I am currently doing a restoration of an old mower. My problem is this: I need one good wheel but presently have two damaged ones. One wheel has good rubber but a broken hub, the other wheel has a good hub but perished and cracked rubber. So I wonder if I could combine the two best parts to make one good wheel?

Can anyone tell me, is it possible to separate the rubber from the hub? If so, how can this be done without totally wrecking the wheels?

Probably a dumb question but I thought it couldn't hurt to ask.