Paul from SWISCO responded:
March 28, 2024
Thanks for reaching out to us. I'm afraid I haven't found any source for your old roller. Our 23-155 might be feasible as a substitute though we can't make any promises. The offset is 1/2" and the groove nylon wheel is 7/8" in diameter. The roller was used on the old Kenna Frame doors as well. Detail of 23-155
Alternate view of 23-155
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