Cox sliding closet door rollers

A home owner from Redondo Beach says:
I have 2 sliding doors, made in 1955, which have wheels made by "Cox & Sons", Pasadena, CA. The 1" DIA wheels have NO ball-bearings and are badly worn-out, see 2 pix for dimensions. The spades are 1" wide. What are the right replacements WITH ball-bearings you can offer and at what cost, incl shipment
Closet roller
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Tom from SWISCO responded:
Thanks for posting. You might be able to get our 23-056 and 23-067 to work if you replace the front and rear together. The rear roller has a 3/4" backset while the front has a 1/4" off set, to make up that 1" you originally had. We also have the 23-186 , but I'm afraid we haven't been able to find anything closer.
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