Cant find bypass hardware to fit

A home owner from Mobile, al says:
September 30, 2011
Help.
I have been looking for parts to match these. i havent been able to make anything i have tried fit. please help me fiure out what i can make work. I need 6 more pieces to finish the closets in my house.
The roller is approx 7/8" diameter and has a concave wheel. the attached photos are taken on top of a sheet of engineering graph paper to show scale. The paper has 5 squares per inch.
thanks,
Bo M.
User submitted photo of closet door roller.
Profile picture of Mike
Mike from SWISCO responded:
October 4, 2011
Bo, have you taken a look at the 23-155 Closet Door Roller?
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