What are the common signs of loose hub bearings in a vehicle and how can they be repaired?

Common signs of loose hub bearings in a vehicle include unusual noises like grinding or humming, vibration in the steering wheel, and uneven tire wear. To repair loose hub bearings, the wheel hub assembly may need to be replaced by a professional mechanic. This involves removing the wheel, brakes, and other components to access the hub assembly and replace it with a new one. Regular maintenance and prompt repairs can help prevent further damage to the vehicle.