For sale is an Alstom Power SC-2528 Cover plate for housing bearing.  I obtained from a Lime Co inventory reduction sale and their tag indicates this is for a 18' separator.  New but old stock.  No box but has attached tags.  Approximate measurements are 6-1/4" outside diameter, 3-1/4" bore, 1-1/2" width of surrounding metal with thickness of 3/16".