Caldwell Bottom Roller
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A replacement bottom roller to repair existing bifold installations Bifold door rollers are used at the bottom of folding door installations wherever two hinged panels are sitting directly onto the track. Each roller assembly works with a top guide to support the moving door and to ensure that the door stays in the track.
| Type | Bottom Roller Hinge |
|---|---|
| Colour | 28862, White |
| overall-height | 31519 |
| Hinge Height | 98mm |
| Hinge Width When Open | 52mm |
| Diameter of Knuckle | 12mm |
| Hinge Screw Centres | 36mm |
| Fixing Holes | 7 |
| Countersunk Fixing Holes | 5 |
| Top to Bottom Fixing Hole | 85mm |
| Top to Middle Fixing Hole | 42.5mm |
| Middle to Bottom Fixing Hole | 42.5mm |
| 2nd to 4th Fixing Hole | 57mm |
| 3rd to 5th Fixing Hole | 28mm |
| Roller Height | 14mm |
| Roller Diameter | 14.8mm |
| Roller Centres | 45.5mm |
















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