It's just another way of doing the "bearing". Normally, that's a bit of machining with extremely tight tolerances and a single point of very high pressure conta

It's just another way of doing the "bearing". Normally, that's a bit of machining with extremely tight tolerances and a single point of very high pressure contact, either ball-on-ball or cone-on-cone. I had a table about thirty years or so back now - a Revolver - that took a full three days for the platter/spindle to bottom out in the bearing when it was installed. (And while it was "hi-fi", it wasn't nearly high-end. An audiophile would have called it "entry level".)