Unbrakeable

Just replaced my CV axle on the passanger side, and went for a drive down the road, came back and put my hand on the axle (the part that seals with the hub? Lower joints?) and it is warm to the touch. The drivers side, which is stock, is cool. I at first thought it was my brakes dragging and transfering the heat, because the rotor was getting very hot (too hot to hold my hand on it) but after a good look and lube of the caliper and a spin of the tire while it was jacked up they don't seem to be sticking at all. You'd think that the heat is coming from the rotor right? Yet the rotor on the stock side, which I haven't messed around with seems equally hot, yet only the new CV seems warm to the touch. I have tried loosening the locking nut thinking maybe I put it on to tight but it hasn't solved the issue.

Could my issue be that my new axle is conducting the rotor heat more because it is new? Could it be that my joints are just breaking in? I don't think it's my bearings because it spins nice and cleanly and doesn't have any wobble or grind. A friend of mine who is a bit more mechanical then me says he's thinking that it's getting hot because it is new and isn't broken in, and thinks that maybe the rotor heat is unrelated, due to the fact that both rotors are heating up equally and only the new cv being hot.

Any help is apreciated.