I've noticed the typical bad wheel bearing symptom noise when I installed my cross drilled and slotted rotors. Not sure if it's my rotor that's causing the noise. What are some other physical signs of bad wheel bearing?

 

do you hear noises while braking or all the time--wheel bearing nosises tend to get louder the faster you are going--we usually test them by raising the vehicle on a lift and listening to each side to see if it is bad--you can use a jack if no lifts are available(but be careful) jack up the font of the vehicle and listen to the wheel bearings(I use a long screw driver and put the tip close to where the axle mates to the hub, and put your ear to the handle and see if you hear any grinding or whining noises) but please use caution in doing this(usually takes 2 people-1 to listen and one to push on the gas pedal) you can also stop on of the wheels so you listen to one side at a time or jack up the left side listen and then the right

 

I hear it when my car is moving but it gets louder when I brake. I did some search and found someone that said it's the rotors but I'm still not sure.

 

Lift up the wheel you think it is and try to wiggle the tire. If you feel play in the wheel it's probaly the bearing.