I got a grinding coming from my right front wheel, it sounds like metal on metal, it was doing this and I changed the pads and rotor, this fixed it for about a month, I checked the backing plate and it’s not bent and there’s not a rock stuck that’s rubbing on the rotor. I was thinking it could be a wheel bearing but my tire has no play in it when I jack it up. Also it’s a timed noise- it will grind once on a full rotation. I will post a video! Any input would be great!