If the bearing race or cone wasn't seated or the bearing was misaligned, you would definitely know about it. It would be very audible.

You could also check for any run out on the wheel rim, which would confirm run out at the hub, remove the brake calipers and use something that won't damage the rim on contact.

If you find it has run out, swap the wheel over to the other side and recheck to make sure it's not a bent rim.

This will also help eliminate any worn steering/suspension components.
Do this check and post back the results.

ozzy