Those bearings are shot. They should be replaced. It will be noticeable if you reuse those bearings. I understand you don't have a welder and no friends with welders and the welding trick to pull the bearing race, although a neat trick, is impossible with out a welder. You could punch the races out with a punch if you could get behind the races. The construction is such that anything put into the tube misses the race. There is a way to get the races out with a screwdriver. Buy a large round shank screwdriver, flat tip. Bend the tip, it's helpful to have a vice for this. Bend the tip enough so that when placed in the tube the tip of the screwdriver reaches the back side of the race. Bang with large hammer. The screwdriver sometimes bends more as you bang the race out. Usually there is enough use from one screwdriver to get two races out. Sometimes you will need several screwdrivers. If you have the ones with hardened tips they will not work as well because they break. Use the old races as driver to install the new bearing races. One race is flush and the other is slightly recessed. The one that is recessed can still be installed and when the race installer gets stuck bang it out by beating sideways. What I have described is crude work. You take the chance of doing damage using a big hammer and chisels in this operation. The tools sold by Cycle Works will do a neater job with less chance of damage.