Looking for replacement sliders

A handy person from Arizona says:
These rollers were broken--broken rim of plastic around outside and what looks like broken clips on the ends. No identifying marks on the windows. The opening for the roller assembly is 1.375" X 0.450". Rollers are 0.530" in diameter. The windows are large and heavy. I would actually like to find a replacement that would fit the opening but have a larger flange that could be screwed or otherwise mounted to the windows in order to be more robust supporting the heavy windows. I believe there is enough play in the window to have a slightly raised rolling mechanism.
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Casey from SWISCO responded:

Thank you for your post. We came up with a few options on a replacement. Have a look at our 87-059, 87-190, and 87-221 roller assembly. Review the measurements of each piece and see if one of these could work for you. 

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