Ok, I have an apparent problem. I have a Rikon 18" bandsaw that the lower blade guide bearings have a short life. They don't wear out, they collect sawdust and seize up. The last set made it through about 10 hours of resawing some oak and now they are locked up. I removed the metal covers near the bearings to see if that would disperse the sawdust better but it didn't help. Does any one else have this issue or is it just normal operation for bandsaws with roller bearings for guides. The upper bearings have not been an issue. Also I tried cleaning the bearing but that has proven to be ineffective so far. Any ideas?