Defender hub has a rim

Hi all

While changing the wheel bearing on my 300, I trashed the oil seal trying to locate it.
I found that the hub had a small rim around it, where the seal sits, that picked off in places, but prevented the seal from locating.
I filed it away and fitted a new seal, and it seems fine. the question is, is this normal.
or is my hub damaged.

thanks all

pic , probably damaged though

Sorry no pic, all reassembled now, the rim was so fine that Im not sure you would see it in a photo, Like I said, you could pick it of with a screwdriver.
I'll have to monitor it, I was just wondering if anyone has ever seen this before.