Ballscrew Class ?

>
> Class 3 ballscrews ? didn't we just have a discussion about ball
> screws ? I don't remember anyone bringing in something like
> industrial gradeing systems or classes, but more on rolled vs. ground.
>
> I think further reading is in order.
>
> Dave

And to add some info to the ballscrew thread, Roland Friestad
Contributing Editor of Home Shop Machinist, has posted on the
Bridgeport mill group that the Rockford ballscrews yoke will not
properly fit without shimming. He has also used HiWin and
says the yoke fits perfect every time. He believes that the
HiWin are worth the extra money they cost.

Scott