Wheel bearing will sound like a roaring/propeller/airplane noise. Will increase and decrease in relation to vehicle speed.
Mildly swerve left to right as was stated. If noise changes it points to wheel bearing, but beware, it can fool you as to what side it is.
Jack up wheels. Grab tire at 12 and 6 oclock and pull/push alternately. Bad bearing is usually accompanied by play in the hub. Play at 3 and 9 could indicate slop in an inner or outer tie rod.
Most of the time just spinning the tire by hand you will feel the bad bearing. I don’t recommend getting near spinning wheels to diagnose anything. One wrong move and it will have its way with you.
Not hard to replace. Basic steps are remove wheel, remove and hang brake caliper out of way, remove rotor, remove axle nut, tap axle towards center of car to break free of bearing splines, remove hub bolts from behind spindle and remove bearing/hub assembly. Rear is same minus axle/axle nut.
Will probably have an abs sensor that is made to bearing or will have to be removed and transferred to new one. It helps to get both front wheels off the ground if it’s a front bearing, then you can put car in neutral and steer spindle left/right as necessary to access bolts.
Sometimes a judicial amount of pb blaster is necessary to soak everything unless you have strong air tools. You should also replace the axle nut , and torque it to proper specs.
Edit to add: sounds crazy but you could be hearing a tire. If your alignment is out it can cause an unusual wear pattern called feathering. Left unchecked long enough it can get pretty loud.
You typically don’t feel a bearing problem as vibration, noise only.
Sent from my iPhone using Tapatalk