs wrote:
> 
> I am looking for some ball screw retrofits for a Bridgeport type milling
> machine.  I saw some in a catalog once but can't remember where.  Any
> information would be appreciated.
> 
> Thanks
> 
> [email-masked]
> [email-masked]

Here is one source I've found. I got a quote of $950 for both axes,
including the mounting yoke. The screws are ground thread, .0005"/ft
lead accuracy.  The mfgr is Taiwanese, the US contact is:

Hiwin Technologies Corp.
4344 Regency Dr.
Glenview Industrial Center
Glenview, Ill 60026
708 827 2270
fax 708 827 2291

(Note: I got the quote from a local rebuilder here in San Jose,
HSS, who is a rep for Hiwin, I don't know if the direct price 
is the same.)

There are also Japanese screws available, THK, NSK, though
ground screws are probably more like $1500-$2000 from these
companies.

Dave

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From: [email-masked] (Jonathan M. Elson)
Date: 23 Jul 1996 18:42:06 GMT

Tim Briggs ([email-masked]) wrote:
: I am looking for some ball screw retrofits for a Bridgeport type milling 
: machine.  I saw some in a catalog once but can't remember where.  Any 
: information would be appreciated.

Call the local bearing suppliers in your area.  Look under bearings in the
Yellow Pages.

Nook and Saginaw Steering gear, among others, make complete retrofit kits
for the bridgeport.

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From: [email-masked] (David J. Campbell Jr.)
Date: Fri, 26 Jul 1996 16:48:26 -0500

>information would be appreciated.

have you looked in the "Thomas Registers" under screws, ball, and
ballscrews yet?...yoou'll probably only find about 500 to q thousand
manufacturer/suppliers of em there, most w/toll-free 8700 numbers...

dave

-- 
FULL QUOTEBACKS of _both_ our texts, and Emailed replies posts will get best response! -=- My fax number is 352 376-9929 (& faxes incoming midnight to 7 AM EST work best!) I'm in Gainesville, north central Florida. Where are _you_ located, please?                                         Thanks,  Dave

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From: JAMES SCHMIDT <[email-masked]>
Date: 27 Jul 1996 02:22:18 GMT

There is an outfit in Illinois called Cardinal Engineering in Cameron IL 
that has CNC kits for b-port type mills, and will sell ball screws. 
Contact them at RT1, PO Box 163, 61423. They are home shop and hobbyist 
oriented. Another source is ah-ha! Design Group at (612) 641-1797. Don't 
know either's quality, but worth checking out Good luck. JS