One problem related to front suspension wheel bearing has been reported for the 2002 Mazda Miata. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2002 Mazda Miata based on all problems reported for the 2002 Miata.
Left front wheel bearing failure. This is a packed assembly -sealed. This failed one under warranty and again recently. This causes heavy vibration esp. On a Mazda Miata which could lead to wheel being torn off while driving.