To shed some light on why it is a Do Not Reuse part.
It looks to be an aluminum alloy part pressed fit onto the shaft. Just the act of pulling it off would be enough to cause it to distort and unable to maintain proper fit when reinstalled.
It looks to be an aluminum alloy part pressed fit onto the shaft. Just the act of pulling it off would be enough to cause it to distort and unable to maintain proper fit when reinstalled.