Roller assembly

A home owner from Murrieta, CA says:
Thank you first of all for the help. I'm not sure who the maker of the sliding glass door is or who manufactured the part. I looked through a couple of books today and was unable to find a match. It's bigger than most stores carry.
User submitted photos of a patio door roller.
Profile picture of Casey
Casey from SWISCO responded:
Hi, This looks similar to our 81-156, Tandem Patio Glass Door Roller, compare the dimensions to see if it's a match.
Alternate image for 81-156
Alternate image for 81-156
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