Searching for MACOR WINDOW

A quick learner says:
I need to identify the rollers for this Macor window. Can you help?
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Lauren from SWISCO responded:

Hello, thank you for posting,

To further review, we will need to see the roller assembly removed from the frame to see the full housing. From there we can compare to our selection to determine if we can offer a suitable replacement option. Thank you! 

A professional from Chicago area says:
Here are a couple photos of the rollers I need.
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Lauren from SWISCO responded:

Thank you for the additional pictures,

The closest we carry to your original style is the 87-175, but I cannot guarantee a direct fit. Please review the overall style and dimensions to see how they compare to your original. Let us know what you think and if you have any additional questions. 

Underside view of 87-175
Underside view of 87-175

Profile view of 87-175
Profile view of 87-175

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