Removing wheel bearings without a press!?

if you have big meat freezer (the box type), once you get the old bearing off you could try putting the axle in the freezer for a few days, once its good and cold, put the bearing in the oven for a little while then take it out and immediately put the hot bearing on the cold axle and see if the expansion/contraction allow it to slip on, might take some pounding but it should make it a little easier to get on. anyone tried this???
-tim