Re: Toasted a wheel bearing on my Cranbrook.
Every single hub bearing failure I have seen from my customers ends up being traced to distorted bearing cups eating parts. I have seen several cheap hubs fail under motorized stresses when the bearing cups simply deforms slowly, eating bearings until it fails completely or is discovered. The races seem to be far too soft on the cheap hubs to live at 30+ mph.
The biggest cause seems to be lack of proper lubrication.
Grease those hub bearings good and often people!
If more is better, then too much is just enough.
If you can't afford it, build it yourself.