What Doug said (along with our friend at Helius) ...
Ralph, theory is fine, but the fact is that even our mother planet has a resonant frequency. I fear that it's a bit utopian to expect an armwand to accomplish what our planet cannot do (to dissipate all vibrations into heat).
Bearing precision (and perhaps hardness) are desirable attributes, and congratulations to Tri Mai for sourcing such good bearings, but to categorically state that one's bearings are superior for audio because one needs a Homeland Security clearance is a bit specious and obfuscates the big picture - that (as with all things audio), we're dealing with complex interactions.
I suspect that the relevant attribute of the Tri-Planar bearing has more to do with its ABEC specification (likely 9) - the fact that they are round and to a tighter tolerance, resulting in being less prone to rattling when excited (because the cartridge WILL try to excite them).
It's possible that its material (and possibly hardness) also contributes to energy transfer, but without identical bearing specifications of various materials, one couldn't prove this.
Cheers,
Thom @ Galibier