Window roller for Al extrusion window

A handy person from California says:
I have a bunch of windows circa 1989 that have metal rollers with shafts roughly 3/16th and 1/2" rollers. The ride on a sheet metal holder inside a plastic insert for the aluminum extrusion. I include pics of the parts and note that one side of the plastic mount has broken off.
user submitted images of window rollers
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Mike from SWISCO responded:
Good Morning,

Thank you posting and submitting your images. We are currently in the process of researching possible replacement aluminum extrusion rollers, and will post an update on the discussion board as soon as more information becomes available.
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Mike from SWISCO responded:
Take a look at the newly added window roller 87-186. This new roller looks to be exactly what you are looking for. Let me know if you have any questions.
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