SSC .2730" × 1.75" ID × 45.00" Torsion Spring – LW – Orange

🇺🇸 Made in USA

Replace a matching left-wound garage door spring with this SSC torsion spring. It combines .2730" wire, a 1.75" inside diameter, and a 45.00" relaxed spring-body length, with winding and stationary cones already installed.

Manufactured from coated, oil-tempered wire, this spring works within a correctly sized counterbalance assembly to offset door weight. Proper selection supports controlled movement throughout the opening and closing cycle and helps the opener operate a balanced door.

Specifications

Construction & Package Contents

The oil-tempered wire provides the spring material for repeated torque loading. The coating helps protect its surface while remaining subject to environmental exposure and normal maintenance requirements.

The winding and stationary cones are installed. Cone installation does not remove the need to verify shaft fit and anchor compatibility or make spring replacement a homeowner task.

This listing includes one left-wound spring with cones. An opposite-wind spring, shaft, cable drums, cables, bearings, brackets, and winding tools are separate items.

Common Uses

For professional replacement of a matching spring on a sectional garage door or use in a professionally calculated spring combination.

The spring should not be selected from door width, opener horsepower, or color alone. Actual door weight, travel height, cable drum geometry, and the full spring arrangement determine the required counterbalance.

Compatibility: Dimensions & Available Space

Match .2730" wire diameter, 1.75" inside diameter, 45.00" relaxed body length, and left-hand wind before ordering.

The 45.00" measurement covers only the relaxed coil body. Both cones and the installed operating arrangement require additional space. Have a technician confirm sufficient room on the shaft and clearance from nearby hardware.

This spring is not an automatic replacement for a shorter .2730" × 1.75" spring or a .2730" spring with a 2.00" ID. Changes to length or inside diameter affect spring performance and require a professional calculation.

A measurement taken from a spring under installed winding tension may not represent its original relaxed length. Have dimensions confirmed safely rather than attempting to release tension yourself.

The spring’s inside diameter is not the shaft diameter. Verify cone bore, shaft fit, and stationary mounting separately.

Orange Wire Code & Left-Hand Wind

Orange is the wire-size identification color. LW identifies the direction of the spring coil. Neither marking establishes installation side or a universal lifting capacity.

Confirm the actual wire diameter and required wind from the system specification. Do not rely solely on paint color or the old spring’s position, especially where the installation has been modified.

Pairing, Drums & System Changes

For a two-spring door, have both springs inspected and their specifications confirmed. Springs with similar age and usage may warrant replacement together, but the correct pair must meet the door’s combined counterbalance requirements.

The engineered combination may use matching or different dimensions. Added insulation, overlays, replacement sections, different drums, or changes in lift configuration can require new calculations. High-lift and vertical-lift systems need application-specific sizing.

Cycle Rating & Maintenance

The standard minimum rating is 10,000 cycles in a correctly selected application. One cycle equals one complete opening and closing. Actual lifespan depends on usage, environment, maintenance, and operating conditions.

Follow the door manufacturer’s inspection and lubrication recommendations. Arrange service if the door becomes heavy, moves unevenly, or develops unusual noise. Do not increase opener force to mask poor balance.

Installation & Safety

For qualified professional installation only. Torsion springs and loaded cable systems can release dangerous energy. Never loosen loaded cones, drums, anchors, or bottom cable brackets, and never use improvised winding tools.

Keep a door with a broken spring out of operation. The completed repair should include inspection of supporting hardware, door-balance verification, cable checks, and testing of opener safety functions.

Choose this SSC left-wound spring after confirming the exact 45.00" body length, .2730" wire, 1.75" ID, and complete application requirements.