Old ACME Pocket Door Roller

A home owner from Arizona says:
Hi. I am trying to locate a replacement pair of rollers for a pocket door I am working on. I see the name ACME on the mounting plate that goes on the top of the door, but other than that, I don't see any markings. I've attached some pictures. Please let me know if I can provide anything else to help find replacements. Thank you.
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Bob from SWISCO responded:

I am afraid we don't have an exact match for this pocket door roller. This hardware is very tricky to replace, as replacements must be exact in design. See our 23-250 or 23-251 track kits. See if you think either could work to replace your existing setup. 

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