Trying to find replacement roller assemblies

A home owner from Sioux Falls, SD says:
The assembly is stamped Production Enterprises. Hialeah FL
I measure the unit as 11/16 wide, 1 & 1/2 inch high including roller 1 & 3/8 without roller.
The unit measures 3 & 1/16 long. Y best guess would be it was installed approximately 1978.

Thanks
Jack DerHagopian
Roller
A home owner from Sioux Falls, SD says:
Maybe these are all standard, but I thought maybe I should add that it measures about 1 3/8" from the end with the adjustment screw to the center of the top screw that attaches it to the bottom door drame.
Profile picture of Paul
Paul from SWISCO responded:
Thanks for your photos. We have two patio glass door roller assemblies that are 11/16" wide: Our 81-023 and 81-277. Please compare our measurements to yours and let us know if either of them will work.
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