1940's drawer rollers

These are the rollers on some 1940's scratch-made cabinets in my house. I have replicated the style of construction in some new cabinets. I am trying to find this type of roller to complete the project. there are 7 new drawers. each would require one of the center rollers mounted to the drawer itself, and 2 of the rollers that mount to the cabinet opening for each drawer. I.E., 7 "L" bracket center rollers with the side guides and 14 flat bracket cabinet frame rollers. The rollers themselves are 3/4" in width.

Exact replacements are not needed, just some that work the same way if available.

Thanks

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Sorry, dure to the way the originals were constructed, that would require that would require tearing the whole cabinet apart. I'll keep looking for some sort of small rubber rollers.