I blew out a bearing on my T2r, I don't believe they are 007 spec and I didn't relube them before I drove the car. A couple were less lubed than others after about 8 packs worth of driving, and one bearing was jacked completely, probably from a hit. The bearings that were less lubed spun faster, but you could hear the metal to metal contact, so I added some oil and they now feel like the rest, they don't spin as free, but don't make noise. Is it normal for the rubber sealed bearings to not spin for that long? Is carpet too dirty to run metal sheilded bearings?