Sliding glass door rollers

A quick learner from California says:
September 4, 2022
Hi, looks like the only branding is "Product of Del Mar Eng. Co." " Long Beach ,Cal" pat 3 670 357 . The roller wheels are "flat" and an 1 inch round could be steel but seems to have some texture too them. I'm in need of two , if possible , any help would be much appreciated. Would have been great if the manufacturers would have put part numbers on these, would have made a lot of sense. Thanks for your help in advance .
Jim
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Emily from SWISCO responded:
September 7, 2022

Hi, Jim.

I'm afraid we don't have an exact match for the roller you show here. We have our 81-139 but this has a concave wheel. A 1" wheel for a patio glass door roller is very small, however. 1-1/4" is the smallest you see on this kind of door. It's possible your wheel was once 1-1/4" and concave but that the outer portion broke off of the center portion. This tends to happen sometimes. Take a look and see what you think. 
Sliding Door Roller, International
Sliding Door Roller, International
81-139
$5.95
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