Garage door rollers are the small wheels that ride in the track and let the door glide up and down. They come in steel, nylon and plastic, and most fail gradually, so a worn roller usually gets loud before it breaks.
Roller types
| Material | Notes |
|---|---|
| Steel | Strongest, handles heavier doors, the noisiest of the three |
| Nylon | Quiet running with good durability, a common upgrade from steel |
| Plastic | Lightest duty, standard on some lightweight new doors, wears fastest |
Residential rollers commonly fit nominal 2 inch track; heavier commercial doors may use 3 inch track. Actual wheel diameter is smaller than the nominal size. Match the stem length, load rating and door model as well.
Signs a roller has failed
- A grinding, rattling or popping noise at the same point in every cycle.
- The door hesitates, jerks or slows down partway through its travel.
- A roller looks cracked, flat on one side, or is missing its bearing.
- A section rides out of the track at one corner.
What a homeowner can safely replace
Have a technician replace rollers. Removing a hinge or bending track to release a roller can leave a heavy door unsupported. Bottom rollers sit in brackets connected to the lift cables; never loosen these brackets. You can inspect rollers from the floor for cracks, a tilted stem or a wheel outside the track, without moving the door.
Keeping rollers quiet
Keep the tracks clean and dry. Lubricate only the roller bearings or stems the door manufacturer specifies; nylon wheel surfaces and sealed bearings generally do not need spray. Replace worn rollers based on condition and their rated load and cycles, rather than a fixed number of years.
What it costs
Roller replacement cost depends on the specified diameter, stem length, bearing and cycle rating, quantity and labor. The door condition can add track or hinge work. Repair and service visits carry a $45 diagnostic trip fee, and you approve the price before work starts.
If a roller has failed at the bottom of the track, or the door has come off track, that is not a DIY fix. Call (916) 838-8182, see off-track repair, or book a tune-up to have every roller and hinge checked at once. Some people search for these parts as garage door wheels.
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