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Bifold Door Roller Replacement These rollers can be used for bifold doors. They are made of stainless steel, and resist breaking and wear for a long time. These rollers are strong enough to support your doors' weight and are easy to install. This top nylon roller guide is designed for replacement in bi-fold door panels weighing up to 30 pounds. It can be used with aluminum profiles from System S1000. How do you recognize the broken bifold door roller Bifold doors are a great storage solution for clo