Mirror door bottom roller, convex
A handy person from Palmdale, Ca says:
September 28, 2012
Dave from SWISCO responded:
October 1, 2012
Thank you for posting. To remove the broken bottom frames you will likely have to remove the entire mirror closet door. As for roller installation, the housing has tabs on the sides that can be bent and hooked into the mirror door frame. There are also sometimes screws that are used to secure it.