For all other gum namely, the axial width of the groove is in the hole of the housing plate, too far. And therefore all the others have a more or less large axial play, which causes the fan can develop a self-oscillation and thus the rubber mounting thus is rather pointless.
If other reviewers write that they have demolished the rubber when mounting, then I believe that is not the product, but rather to the clumsiness of the installer / reviewers.
When reading various reviews I had from time to time under the impression that many more reviews about the qualities (incompetence, gross motor skills) statements of the review author, as never happened before on the actual quality of the evaluated product, for me is that I rubber a Nanoxia have torn down, and I have a stiff hand and partially amputated fingers on both hands !!!
Subsequent note:
Unlike other I always do first all-over place well, and only act as a last step, ie mount. I have the rubber, s lubricated with a trace glycerol Handchreme before assembly, then they go very easy to motieren!