While an extension spring extends to perform its function torsion springs use torque to perform its function.
Garage door springs curtain type.
Garage springs are under an extreme amount of tension and either stretch or torque providing enough force to help you move the door.
They extend when the door is lowered and closed and retract as it opens.
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2 types of garage door springs extension springs.
There are two at either side of the door to.
In order to open the door these springs extend providing counterbalancing force to support the door.
Sectional garage door extension springs are the more common type of extension springs installed here in the united states.
They counterbalance the garage door by pulling on the cables.
The most common garage door springs are called a torsion spring.
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Garage door springs act as a counterbalance to the weight of all garage doors making them easier to open and close.
A garage door generally has two extension springs one on each side of the door and runs parallel to the track.
These springs are sturdy and generally last longer than other kinds.
The more force that is applied via hand or motor the more the extension spring expands.
Torque is a twisting force that causes rotation.
As you can tell by the name extension springs extend and stretch.