It takes a few trys, even after doing it if its been a few months it takes me a couple runs at it to get it. You gotta really bang it down, try to get it to where its just warm and the bearings still cold so you don't have to fuss with oven mitts to hold it.

Once in a blue moon the stars are lined up just right and it pops out on the 1st go... but that's rare
I've heard some have had luck with a hooked dental pick also.

New bearing in: freeze new bearing and heat cap then push cold bearing in warm cap.