Re: [CAD_CAM_EDM_DRO] Bridgeport ballscrew retrofit kits and prices

Good Morning:
I do not usually bother to post very often on this site but I have to make an exception this time!
I find it amazing that you went through the trouble to find and post all this information I personnaly want to take my hat off to you and say thank you if it wasn't for people like yourself these groups would be useless
Again I commend you on a job well done !
If I can ever be of of service to you let me know. I have a macnine tool repair business and I fix alot of BRIDGEPORT and HARDINGES I also install alot of D.R.O.'s
Thank's Again
Paul O


cnc_4_me <cnc4me@...> wrote:


Ballscrew suppliers for Bridgeport retrofit kits.


1. Ball Screws & Actuator Co, 800-882-8857
Formerly ballscrews.com
New name Danaher motion
NO LONGER SELLS Bridgeport ballscrew kits


2. Nook, 1800-321-7800
http://www.nookindustries.com
NO LONGER SELLS Bridgeport ballscrew kits

3. http://www.microkinetics.com/convkit.htm
Go to the bottom of their web page.
YES, they have rolled ballscrew kits. Kit includes the yoke.
Rolled ballscrew kit, claiming error of .001" per foot. $1,375.00

4. http://www.mcmaster.com/
(404) 346-7000
YES, they have rolled ballscrew kits. Kit includes the yoke.
Rolled ballscrew kit, error .003" per foot. $750.00
Part number. 29995A74


5. Hiwin 847-827-2270
http://www.hiwin.com/contact/index.html
YES, they have both rolled and ground ballscrews. Kit
inludes the yoke.
Rolled ballscrew kit, error .002" per foot. $516.00
Ground ballscrew kit, error .0005" per foot $792.00
There web site has drawings of ballscrews.
Any custom work on screw will have 5 month lead time.


6. Rockford Ballscrews, 1-800-475-9532
http://www.rockfordballscrew.com/home.htm
YES, they have rolled ballscrew kits. Kit includes the yoke.
Rolled ballscrew kit, error .002" to .003" per foot. $650.00
Bearing kit. 4pcs 7204 bearing, 2 inner and 2 outer spacers
BRP-7204 $104.74
Drawings for ballscrews is on their website, click on picture of
kit for drawing.
Can do specials, aprox 2 week wait.
Rockford ballscrew does not sell ground screws.



The following TOP SECRET information was obtained
with a rubber hose and blackmail. It is not available on
the Rockford ballscrew web site.

Rockford ballscrew also has a Z axis KNEE retrofit kit.

The kit has a roller ballscrew, nut, and bearings.
R-47-8258 $199.50
The drawing for this kit must be faxed to you.

To use this kit you must machine a pocket for the ballscrew
return tube to clear.
The specifics are on the drawing they can fax you.

There is also a manual on there website.
http://www.rockfordballscrew.com/manual.htm
Good info on how to remove old acme screws and install
new ballscrews.
Interesting info on lube to.



Misc info. on Rockford ballscrews


The factory knows all about these kits.
http://www.rockfordballscrew.com/home.htm
The distributor knows nothing.
The factory told me all this info in 5 min on phone.
The distributor took 4 days to get this info, with me telling
him every day what he was missing.
I called the distributor to find out if the factory and
distributor would price these kits differently.
Same price�And buying from factory is no problem�

Last tidbit of information, is when talking to the factory
about custom ends on ballscrews,
They felt the cost would not be to much more�But of course
needed to see a drawing
for a quote�


Wally






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