Make it easy on yourself. When you get the front wheel in the air use a flat blade screwdiver to push the brake pads (both sides on both sides) away from the disk. Then spin the wheel. You can then set a fixed point (like a WD-40 spray nozzle hose) near the brake rotor and watch the disk in relation to the hose tip to see if there is any "in and out" in relation to the fixed point (same concept as wheel truing). If the amount of "play" is very small (or none) then I suspect your brake fluid needs changed. If the scrubbing noise is heard without brake pads near the rotors its your bearings.