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+Garage Door Repair Dade City Florida FREE SERVICE CALL 855-295-3278 or 352-390-0559. http://asapgaragedoors.net/
A typical overhead garage door consists of several panels hinged together that roll along a system of tracks guided by rollers. The weight of the door is balanced by either a torsion spring system or a pair of extension springs
Sectional garage doors
Sectional doors are usually constructed of six to eight panels and slide up and overhead. Sectional doors occupy exactly the same amount of internal garage space as a monolithic door. Sectional doors have two distinct advantages over single panel monolithic doors: – Sectional doors do not require any space outside the garage to open. A vehicle may park very close to the garage before opening the door. – Each panel of a sectional door has its own connection to the door track. This increases reliability and robustness compared to monolithic doors which have only a couple of track connections for the whole panel.
Insulation of Sectional Garage Door
Garage doors can be made out of many materials, but steel, aluminum, wood, cooper, glass and vinyl (polyethylene) are the most popular materials. A few manufacturers are making garage doors by putting foamed-in-place polyurethane insulation in monolithic panel and sectional garage doors.
Torsion spring lift mechanism
A torsion spring counterbalance system consists of one or two tightly wound up springs on a steel shaft with cable drums at both ends. The entire apparatus mounts on the header wall above the garage door and has three supports: a center bearing plate with a steel or nylon bearing and two end bearing plates at both ends. The springs themselves consist of the steel wire with a stationary cone at one end and a winding cone at the other end. The stationary cone is attached to the center bearing plate. The winding cone consists of holes every 90 degrees for winding the springs and two set screws to secure the springs to the shaft. Steel counterbalance cables run from the roller brackets at the bottom corners of the door to a notch in the cable drums. When the door is raised, the springs unwind and the stored tension lifts the door by turning the shaft, thus turning the cable drums, wrapping the cables around the grooves on the cable drums. When the door is lowered, the cables unwrap from the drums and the springs are rewound to full tension.
Other factors like poor garage door maintenance, loose tracks, or components will shorten the life of torsion springs. Owners are advised to avoid applying grease to the garage door tracks, this will prevent the wheels on the rollers from doing their job. Only the bearings, hinges, and spring wire require lubricant.
New Smyrna Beach
St. Augustine Beach
Free Service Call with purchase of parts, labor, or other monetary services. Service Call waived with work performed.