Take an old bearing of the same size. Grind a few thousandths off the OD. Now you have a nice tool for pressing them in with a vise.
Unless you are 100% sure the jaws are parallel and square, do a little at a time, and turn by 1/3 [120 degrees].
Or tap with a medium hammer and aluminum or other soft metal drift, again, turn 120 degrees each time it moves a little. You should be able to get the feel for how hard to tap to get a little movement, and do one tap per 120 degrees.
The sheet metal stamped pulleys, you have to support well to avoid deforming them.
When installing, never apply force in a way that transfers through the balls. Or from inner to outer race in other words. Always move the OD by the outer race or the ID by the inner race. When removing a known dead one, this doesn't matter.
I started doing this back 1988 or so, when the only source was Subaru, and they wanted $90.00 each. High quality contact seal bearings were around $7 - $10 each.