1980's prefab sunroom door

A quick learner from Southern California says:
July 5, 2021
In the attached photo:

My parent's sunroom door is as old as Taylor Swift and the door doesn't glide anymore. This is my problem to fix, apparently.

Pictured are both Left and Right wheels, however that weird brass piece on the top left came apart when I was wrestling it out, I'm not sure if it needs replacing but I'm holding onto it until my replacement arrives anyway.

White: 2.15"
Red: 1" diameter concave plastic wheel
Blue: 1.20"
Green: 0.75" and kind of a T-shape

Thank you for your help on this matter!
Thumbnail of the uploaded file named sparoom Flanders1.jpg
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Emily from SWISCO responded:
July 8, 2021

Hi there!

It's a bit tough to tell since your roller is damaged but it seems to resemble our 81-139 or 81-292. However, I can't promise that this is what you have. Do you have an undamaged version of this roller that you could show us? 
Sliding Door Roller, International
Sliding Door Roller, International
81-139
$5.95
Patio Sliding Glass Door Roller, 1-1/4" Dia.
Patio Sliding Glass Door Roller, 1-1/4" Dia.
81-292
$12.53
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