Rollers for an 8' sliding glass door

A quick learner says:
Roller has 3/16" adjustment
User submitted a photo of a door roller.
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
This roller has a very unusual looking housing. Is there more to it? Perhaps another part that this fits into? In the meantime, you could look at our 81-084 and 81-088 to get started. Could either of these work for you?
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