Garage Door Torsion Springs

Garage door torsion springs are installed right above the door. Their lifting power plays vital role to the proper movement of the door and that's why they are chosen in relation to the door's weight. Torsion springs are selected by their length, inside diameter (between the coils), end parts, spring wind, and wire diameter. Although only one torsion spring is usually installed in most residential garage doors, in some cases there is need for a second one. In this case, one must give special importance to the end parts of the spring. The coils of garage door torsion springs are designed to turn on the left or on the right and must be chosen accordingly.

Garage Door Replacement, Adjustment, Maintenance and Repairs

The lifting power of torsion springs is derived from the force of the coils and the tension produced as the spring creates torque. Torsion springs have different end parts. They have a stationary cone at one part and a winding cone at the other part. In addition, they remain stationary at one side as they move from the other side. Moreover, a shaft goes through the spring which also turns as the spring creates torque. This movement is passed to the cable drum. Torque keeps cables tight as they hold the door and lift it up as the spring keeps unwinding. Thanks to the torque developed garage doors open but also stay open. Torsion springs lose some torque in every cycle and that's why they require adjustments. Furthermore, they retain power almost equivalent with the weight of the door.

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