Garage Door Torsion Spring Guide

garage door torsion springA garage door torsion spring is an essential piece of of garage door hardware. And like any mechanical device with moving parts, it will wear out and require replacement at some point in your garage door‘s lifespan. Typical overhead garage doors consist of rollers, tracks, hinges, panels, drums,  motor and a chain all held together by a garage door torsion spring made of steel. This vital component is one of the most prone to failure of your garage door parts and should be properly maintained and even replaced when its strength has been compromised.

Coil springs are only one piece of the entire unit that completes the garage door. Garage door parts will all require replacement at some point of course but none is more essential than this component.

How do Garage Door Torsion Springs Work?

Garage door coil springs serve to counterbalance the doors weight which makes it easier to slide up and down the guide rails. They are similar to and serve the same purpose of a counter weight used for door balancing for many years. Indeed, often doors are balanced this same way today. If a garage door weighs 150 pounds then a counter balance would need to be equal to that. A spring would require force of 150 pounds pull in opposition to the weight of the door. This can be done with springs that either torque or stretch to neautralize the pull of the door.

garage door torsion spring

It may seem like space age technology but it is really quite a simple machine. A garage door torsion spring is held in place by a metal shaft secured over top of the door. Typically, the spring is wrapped around the shaft though sometimes the spring is contained within the shaft.  If it is of the former type, then the spring can be held in place by the middle or ends of the shaft, connecting it to the outside edge of the garage door.

The garage doors are balances through the use of the springs by torquing the shaft at both ends. The drums at the ends of the shaft each have a cable that is affixed to the lower portion of the door. As the door is raised and lowered the tension is increased or decreased but remains balanced.

Three things affect the life of This particular piece of garage door hardware:

  1. Wire Gauge: he thicker the stronger and therefore affects lifespan.
  2. Length: Determines the limits of the up and down motion of the garage door but also affects the lifespan of the unit.
  3. Internal Diameter: Aids in the determination limit of contraction that the spring has.

Whether you have a standard or custom garage door, you need the right garage door replacement parts for the job. Informing yourself of what it each garage door part does and how they work together will allow you to properly maintain the unit.

Warning: Replacing garage door parts, particularly torsion springs, can be extremely hazardous since they are under a tremendous amount of tension. Releasing this tension without proper training, instruction or without the aid of a professional garage door replacement expert can potentially result in injury or even death. We at encourage you to seek the professional services provided by this site to aid you in your next garage door parts replacement project and make sure your products adhere to the standards sety forth by the US Government.

garage door torsion spring