im not an expert but it might be the wheel bearing seals not the bearings, if thos pop out then the wheel bearing grease will leek on the roter and start smoking and may catch on fire.
I would say either your brakes, or there's some part of your wheel well or mud flap hitting your tire, maybe something is loose or your suspension is worn and is allowing your tires to make contact with the wheel well.
that could be a variety of things, wheel bearings, u joints, rear end...
Sounds like wheel bearings.
The bearings on the alternator could be going bad. Remove the belt from the alternator then spin the alternator by hand to listen for grinding.
It could be brakes, bearings or something else altogether.
if its while your driving it could be wheel bearings
Could be the Springs doing that. If it's a grinding noise, then it's the wheel bearings.
check CV joints, if bad replace shafts and joints assembly
wheel bearings, worn brake pads, dry u-joints could be one of many sound travels on a vehicle but start with those
Wheel bearings, and if they're making that kind of noise your spindles could be shot by now too.
Depending on the what type of car or truck could be the brakes or rotors low brake fluid, or the boot is open and its gone dry, wheel bearings. hope this helps
the rubber bumpers are gone or worn out on the side motor mounts
Because Hydrogen is the single smallest element and therefore escapes through the rubber's molecular structure like ball bearings through chicken wire if you could picture that.