Rollers
OVERVIEW
Door rollers run vertically on the door track, supporting the load from the bottom half of the bifold door. At Diamond Doors, we use industrial grade bearings to provide smooth operation as the door opens and closes. However, our roller design is not just a simple bearing.
We use a double sealed bearings to extend the life of the door rollers. These bearings are pressed into a stainless steel beveled sleeve. This sleeve acts as a cushion to protect the bearing from damage due to bumps along the roller track, while the beveled edges protect the roller track from the sharp edges of the bearing itself. The result is a bifold door roller with superior longevity, no maintenance, and smooth operation.
Diamond Doors offers two roller style – the cantilever roller and inset roller. The roller type is chosen based on the door application and size of the door.
The cantilever roller is our standard roller style for doors less than 60’ wide. It provides easier installation, reliable operation, and an improved door seal. In comparison, our inset roller design offers better load transfer into the door frame and is more effective for larger doors and loads.
TECHNICAL SPECS
| Roller Comparison | Cantilever | Inset |
| J-Track (Wind Protection) | Yes | Yes |
| Nylon Wear Disk | Yes | No |
| Trim Sheeting During Install | No | Yes |
| Access Hatch in J-track | Yes | No |
| Bottom Roller Wedge | Yes | Yes |





