Looking for replacement rollers

A home owner from Bermuda says:
I'm writing from Bermuda to enquire if you can assist me in identifying and in supplying me with a set of rollers for two different NuPrime sliding glass windows (that have seen much better days!). I would need 4 rollers for each window and I'm sending a photo of the bottom of each of the two windows.

My intention is to replace the windows but I have to make do with them if possible for a few months before making renovations.

Your assistance would be most appreciated
User submitted photos of patio door hardware.
Profile picture of Tom
Tom from SWISCO responded:
Good afternoon! Thanks for posting. Please take a look at our 87-065, Sliding Window Roller, and compare it to your own to see if this can work as a replacement.
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