Pivot for a bifold door

A home owner from Newington, CT says:
I have a mirrored bifold door on my bathroom closet that is quite old. The sliding wheel (see photos) that then pivot fits into and that goes in the bottom track has worn/broken over the years and will no longer stay in the track, consequently the door will not slide. I am not able to find a replacement anywhere. Can you help?
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Tom from SWISCO responded:

Hello! This look very similar to our 21-174 roll guide. Review our dimensions and see if this would be a suitable replacement for your original part.

Dimensions for 21-174
Dimensions for 21-174

Bi-fold Door Repairs
Bi-fold Door Repairs
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