Single steel wheel roller

A home owner from New York says:
Good morning
Help!!!?
Trying to find replacement for single steel wheel roller, only identifier on the wheel is Del Mar Eng
Long Beach, Cal
Pat 3,670,357
We measured 21/2 long , 1&3/4 tall, 1 inch wheel
I am trying to find replacement for all 7 sliders , 2 wheels each door,
This was my uncles house built in 1967 in the woods and the doors are still functioning but the doors are getting stuck, thank you so much!
I have help from local glass and door guy to put them in !
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Profile picture of Jasmine
Jasmine from SWISCO responded:

Thanks for posting! Your roller closely resembles our 81-093, concave roller. To confirm that this is the correct replacement, carefully review the dimensions from the diagram below and compare them to your roller. See if these might be a fit.

Alternate image for 81-093
Alternate image for 81-093

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