Bad alternator bearings

[idahovette]

Local K-Hardware store just down the street has "Donut Fridays"

 

[newguy11]

Here are some pictures with white crayon applied to the crank pulley. Before and after running.

There is also two pictures of the belt to show condition and seeking any input on “glazing”

 

[backwoodsman]

I know the thread is a bit old, and I didn't read through the whole thing, so someone may already have suggested this, but just in case... It's really easy to replace the bearings in an alternator. So if you have an alternator that's otherwise good, it makes sense to save a lot of money and keep your known good alternator, rather than try your luck with some junk new alternator. Just get good name-brand bearings, not some cheap Chinese junk. They're very common bearings, readily available online or at any auto parts store.