I think Warren has hit the nail on the head!Thanks for all the help. Owen > I would not think that what might be considered to be a stress relieve heat > treat process would cause bearing bores to go oversize. I have seen many > incidents of oversize bearing bores. These were the result of overheated > bearings. The cups had gotten so hot that they had lost their press fit to > the hub and had spun in the hubs. There was a wear pattern. I have never > thought that only heat will cause the bearing bores to go oversize but is > the result of the combining effects of heat and loading (stress) on the > bearing and hub. I would speculate that just maybe your hubs were oversized > before the finishing process and that just maybe the heat destroyed the > material someone before you used to fit the cups to the hub. > > I have used two materials to repair worn hubs where the damage has not been > severe. Press fit strength can be restored to a satisfactory level with > Loctite #640 sleeve retainer. I have also used Loctite #66040 Quick Metal in > a couple of cases that I remember where the damage to the bore was more > severe. > >> Warren Anderson > Sedona,AZ > >