2010 Mazda 6 , replaced wheel bearing 4 times

2010 Mazda 6 : Bearings on left front wheel have been replaced 4 times Axel was also replaced during one of the times. Is there something about the Mazda 6 wheel assembly that would cause the bearrings to be going out so much or is it just bad parts?

The Driver side front bearings now have been replaced 6 times in the last 2 or 3 years The hub and spindle have also been replaced Are the replacement bearings really this bad or there something else going on with the Mazda 6?