Replacement rollers for patio door

A handy person from Wharton NJ says:
No markings are found on the hardware. Each set of rollers (2 rollers per set) has and adjustment screw and a screw to attach the mechanism to the door, one mechanism on the right and one mechanism on the left. I have two sets of patio doors that need replacement rollers.
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Casey from SWISCO responded:

Hello, thanks for posting! Take a look at our 81-095 and 81-138. Compare their dimensions to yours to see if either could be a match!

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