There are a lot of different signs you may run into during day-to-day driving that can indicate a problem with one or more hub assembly on your car. Grinding, roaring, knocking, or popping sounds from your wheels can indicate a bad bearing. These can be constant or only noticeable when you turn; they’re usually not audible unless you’re moving faster than 30 MPH.
In the longer term, you need to check your wheel hub assemblies if you notice uneven or abnormal wear on your tires or brake components (rotors, pads, and discs). If you let a professional mechanic handle your tire rotations and brake maintenance, they should perform routine hub assembly checks while they do these tasks. If you like to handle your own maintenance, though, it’s especially important to make sure your bearings are in good working condition.
