Aluminum sliding glass door roller mechanisms

A handy person from Crossville, TN 38555 says:
The roller is 1 1/4", the markings on it were just the numbers 123. There were no other markings on it.
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Emily from SWISCO responded:

Hello!

Start by having a look at our 81-032B and compare our dimensions with yours to see if this matches what you need.

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