I have a set I'm installing. I'll measure them for you and sedn some pics tomorrow.
There is a slight taper on the bearing on the table side. I had to countersink the hole so the bearing would tighten flush to the side of the table. Also, there are two locking nubs on the bearing surface on the table side of the bearing. These nubs lock into the table to prevent them from spinning while tightening. I suspect those nubs could be sanded down and still able to tighten if you don't have the locking holes in your table.