Dave Sr. from SWISCO responded:
January 13, 2016
I believe the closet closet door rollers we have are the 23-001 and 23-002. The wheels are the same diameter, but the off-set on the housings appear to be different than yours. You might need to replace the complete track with the 23-501 or another size kit. We do carry an extensive closest door hardware section which leads me to believe that your exact rollers might be no longer available.
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