leeyack:
Signs of a bad wheel hub bearing may vary in severity. Some may be hard to detect resulting to damage before repairs can be taken. The time period in which damage occurs is attached to driving conditions and/or the mechanical procedures that were used at installation. Noise is a foremost sign of a bad wheel bearing or wheel hub bearing. Here are some signs of a bad wheel hub bearing and other wheel-end damage:

Snapping, clicking or popping sounds
This can show a bad or damaged outer CV-joint but it also can be caused by excessive bearing endplay, usually associated with inadeq
continue reading;http://www.automobileglobe.com/signs-of-a-bad-wheel-hub-bearing/

La click, la u know the rest.