I need at least 4 mirror wardrobe door rollers.
My roller housing assembly looks very much like your
23-086 and
23-070 but the wheel is only 1 1/8 inches in diameter and not the 1 1/2 inch diameter as in the above models. It also has a recessed groove (I think you refer to this as a concave roller) as in the above model numbers.
The retractable sleeve with the riveted roller is 1 1/2 inch wide and 2 3/8 inches high and 1/2 inches deep. The width of the holes on the flanges is 2 1/2 inches center to center. The housing holding the sleeve has 3/4 inch flanges on each side making the entire width of the housing 2 and 15/16 inches