Will these bearings work for a vacuum pump?

[OM617YOTA]

Pretty much what the title says. Went to my local bearing house, told them I need 626 bearings, and explained that should they fail they will destroy several thousand dollars and to provide high quality bearings accordingly. Photos of what was provided follow, are these acceptable?

Note: Shield is removable per bearing datasheet and bearing house.

Note2: www.shrinkpicture.com is awesome for converting 1.5+ mb photos to something appropriate for the forum.

Thanks all!

I also have an interesting new noise since this venture, will start a new thread for that.