Use some long tool (big flat screwdriver, steel rod, anything made from steel that you can damage), put it through hole from other side and back it against inner race of your bearing. Then gently tap bearing out of frame.
Make sure to shift position of your tool around the bearing, so bearing is going out straight. If you will try to get it out askew, it will be much harder to do and you can damage your frame.
Definetly use new bearings when you will be assembling it back. Hammering old bearings out will damage them, so they will be having much shorter life, if they will be reused.
5 Comments
Tap it out
Looks like a pf30/bb30 bottom bracket. I would use a bearing extractor to press it out.
That’s a BB30.. you need to remove the retaining ring with a snap ring pliers. Then you can push the bearings out .
If it was me I’d be using an internal bearing puller like this:
https://youtu.be/l6BfW4ukcL4
Park Tool do a cruder version as well:
https://youtu.be/2VnwKrC9rS0
Refitting should be done with a proper press tool as well:
https://youtu.be/xgf55zsFW8Y?si=RwGfg_pngTpHJVfE
It is hammer time.
Use some long tool (big flat screwdriver, steel rod, anything made from steel that you can damage), put it through hole from other side and back it against inner race of your bearing. Then gently tap bearing out of frame.
Make sure to shift position of your tool around the bearing, so bearing is going out straight. If you will try to get it out askew, it will be much harder to do and you can damage your frame.
Definetly use new bearings when you will be assembling it back. Hammering old bearings out will damage them, so they will be having much shorter life, if they will be reused.