I have a Kenna door hanger similar to your 23-0051, but my hanger has a (3/4") diameter wheel. Do you have anything with a 1/8" offset and 3/4" wheel that might work? 7/8" diameter wheel will not work, I tried the 7/8 wheel size and it is too big. Trying to avoid replacing the track.
Dave Sr. from SWISCO responded:
September 29, 2015
I believe the roller you need is discontinued and no longer available. You may want to consider replacing the entire track setup with a kit like our 23-500.