Call me anal (everyone else does), but I would return them for a replacement. You payed good money for them and deserve a good product. I have installed hundreds of bearings and knock on wood none failed right away. I had to install some that didn't look so good when I was in some far away land and didn't have much choice.
Most bearing warehouses (King or such) can cross over your ball bearing package to a good high quality tapered Timken set up and the last one I did ('57 half ton) cost less with seals then I could have got from a truck parts supplier. Just take your old package with you so it can be measured, no trick here.
