[wingnut60]

I haven't seen a mileage figure anywhere in the Dexter brochures, but seem to remember a 5-year warranty.

The hub temps are probably the best way to know something is beginning to go wrong--either by touch or with a IFR gun. For my part, I try to remember to walk around the trailer when first stopped to check rubber/wheel temps by back of hand. Not a great way, but if I can keep the back of my hand in contact with the surface, it can't be too hot to my way of thinking.

As for the pro truckers, I have seen a lot of them checking tires/brakes/hubs, but probably not enough of them do this, judging by the number of hot-brake fires you can see evidence of by the side of the road.