go to youtube , there are many videos showing it done with bread , grease and even wet paper.

You could possibly rent a slide hammer at the parts store.

fill it up with grease put a thin rag over it and hammer a wooden dowel close to same size in bushing will pop out.
Have used tree limb whittled down.

FYI... this is another sure option although not practical for the home mechanic I realize. Just wanted to make sure you knew about a tool like this. It expands when you screw it together and locks tight behind the bushing or bearing. Yes you have to have the correct size as they have different ones for different size bushings. this one fits a nice range of bushings, not just one size. I have 3 of these.

It screws onto a puller or a 5/8 fine thread slide hammer for faster service.
I have used them to rebuild roper truck pumps and many other little jobs like yours.

DUH! lots of unnecessarily difficult suggestions here.

Get an electric drill and the right size bit for 1/4-20 thread tap. Drill halfway between the ID and OD about 180 degrees from each other. Then tap. Insert 1/4-20 bolts and pull out as you wish.

The roller part of the bearing is available as its own part but usually either the small one or the large one with the big steel ring cost the same from RockAuto.

If you buy the new assembly, it's easier to drill and tap the holes on the bench.

R.