I have, but they are out of stock and have been for quite some time.
I did contact Boca about these bearings. The speed limit is 25,600 rpm, so they do not recommend these bearings in these motors - the bearing in my original post is what Boca recommends, but they are ABEC 1.
abec357.com sells a very similar orange shield bearing for a little less, but they state that the speed limit is 26,500 rpm.
TRBRC bearings seem to top out at 35,000 rpm, which is again too low.
So I just ordered these: https://www.bocabearings.com/products/smr626c-2os-7-nb2-18200 same bearing you mentioned different size. I called bocca to confirm they are ok for a motor and was told they are. Mike who I talked to couldn't find the exact rating for that bearing but told me he believes its 50-55k rpm and should be fine for a brushless motor. Im so confused!