Re:HIWIN ballscrews
Posted by
Les Watts
on 2000-04-14 08:19:57 UTC
Jon Anderson wrote:
I used their stuff and found it to be of excellent quality. The preloaded class 7
rolled units I used are very smooth with consistent preload torque drag.
I paid $281 for 25mm x 5mm x 1.25 meter in class 7 preloaded with flanged nut.
Class 3 or 5 ground was about $500+ as I recall but still a good deal. They use
double nut preload.
Mine are oversize ball 5% preloaded and might wear a little more due to
4 point contact and ball scuffing. But the lifetime calculations I did for
my loads (their data) was off the chart.
They do not machine ends but I do that myself easily. Just grind off the
case- don't need to anneal. Core is about RC40 no problem.
Les
--
Leslie M.Watts
President
L M Watts Furniture
(630) 980-8249
http://www.netcom.com/~leswatts/leswp.html
> Joe,Guys the HIWIN site is at http://www.hiwin.com.tw/
>
> For $1300, you are most likely looking at precision ground ball screws.
> (or a heck of a markup...) When I was looking for ball screw kits for my
> BP, I seem to recall HiWin offered ground ball screws for around $900.
> Personally I'd rather spend an extra couple hundred for the added
> accuracy, but that's a business-biased judgement.
> A quick search on Alta Vista didn't turn up a web site, suspect they
> don't have one. I've got literature buried somewhere, can dig it out and
> post a phone number.
>
> Jon
>
I used their stuff and found it to be of excellent quality. The preloaded class 7
rolled units I used are very smooth with consistent preload torque drag.
I paid $281 for 25mm x 5mm x 1.25 meter in class 7 preloaded with flanged nut.
Class 3 or 5 ground was about $500+ as I recall but still a good deal. They use
double nut preload.
Mine are oversize ball 5% preloaded and might wear a little more due to
4 point contact and ball scuffing. But the lifetime calculations I did for
my loads (their data) was off the chart.
They do not machine ends but I do that myself easily. Just grind off the
case- don't need to anneal. Core is about RC40 no problem.
Les
--
Leslie M.Watts
President
L M Watts Furniture
(630) 980-8249
http://www.netcom.com/~leswatts/leswp.html