My broken screen door wheels look like your 84-074N but does not have the "tube" on the top which I guess hold the height set screw.
Would they work ? My set screws are directly mounted on the door frame
Paul from SWISCO responded:
May 1, 2014
This looks a lot like our 84-066, though the wheel is stainless steel. You could use the 84-074N if you think that's a better choice, since the top tube can be removed.