Roller assembly patio sliding glass doors

A quick learner says:
January 31, 2021
Older patio sliding glass door roller assembly. Brand unknown, threshold is 8 feet,
Pictures were removed from one of the doors.

Pictured roller assembly is in relation to a
dewalt tape measure.

Steel wheel, diameter 1 3/8 " x 5/16 thick
Length 1 5/8"
Height 1 9/16"
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Bob from SWISCO responded:
February 2, 2021

I believe this might be our 81-006, which is very similar; just double-check those dimensions to see if it matches up. 
Keller Door Roller Assembly
Keller Door Roller Assembly
81-006
$6.91
Sliding Door Roller Assembly, 1-1/2" Dia.
Sliding Door Roller Assembly, 1-1/2" Dia.
81-288
$9.70
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