Patio Door from house built in 1999

A home owner from Temecula says:
I don't see any markings at all.

The rectangular part of the roller housing is approximately 1.25" x 2.5". It's got a tab for a holding screw. The screw is not shown in the installed photo but you can see the hole. The dimensions of the housing is: 2-1/2" x 1-3/16" x 0-11/16".

Thanks for your help!!!
Roller
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Tom from SWISCO responded:
Hello! The first roller that comes to mind is our 81-269. It matches your dimensions and style almost exactly, with one exception: the screw tab. Yours goes back while ours goes up. Looking at your pictures, part of me thinks that yours might have been bent back, and that it once went straight up like ours. Could that be the case? If so, could you do the same with our 81-269?
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