Overhead Garage Door Springs
Garage doors are heavy, which is why they need a powerful spring mechanism to open and close them. If your garage door weighs 150 lb, the springs are required to generate a force strong enough to overcome that 150 lb to raise the door. Lesser, but adequate forces are in play when the springs slowly lower the door to the ground. If you have a double overhead garage door, then the weight and the power/torque involved rises exponentially.
To put it another way, the springs that help your overhead door function are powerful metal coils under constant, intense tension and have the potential to be very dangerous indeed. Generally speaking, there are two kinds of overhead door springs– torsion, and extension springs.
Torsion springs provide the twisting force, known as torque(IPPT). This force is transmitted via a shaft to cable drums on both sides of the garage door. When it reaches the drums the force is converted from a rotational to a linear force, where it creates tension in the cables. It is this tension that makes it possible for just about anyone to lift a heavy garage door up and over their head, with a minimal of effort.
The spring, or springs, shaft, and drums working together form an assembly referred to as a counterbalance. It is the job of this counterbalance to counteract the force of gravity pulling on your garage door. As the door is pushed up, the torsion springs begin to unwind, and are fully unwound when the door is completely open. The rational behind it is the torque required to close the door is far less than the torque required to open it: when the door is lowered the springs rewind to their maximum tension.
A torsion spring system can raise garage doors up to about two pounds in weight, making it suitable for single or double doors. The lifespan of A standard torsion springs(10k Cycles)is between three and seven years, depending on how often the door is operated.
This type of garage door spring is mounted on either side of the door. They do the same job as torsion springs but instead of a shaft they operate via a system of pulleys. When the garage door is closed, the extension springs are stretched, i.e. extended, and are put under a lot of tension. This tension makes it easier to raise the door. When the door is open, the extension springs close up and the coils become tight.
Extension springs are generally not as robust as torsion springs, so they won’t last as long. They’re also not as powerful and are only really suitable for doors of around seventy-five kilograms or less. This means they can only be installed on single garage doors. In addition they when they break they are very dangerous and must have a safety device linking the two ends of the spring.
Spring Replacement and Maintenance
The springs on your overhead garage door will need to be replaced from time to time, but regular maintenance will prolong the inevitable. Try and keep your springs clean of dust and dirt, and apply lubrication every few weeks. Alternatively, you can sign up for our regular garage door maintenance schedule, and we’ll take care of the springs and all the other components on your door too.
Don’t try to replace garage door torsion springs yourself. Due to the enormous forces we’ve already mentioned, this can be a dangerous job. Our technicians at Titan are specially trained to handle springs the right way. So why risk causing damage or injury?
Titan Garage Doors, Winnipeg, Can Help
Titan has the experience and the equipment to do the job right, the first time. Call us for a no-obligation quotation today.
You have nothing to lose. Our same day service is renowned across the province. We also offer a 24/7 emergency service. You never know when your garage doors will give up, so keep our number handy.
Call us today on 204-400-2127 should you wish to speak with one of our experts.