I'm happy with most of my Festool tools. But, I've come to use my CMS-VL router table more as a toy than a mobile router station. It's just not heavy duty enough for the work that I do. Putting a 4x6 on the sliding table to rout the end with a profile caused chunks of phenolic to break off the "top" two bearings. Looking up the parts, it appears that there is both a roller bearing and an eccentric roller bearing. But, when I turn the bearings, I don't see any eccentric behavior. I need to replace the two bearings closest to the table top. I believe these are the standard bearings. If anyone can explain to me the difference and if I ordered the wrong parts, I would appreciate it!