Help identifying my sliding glass door roller asembly

A home owner from New ORleans says:
This is the roller assembly for my sliding glass door. I looked all over Home Depot for the replacement and cannot find it. It is fairly large.
A customer submitted photo of a sliding glass door roller assembly.
Profile picture of Paul
Paul from SWISCO responded:
Thanks for posting!

Possibly either our 81-051 or 81-052 sliding door roller. Can you please give us your sample's dimensions in inches so that we can help you confirm the correct roller?
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