bi fold door top roller guide

A handy person from Philadelphia says:
the o.d. of the widest part is 13/16", the narrow part is about 5/8". The spring pulls down, into the door, so that the roller does not get stuck on the screws in the track. I've tried a 7/8" replacement roller, which does fit in the track, but its gets stuck in the screws as the spring pushes up.

Thank you for any help!
User submitted a photo of bi-fold door hardware.
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Paul from SWISCO responded:
Hmm... the closest thing we have is our 23-143. Check it out and see if you can get that to work. The nylon guide is also 5/8" in diameter, and the height (including metal bracket) is 3/4".
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