Wheel for a bifold door

A home owner from Rocky hill says:
August 30, 2017
I need 4 of these wheels. They are 1/8" wide and 3/4" in diameter. Can't find them anywhere. Guessing they are from the 1980's when the condo was built. Can you help?

Thanks much!

Mb
User submitted photos of bi-fold door hardware.
Profile picture of Tom
Tom from SWISCO responded:
September 6, 2017
Our 21-174 roll guide looks like it could be a match. Take a look and let us know what you think.
Roll Guide
Roll Guide
21-174
$1.20
Bi-fold Door Repairs
Bi-fold Door Repairs
GUIDE
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