sliding glass door roller and assembly

A handy person from South Carolina says:
February 13, 2021
original manufacture is "Del Mar" this is about 40 years old.
length of unit is 2 and 5/8
single wheel
height of unit is 1 and 1/2
wheel size appear to be about 1 and 3/8
Thumbnail of the uploaded file named sliding glass door assembly.jpg
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Bob from SWISCO responded:
February 16, 2021

This reminds me of our 81-112 Roller. Double-check your dimensions and see if this matches up. 
Peachtree Patio Door Roller Assembly
Peachtree Patio Door Roller Assembly
81-112
$6.59
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