Hiwin bearings + rails set unused

[iak65]

Hi again, here is what I found out.

To determine the preload of the HIWIN HGH20CA slide, just put the slide on the rail and hold the rail vertically. If the slide moves under its own weight the preload is Z0.
If not it is ZA. ZB is available for bigger slides only.
If you still have the packaging you can also find the preload value there (like on the picture) :
The C at the end is the precision value according to the HIWIN catalogue and determines the price of the slide.
ZA is good preload for a precise and stiff XY table on a CNC.
Are the items sold yet?

Cheers.