I'm assuming the last pic is the outside housing where the sprockets mount? What has been rubbing up against it, has the bearing done that? If this is the case there is an incorrect or missing distance piece, nothing should be touching that housing except the 2 bolts holding the bearing on. Assemble the parts on the shaft as it should go together without the housing and take another pic for us to look at. I don't think the problem is the clutch