What kind of vehicle? How many miles on it? If it is over 120,000 miles, yes there is a good chance that the front wheel bearings are making noise especially if you have not done a brake job in all of that ime and greased the bearings. It could also be a loose brake pad on the front disk.
Wheel bearings don't hum. How about a traction control or anti break lock system malfunction? Or maybe something in your powersteering system
SOURCE: noise in front end, sounds
You say the rear wheel axles and bearings have been replaced, you mention nothing of the front wheels, you have the symptoms of a front wheel bearing being worn out, remove them and check for pitting in the bearing rollers or the bearing races, I am sure you will find a problem. Hope this helps solve your issue with the bearing noise.
SOURCE: Grinding noise in the left
grinding on front wheel is caused by 2 things.
a bad or loose wheel bearing,or worn out brakes, have them both checked
You might also want to check the level of fluid in the power steering
reservoir - low or lack of fluid will also cause a noise (although more of a
whining than a grinding).
SOURCE: Humming noise comming from front left wheel area of 03 Sebring
it may be just sound of uneven wear of tyres
SOURCE: grinding noise in front end of 98 malibu the wheel
you got a faulty bearing in your vehicle, tell me dose the noise get louder as u speed up let me know by texting 4195458235 I will be happy to help you at no coast 2 you
SOURCE: My car makes a bad growling noise. Everyone said
WHEEL BEARING USUALLY STARTS MAKING A ROARING TYPE NOISE WHICH USUALLY GETS LOUDER THE FASTER YOU DRIVE, SOMETIMES THEY WILL BE LOOSE , TO CHECK JACK UP THAT WHEEL AND GRAB TOP AND BOTTOM OF TIRE AND SHAKE, IF THERE IS MOVEMENT, TRY TO GET SOMEONE TO ROCK TIRE FOR YPU AND WATCH WHERE AXLE GOES INTO CENTER OF BEARING AND SEE IF AXLE IS MOVING WITH TIRE MOVEMENT AND SPINDLE REMAINS STATIONARY, THEN IT IS BAD BEARING, OR SOMETIMES THERE WILL BE NO MOVEMENT, THEN BLOCK REAR WHEELS AND RUN CAR WITH THAT WHEEL IN AIR AND SEE IF YOU HEAR NOISE, GOOD LUCK.
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