[Qmulus]

Sounds like a wheel bearing to me. Bad wheel bearings will be noisiier when loaded, so in a left turn the right will be noisy and vice versa. Yes the "scraping" you are hearing is just the brakes. It is hard to put enough of a load on these sealed rollers bearings by just spinning them. If they get bad enough that you can feel play, they will be so loud that you will have NO problem telling what/where the problem is.