Squeaking Alternator

On my 99 model, In the past few days, I've been hearing kind of a whining/chirping sound under acceleration. I suspected the idler pully, but I was wrong. I checked the belt, both idler pullys, and finally just for the hell of it, spun the alternator pully with my hand. Well, I found the noise. Its very faint while idling, but under acceleration, or above 1000 rpm, its very noticeable and annoying. Is there anything I can do to stop this noise, short of reuplacing the alternator? It's charging fine, so I'm not really interested in replacing it.

sounds like bearings. Is there someone locally who rebuilds them? I had good success in the past (when I lived in Columbia) having several rebuilt for less than the cost of a new one. Given the prices of rebuilts at auto parts stores these days,however, these businesses are probably a dying breed.

I'll try and see if I can find someone who can rebuild it. I don't know right off of anyone that does that anymore. Thanks for the info though