We have a simple guide for you on how to remove bearings from a wheel. The instructions are both in text form and we have also recorded them for you.
All you need to prepare is: 2x old wheels, a 5mm Allen key, a hammer, and of course a wheel with bearings.

We place the old wheels on the table and create a gap between them.
So that the bearing could fail.
We will take an Allen key, turn it to the side, and try to knock the bearing out of the wheel.
If it doesn't work easily, try tapping with an Allen key from multiple sides. WARNING! May your bearing not fall apart.
We turn the wheel and knock out another bearing. And we are DONE!

Martin Nogol