My Scheirich system is circa 1980 and uses triangular metallic glide assemblies with nylon rollers at the cabinet entry point. These rollers fit into the side glider channels on the drawers. I need to replace one of these triangular glides because the nylon roller is broken (it is riveted into the metal bracket).

Anyone know where to access these triangular glides -- they seem to be unique to Scheirich. Does anyone make them or retail them?