Vibrato stability? do you mean natural resonance frequency? Functioning resource? do you mean efficiency?. The best that I can interpret this is you mean to design a bearing where instead of clearance, there is residual force on the balls that will prevent any vibration. If this is your idea, I believe the bearing would be harder to turn at low speeds and I also believe that with the huge variation in bearing quality that's availble (for $$$) an ABEC #8 bearing won't vibrate much anyway.

I think this inventor put his/her idea through one of those cheap translator programs that make garbage out of the translation. Maybe there's more here than I understand. Arman?

Rollers are executed in the form of the hollow tube, inside of which needle cores are established hard compressed between each other.

arman-author invention