single wheel sliding door rollers

A handy person from bakersfild,ca says:
I Hope you have it. I drilled a couple holes in it to try to modify it. It did not work.LOL THANKS
User submitted pictures of sliding door rollers.
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Paul from SWISCO responded:
Thanks for posting. Please take a look at our 81-258 sliding door roller. Do you think this is closer to what you need? Please let me know.
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