no identifying marks on roller units or doors but they are ~1985 is vintage

A home owner from Northern California says:
Sorry - I did not take installed pictures
Thumbnail of the uploaded file named door rollers 002.JPG
Thumbnail of the uploaded file named door rollers 003.JPG
Thumbnail of the uploaded file named door rollers 003.JPG
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Bob from SWISCO responded:

See either our 81-093 or 81-269. Look over the dimensions and see if either roller could work for you. 

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