I have an old Dore -Westbury milling machine, fitted with a large compound table from another make of mill. It works quite well, but it really needs new bearings on the spindle. How do I remove the large one near the lower end? It is a thrust bearing, and readily pulls apart, leaving the inner race in situ hard up against a collar of almost the same size. I cannot get any purchase on the bearing inner to remove it. I REALLY don’t want to have to make a new spindle!