Mitchell,
I know you may not want to go to a bearing supplier, but I would not totally count them out. SKF Reliability Systems is a good source for root cause bearing failure analysis. Joe Conyers can do the analysis or provide other information. His e-mail is joe.b.conyers@skf.com. Also, I have used J V Poplawski, who is a PE that specializes in bearing failure anaylsis. The company is located in Bethlehem, PA but they travel all over. Their phone number is 610-758-9601 and their e-mail is info@bearingspecialists.com You can view their website at
http://www.bearingspecialists.com. I hope this helps.