This is not a criticism so please don't bash me for spewing my own inner thoughts out loud.

I would be really surprised if the bearing holds up for long. It's got to take an awful lot of punishment. I really hope it does though, something like that could be a real game changer.

Then again, if it's cheap enough and easy to replace, hell just get it to last a full day of racing. If it can last for 2 hours of running and only costs $5 and a few minutes to replace, I'd do it in a heartbeat.