Hi. Can anyone help me?  I am replacing the bearings on the rotary blade shafts on the deck of a Craftsman ride on mower .  Can anyone tell me what the leather/fibre/? washer is made of that sits between the shoulder and the bottom bearing.  I have removed the bearing by grinding it off and I'm looking to replace it with a better quality bearing.  Any help would be appreciated.  Thanks.
	
		
			
		
		
	
			
			 
				 
 
		 
 
		