A quick question.
If I have a problem with my front right wheel bearing, should I still hear the whirlling noise even if I was coasting down hill in neutral?

The reason I ask is because I hear a bit of a whirling noise from my front right when I'm coasting in 2nd gear but as soon as I put it in neutral the noise stops. I haven't noticed the noise is any other gears, but I haven't tried them all.

 

Now I'm no scientist... but I'm not sure I know a way of applying power through a bearing. In other-words, your wheels aren't powered by the engine through a bearing, and if the noise stops when you take it out of gear, I'm pretty sure it wouldn't be a wheel bearing....