I apologize but I didn't record any size info on this part, but I think that's a pretty good picture.
If other info is needed please let me know.
Paul from SWISCO responded:
April 23, 2018
I am afraid your closet door assembly has been discontinued and there is no known replacement. If you happen to just need the wheel, you can go with our 10-109 and 33-087 screw.