Oh nice, I really like those flip down workbench casters. Saves me the trouble of moving the pedal mount, for one.
As for the table, I'm sure I can rig up *something* to get them to bolt on - I was more interested in the general specs to look for. Honestly though, since I doubt that a table with machine is likely to weigh more than 250 lbs, heavy duty industrial casters would be neat but probably aren't critical. A loaded workbench surely weighs that much or more. Any caster that isn't obviously dinky should surely be rated for at least 60 pounds, right?
I do intend for the machines to live on a hard surface, but plans can always change, so I agree that it would be handy to have casters that can cope with carpet.