ASE Question about brakes and wheel bearings.?

How can i tell if my wheel bearings are bad? I replaced my Calipers on both sides and my pads. I can't do my rotors myself b/c it's a 97 honda and there pressed on. My rotors are in need of replacing but smooth and i don't believe them to be the cause of my grinding noise. The grinding noise is when i am driving and gets worse at higher speeds and tends to pulsate a bit. When i apply the brakes it doesn't get any worse and feels good under the foot? Could my bearings be gone? Thanks to all you techs out there I appreciate the help!