Hot rotors - wheel bearings?

[alia176]

I'm noticing lately that my rear right rotor is considerable hotter (200 - 275) than my rear left. After a long hwy run, the temp was 450 deg F vs 250 on the other side. The temp is acquired by an IR gun. At first I attributed this to a dragging brake pad caused by the caliper piston not retreating. The caliper, rotor and the pads are new but the problem persists. I'm not hearing a roaring type sound but it could be present and I'm simply used to it. Is this a sign of wheel bearing going south?

Assuming it's the wheel bearing, I'll be using a hyd press to do the job. Wish I had the hub tamer tool but oh well. Are there any messages written previously I can refer to for this job? I'll perform a search if needed but that might turn up tons of hits.

thanks.