I think a washer or two will make it closer to 'perfect'.
JPG you are correct. Yesterday Bruce and I were looking at how the original caster sits in the sleeve and there is just under a 1/8" gap.
Mark V completely upgraded to Mark 7
Mark V 520
All SPT's & 2 Power Stations
Model 10ER S/N R64000 first one I restored on bench w/ metal ends & retractable casters. Has Speed Changer, Model 4E Jointer, Jig Saw with lamp, a complete set of original accessories & much more.
Model 10E S/N 1077 oldest one I have restored. On bench w/ metal ends & retractable casters.