Searching for SWH-448

A quick learner says:
Can't find a replacement for these old window rollers. They're 9/16" stainless wheels. None of the ones commonly available fit because its square hole (not a channel) and the screw is above the wheel, not on the side.
Thumbnail of the uploaded file named 2021-07-25 19_52_23-Window.png
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Casey from SWISCO responded:

Hello,

Your roller looks like a dead ringer for our 87-186. Take a look and see how the dimensions compare to yours. Thanks for posting! 

A handy person says:
That's the one! Thanks!
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