OK, I'm a little slow, but now I got it.
I have a mixture of both bearings as I have replaced them from time to time to keep them running like new. The outer bearings seem more prone to corrosion than any of the others. I did not realize that I could just repack some of the bearings myself, hmmm.... on the other hand $5 a bearing isn't so bad, because once the rust starts I will replace them anyway.
I still have to say that I like my Avets, well made, reliable, easy to service (15 minute rebuilds), and great customer service at a great price!
