Bearing removal and help identifying rims

[quadracer351]

Hey guys I'm currently breaking down my rims from my cb750k4 and was wondering the easiest way to removal the bearing. This is my first time doing wheel work and I dint know if there's a tool out there to remove it or if you press them out. Also when I bought the bike the guy threw in another set of wheels and I would like to know what cb750 it came from. First and second pic is of the wheel I'm having powder coated and want to remove the bearing from. Third and fourth is of the ones I need identified.

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[Rider52]

The aluminum rims probably came from a CB750A (Automatic). The rear sould be a 17" rim.

 

[bradj]

And a cb550 rear hub will lace to that hoop if you reuse the spokes in the 17 avon makes the correct tire to use them

 

[o1marc]

It may not apply here but I was just removing the CBR600 wheel bearings and they cannot be pressed out as there is a lip that each bearing rests against in the wheel. It's hard to move the inner sleeve out of the way enough to use a punch or screw driver to drive one out. A blind hole bearing puller is about the only way and they are very stubborn unless you heat the aluminum around it before slide hammering it out. Once you have one out you can drive the other side out with the proper size socket on an extension. I do not recommend reusing bearings that have been driven out

 

[LuckyLuci631]

I use a blind hole/pilot bearing puller from harbor freight works great and has paid for itself already

 

[speedfourjoe]

If you don't have a bearing puller or can't slide the spacer tube over enough, but have a welder you can just weld a bolt or nut in the center and knock it right out. When installing the new bearings only make contact with the outer race. If you have a lot of sockets you might have one the right size.

 

[o1marc]

When knocking old bearings out by hitting the inner race it puts flat spots in the balls that will make the bearing fail quickly under use. That is why you never reuse the old bearing. Even with a blind hole bearing puller you are slamming the inner race against the balls damaging them. Thats why you use a large socket or bearing tool to only push the bearing in by the outer race, not stressing any other part of the bearing.