Your garage door is the largest moving part in your home. It’s powered by a mechanism designed to lift a door that, on average, weighs somewhere in the neighborhood of 400 pounds. Garage door systems are a feat of engineering, considering that they’re able to smoothly cause a door to open and close smoothly and quietly.

To do this, a number of parts need to work in concert with one another. Like any other mechanical system, parts will eventually break or wear out over time. One of the most common parts that need to be replaced is the gear and sprocket. These parts are designed to connect the motor to the chain or belt.

As the years pass, the springs on the garage door will inevitably weaken, creating more and more stress on the bushing. As the bushing wears down on top of the unit, the teeth of the gear will slowly grind down as well. Once the teeth have become fully worn, it becomes impossible for the gear to effectively turn the drive gear that powers the belt or chain. The end result is a motor that runs, but the garage door won’t move up or down.

At Door Doctor, this repair is one that we’re very familiar with. We’ve been in business over 20 years, and with 30 years of industry experience, we’ve performed these kinds of fixes on virtually every brand and kind of garage door system on the market. If you’re in need of service or you simply have questions, contact us by phone or online today.