Paul from SWISCO responded:
March 9, 2018
We offer two size nylon ball bearing roller assemblies for you to review: our 23-043 with a 1-1/4" diameter and 23-198 with a 1-1/2". Being that your current wheel is 1-1/8", and you are unable to adjust the door slide easily, the 1-1/4" wheel may not be enough. You may want to move up to 1-1/2". The nylon ball bearing wheels should be fine for your heavy mirror doors. We have known many mirror door companies favor the nylon wheels for a quieter, smoother ride.
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