Does anyone know?

Yo-Yo Mods and Maintenance
1

I want to know if there is a way to clean a bearing from a protostar, as the bearing cannot be removed as far as I know

2

The bearing is removable with a bit of effort.

Yuki

3

You have to pry the spacers off. Then you can access the bearing.

Like this:

https://www.youtube.com/watch?v=INyRFN49_qc