Single steel wheel roller

Question

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 !

Jasmine · Accepted Answer

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