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@Dutch_Cheese
Go to the nearest DIY shop and buy an expander / empansion bolt bolt in the right size.
Release the nut, stick the expander part into the bearing (axle removed), fasten the nut, hit against the backside of the bolt to drive the bearing out.
Used to do this with Campag hub and pedal bearings (cups). With Dura Ace hubs too.
Worked fantastically.
Use the old cup to hammer the new cup back in place (and a hammer of course).
No expensive tools needed.