- Published: Tuesday, 24 November 2015 04:49
- Written by Big Mike Parks
It’s a common belief that garage doors are raised and lowered by the motor. The reality however is that the motor actually bears only a small part of the burden when it comes to lifting a modern overhead garage door. The majority of the work is done by the spring or springs. The springs on a garage door store enormous amounts of energy that they release to lift the door. When the door is on the way down energy is returned to the spring, and when the door is fully closed the spring is fully ‘charged’ once again.
The Types and Importance of Garage Door Springs
There are two kinds of springs at work in garage doors today: torsion springs and extension springs. Let’s take a quick look at each and how they work.