56 minutes ago, Edwin_P said:
Haha I actually bought them for cheap in China xD.
I don't know exactly what kind of bearings they have, but I think they have "sleeve bearings"... I'm not a fan expert..
Yea if it's sleeve bearing they're supposed to be mounted vertically, but strangely enough i've had this exact issue with EK's fluid bearings so not having sleeve bearings doesn't rule that out.
I've mounted my exhaust fans wiith magnets to the top of my server rack so as long as the magnets aren't really strong or on top of the center part you're fine.