Sliding glass door roller

A quick learner from Memphis, TN says:
Part number Delta 1176 roller from a Champion sun room sliding glass door. I assume the sun room and door rollerS are approximately 20 years old. Roller is 13/16 wide and approximately 2 3/4 inch long. I Could not find any parts that cross referenced the part number. Any help would be appreciated. I have additional photographs if needed.
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Tom from SWISCO responded:

This roller appears to be a match for our 81-126. Look it over and let me know if you agree.

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