Jimmyhaudio,
Just going by the photos, it appears that two electric motors are rotating a flywheel using belts (two per side = four belts?). A big disc (idler wheel) is afixed to the flywheel's shaft and rotates with it. A rubber O-ring encircles the idler wheel and moves with it. The rubber O-ring is in tangential contact with the rim of the record platter and causes the platter to rotate via the friction of the contact pressure. I hope to be able to see (hear!) one of these someday.
Just going by the photos, it appears that two electric motors are rotating a flywheel using belts (two per side = four belts?). A big disc (idler wheel) is afixed to the flywheel's shaft and rotates with it. A rubber O-ring encircles the idler wheel and moves with it. The rubber O-ring is in tangential contact with the rim of the record platter and causes the platter to rotate via the friction of the contact pressure. I hope to be able to see (hear!) one of these someday.