So NTN and the like cost $20.00. I get that bearings on ebay that are cheap might be of questionable origin and quality. But what about place like this...
https://www.thebigbearingstore.com/6...aring-30x42x7/? At $4.00 does one presume they use same unreliable suppliers Hambini warns about?
I don’t even see a brand name on these. You have to ask how good a product could be if the manufacturer isn’t even willing to put their name on it. NTN, NSK, SKF, F.A.G. Those are 4 very large companies and any one of those should be very good. If you’re spending $30-$40 on tires, $2000 on the bike, you may as well spend a bit on good bearings that, if not abused and aligned properly should last a very, very long time.