The sellers were touting them as unsealed or sealed units, the pic a few posts up supplied by alittlerusty is of a sealed unit also which is why I assumed they were legit (skf going by the screen grab, thanks alittlerusty, that was a big help by the way and just wanted to mention that).
Thanks for the link to McMaster Carr, I've never seen so many types of bearing, felt all exited, like a kid in a sweet shop. I think I'm going to enjoy brousing that site lol.