I've noticed the last couple times I took my boat out that my wheel bearings seem to be running warm. Its a tandem axle boat trailer with two 3500lb axles. I serviced the bearings the year before last (did not service last year because I only took the boat out once) and the bearings have been running cool all year. Average temp has be been about 100 degrees plus or minus a few degrees all the way around. The last two trips have been about 107 on the front axle and 220 on the rear (rear has disc brakes) plus or minus few degrees. Before a trip, I always top off the grease so that the bearing buddy caps expand out slightly as directed by the manufacture. The only thing I have done differently is inflate the tires to 50 psi. I was running at 35psi which I mistakenly thought the tires were supposed to run at. I dont think that is the issue because I'd think that the bearings would be running the same temp all the way around if that was the case. Is my axle with brakes running hot? Seems strange each axle would be running a uniform temp on both hubs. Thoughts?