I got the bit about the same bearing from Fremer:
"Brinkmann uses the same platter bearing in his belt-driven 'tables. While in those designs the bearing is electrically heated, that's not necessary in the Bardo, he says—the motor's quiescent current produces enough warmth."
I took this to mean that the bearing is heated, but by the motor itself rather than by the PS. Same bearing, different heating source. But I could easily be wrong.
"Brinkmann uses the same platter bearing in his belt-driven 'tables. While in those designs the bearing is electrically heated, that's not necessary in the Bardo, he says—the motor's quiescent current produces enough warmth."
I took this to mean that the bearing is heated, but by the motor itself rather than by the PS. Same bearing, different heating source. But I could easily be wrong.