Replacement sliding screen door wheels with corner

A quick learner from Newtown, PA says:
I have an ancient sliding screen door I'm trying to repair. I'm in need of 4 corners like the attached pictures show. The wheels are 7/8" wide and the brackets are 3 1/2" x 3 1/2 ". I can't figure out what to buy and hope you can help. Thanks in advance for your help.
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Casey from SWISCO responded:


Your assembly reminds me of our 84-026 corner screen roller. Take a look and see how the dimensions on our product page compare to yours. Thanks for posting!

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