Really cheap angular contact bearings

[breathe]

http://www.amazon.com/Thrust-Angular-Contact-Bearing-17x40x10/dp/B002BBKI1M]Amazon.com: 50 Thrust/Angular Contact Bearing 17x40x10:Best Deal: Industrial & Scientific

Anyone tried these. I know several people have had decent luck with VXB buy at less then $1 a bearing are these going to be junk? maybe they will be perfect for the hobbyist.

[bjmorel]

That looks a lot more thrust than angular contact. I think I could get some SKF 7203 BECBY for about $25 a piece, and probably a Nachi for under $10.