Tandem Patio Door roller assembly replacements

A home owner from Penrose, NC says:
Have 18 yr old patio door with worn roller assemblies. Assembly has 2 brackets 3 1/8" x 1 1/8" x 13/16" (L x H x W). Adjustment screw is located 7/8" up from bottom of bracket. There are 2 machined slots near bracket top 1 1/4" x 3/32" (L x W) located 7/8" approx. up from bottom of bracket on adjustment screw end.

Roller wheel diameters are 1 1/8" spaced 1 11/16" apart. Cannot find any markings on roller assembly nor on aluminum frame patio door. Home is modular home. Original house specs show three window manufacturers: West Windows, MW Windows, Peachtree Windows. Don't know if these are same manufacturers of doors. Patio door specified in specs is SGD.
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Paul from SWISCO responded:
I'm sorry, but I'm not able to identify what you have based on this information. Would you be able to show us a picture of the part in question out of the door?
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