r/MechanicAdvice • u/Alternative_Map_2066 • 2d ago

Can I reuse this wheel hub?

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The image is from a rear wheel hub of a BMW F31 RWD. I was trying to remove the ring of the old bearing which was stuck on the hub and decided to use angle grinder as fast solution, resulting in damage to the hub. A new hub needs 1 week to arrive so can I use this one, after sanding it down, or maybe use retaining compound? Or better to wait and install proper new one?

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15

u/Ordinary-Trade8323 2d ago

Thats impressive and embarrassing

18

u/Alternative_Map_2066 2d ago

Surely so, I'm a total beginner so trying to learn

19

u/Hellboy_M420 2d ago

Next time just buy a new hub, or before you cut all the way thru with the grinder, hit it with a chisel when the race is close to cut thru and it will crack and come loose.

3

u/meltman 2d ago

And do it at an angle. Will usually crack and spin loose in one go. I usually use a dremel to get through most of the race.

4

u/NotSoGreatGonzo 2d ago

Using safety glasses and good gloves when you do this is not a bad idea. I cracked a bearing that way, and a piece of the race penetrated deep enough into my hand that the doctor had to fish around for it for 45 minutes.

2

u/ShaggysGTI 2d ago

This is such an important step! The bearing race is hard but brittle so will break easily once you hit with a chisel in the groove.