Sliding glass doors wheels

A handy person from New York City says:
Hi I have a few glass doors inside that use this system. I tried to clean wheels on one set because they stopped rolling. Would prefer just to replace.
The tandem wheels unit is 41/4 inch and 11/4 inch depth. The wheel is about 1/4 inch wide
My wheels have all jammed up and will not turn. I tried to clean/ grease but to no avail.
Sliding glass door wheels
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Tom from SWISCO responded:
I would start by looking at our 81-030 roller. This may be a good place to start, though ultimately it will depend on your precise measurements. You can see our dimensions below.
Alternate image for 81-030
Alternate image for 81-030
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