So I thought I got all of the bearing out of these wheels by hammering lightly with a long screw driver from the other side. But did I leave an outer casing there or something? And I can't get to it from the other side cuz there is a rise or like a ledge behind it. OR is this part of a very deep bearing? We're the old ones like an inch deep? Any ideas for getting this out? Thinking of hammering with a screw driver sideways against it and just bend it so I can grab it with pliers.