Need to ID Rollers for 50 yr old Sliding Glass Doors

A home owner from Sarasota Florida says:
November 29, 2018
These doors are about 45-50 years old. We have 4, 4' doors with 2 of these rollers on the bottom end of each door.
We couldn't find any markings on doors or the rollers.

The sliding screens on the outside, I ordered rollers for them, a couple months ago and installed, working great. The old rollers for the screens had Alcan on them, nothing on the screens doors themselves. the screens are the same age as the doors.
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Paul from SWISCO responded:
December 4, 2018

Unfortunately we don't have your roller assembly. The only thing I can offer is a replacement wheel. Consider our 81-228, which is 1-1/4" in diameter and has a 1/4" hole for the axle. Could you get this to work? Let me know if you have any questions. 
1-1/4"dia Nylon Concave BB Wheel
1-1/4"dia Nylon Concave BB Wheel
81-228
$1.44
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