Re: Bridgeport ballscrew retrofit kits and prices

So what do you think is the best bet?

Scott




--- In CAD_CAM_EDM_DRO@yahoogroups.com, "cnc_4_me" <cnc4me@g...>
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