Removing these seals is a frustrating process.  Prying them out usually doesn’t get you anywhere.

I bought Ed Korn’s tool a while back and it can be used for pulling both the races, and the seals.

Here is how you use it to pull the seals.

Here is the tool assembled

I first cut out some of the seal’s rubber with a razor blade.
It was easier to get the tool installed that way.

Then you tighten the threaded rod with the allen fitting at the end of it.  By doing so, it expands the nut against the screws and presses them outward so they ‘catch’ under the metal part of the seal.

Then you install the collar, plate and washer and nut.

Once you begin tightening that nut, it will pull the seal out into the collar.

You can then loosen the nut, and break the old seal free with a few taps with a hammer.