"It is normal for the bearing to touch the pressure plate all the time"

Sorry Dennis but it is NOT normal for any Clutch Release Bearing to spin all
the time, same for the pilot bearing, i have spoken with a clutch rebuilder
and he fully confim that statement, at least on most modern car. Now, you
are right about the slave having a spring that push this one down, but here
is our problem, it should keep the rod up and not down. The bearing is the
same on Bus's and those have a return spring to keep the bearing away from
the PP. Now, it may be my slaves (company... that i don't remember the
name)that are week or not well design, that is why i ask here.
Dennis, i know what you say is true, but something is wrong there, i don't
like that as a mechanic... i will find the reason. We did some test today
with an engine and tranny on the groung (measuring distance) and i'm sure
that the bearing is pushing on the PP, and more than i thought. I can tell
you that i have seen slave staying up, so i need to know why.

Cheers, Ben