BB92 to BB30 Bottom Bracket

I would look at the Kogel version.

Way more but I have been super impressed with their stuff.
 
I don't think there's an official adapter or conversion BB available for that. You may be able to get the proper inner and outter diameter bearings, but I'm not sure what you would do to keep them there since there's no seat and c-clip like BB30 and a PF30 is a larger diameter at I believe 46mm compared to BB92 at 41 or so and gets pressed in with an outer lip. If they do fit and stay in place, I forsee creak city. If it was me, I'd get a new crank and get the correct BB for the frame. Is this a new frame build or are you just trying to use a crank you have?
 
On my other bike I used a Raceface BSA30 BB, the bearing lasted a month.
For the past year I have be running A Rotor BSA30 with Enduro bearings without problems. I think the Raceface BBs are junk.
 
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