Bottom seal replacement on a Woods BB720X rotary cutter

   / Bottom seal replacement on a Woods BB720X rotary cutter #21  
It appears that the new seal doesn't have any rubber contact with the shaft, I don't see how it can keep from seeping, unless there is a rubber contact area on the back that I can't see. I can understand the full metal cover, as that would keep long grass or twine that got wound up from abrading the seal itself. That has to be a nearly impossible area to clean out without removing the jumper.
 

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