SSC .2950" × 1.75" ID × 50.00" Torsion Spring – LW – White
SSC .2950" × 1.75" ID × 50.00" Torsion Spring – LW – White
🇺🇸 Made in USA
This SSC left-wound torsion spring is intended for sectional garage door counterbalance systems requiring .2950" wire, a 1.75" inside diameter, and a 50.00" relaxed spring-body length. It is manufactured from coated, oil-tempered wire and supplied with winding and stationary cones installed.
The spring must be selected for the complete door application. Its wire size and length do not, by themselves, establish a lifting capacity or make it a suitable upgrade for another spring. Correct sizing is necessary for proper balance throughout the door’s travel.
Specifications
| Specification | Details |
|---|---|
| Manufacturer | SSC — Service Spring Corporation |
| Spring type | Garage door torsion spring |
| Wire diameter | .2950" |
| Inside diameter | 1.75" |
| Relaxed spring-body length | 50.00", excluding cones |
| Wind direction | Left wound — LW |
| Wire-size color code | White |
| Wire construction | Oil-tempered spring wire |
| Finish | Protective coating |
| Installed fittings | Winding cone and stationary cone |
| Standard cycle rating | Minimum 10,000 cycles in a correctly selected application |
| Country of manufacture | United States |
| Package quantity | One torsion spring with installed cones |
Construction & Package Contents
The oil-tempered wire is designed for repeated torsional loading during garage door operation. Its coating helps protect the wire surface, while inspection and maintenance remain necessary for the operating environment.
The winding and stationary cones are installed. A technician must verify their fit with the shaft and anchor arrangement before installation.
This listing includes one spring with cones. A companion spring, shaft, cable drums, cables, bearings, brackets, and installation tools are separate components.
Common Uses
For professional replacement of a matching left-wound spring or use in a professionally calculated counterbalance assembly on a sectional garage door.
Actual door weight, travel height, drum geometry, and the complete spring arrangement determine suitability. Do not select this spring solely because it appears larger or stronger than the existing spring.
Compatibility: Wire Size, ID & Clearance
Verify .2950" wire diameter, 1.75" inside diameter, 50.00" relaxed body length, and left-hand wind.
The 50.00" measurement covers the relaxed coil body only. Both cones and the installed operating arrangement require additional space. Have a technician confirm adequate room on the shaft and clearance from nearby hardware.
The 1.75" ID refers to the spring coils, not the torsion shaft. Check cone bore, shaft fit, stationary mounting, and the available assembly layout separately.
A different inside diameter or body length changes spring performance. Any substitution requires a counterbalance calculation. Measurements from an installed spring under winding tension may also differ from its original relaxed dimensions.
White Color Code: Confirm the Actual Wire Diameter
White is the wire-size identification color for this listing, but color codes repeat across wire sizes. This .2950" spring must not be confused with a white-coded .2187" spring.
Confirm the wire by measurement and the product specification. LW identifies the coil direction; the color marking does not establish installation side or door-weight capacity.
Pairing, Drums & Lift Configuration
On a two-spring door, have both springs evaluated and verify the complete replacement combination. Springs with similar age and usage may warrant replacement together, but the engineered pair can use matching or different dimensions.
Different drums, added door weight, replacement sections, or lift conversions can change the required spring selection. High-lift and vertical-lift applications require calculations based on their actual drum and travel geometry.
Cycle Rating & Ongoing Care
The standard minimum rating is 10,000 cycles in a correctly selected application. One cycle is one full opening and closing. Actual service life depends on loading, usage frequency, environment, and maintenance.
Follow the door manufacturer’s inspection and lubrication recommendations. Seek service if the door becomes difficult to move, operates unevenly, or develops unusual noise. Do not adjust opener force to mask a counterbalance problem.
Installation & Safety
Professional installation is required. Never loosen loaded cones, drums, anchors, or bottom cable brackets. Improvised tools or uncontrolled tension release can cause severe injury.
Keep a door with a broken spring out of operation. A qualified technician should complete the repair with supporting-hardware inspection, balance testing, cable checks, and verification of opener safety functions.
Choose this SSC left-wound spring after confirming the .2950" wire, 1.75" ID, 50.00" relaxed length, and complete application requirements.
Details
Need Help With Compatibility?
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