SSC .283 x 2″ ID x 42″ Torsion Spring – Left Wind – Light Blue

🇺🇸 Made in USA

Manufactured by Service Spring Corporation (SSC), this .283″ wire x 2″ inside diameter x 42″ left-wind torsion spring is a replacement component for a correctly matched sectional door counterbalance system.

Supplied with winding and stationary cones installed, this spring uses coated, oil-tempered wire. Correct sizing is essential to provide the counterbalance torque needed for controlled door movement throughout its travel.

Features & Benefits

• .283″ wire diameter with light-blue wire-size identification.

• 2″ inside diameter.

• 42″ unwound spring-body length.

• Left-wind configuration.

• Winding and stationary cones installed.

• Coated, oil-tempered wire.

• Stenciled and color-coded for identification.

• Standard-cycle spring listed for a minimum 10,000-cycle application when properly selected.

One opening and closing equals one cycle. Actual lifespan depends on operating turns, loading, installation quality, maintenance, and corrosion exposure.

Specifications

Common Uses

For replacing a matching torsion spring on a compatible sectional overhead door. The correct application depends on actual door weight, door height, cable-drum specifications, track arrangement, and any companion spring.

A larger wire diameter does not make the spring a universal upgrade for a door with a smaller existing spring.

Compatibility & Selection

Match .283″ wire, 2″ inside diameter, 42″ unwound body length, and left-wind direction. Check cone fit, shaft compatibility, stationary mounting, and operating clearance.

The 2″ dimension identifies the spring’s inside diameter, not the torsion-shaft diameter. The 42″ length refers to the relaxed coil body without the cones.

Do not substitute a 1.75″ ID spring simply because its wire size matches. Different inside diameters and lengths change torque-per-turn characteristics and require a calculated compatibility check.

Pairing & Higher-Cycle Options

For a two-spring assembly, both springs must deliver the required combined output. Equal-size opposite-wind pairs are common, but some installations use different spring sizes by design.

Have both springs inspected when one fails, especially if they are the same age. A higher-cycle replacement requires an engineered alternative with appropriate output and sufficient shaft clearance.

High-lift or vertical-lift operation and changes to cable drums require a separate assessment of the counterbalance system.

Installation & Safety

Professional installation is strongly recommended. Torsion springs and connected hardware store dangerous mechanical energy.

Do not loosen loaded cones, cable drums, lifting cables, or bottom fixtures. A trained technician should follow the manufacturer’s procedures and verify balance throughout travel, cable seating, clearances, and opener safety reversal after replacement.

Order this SSC 42-inch left-wind spring after confirming the exact dimensions and system fit. Contact us before purchasing if you need help identifying the correct replacement.

SSC .283 x 2″ ID x 42″ Left-Wind Torsion Spring – Light Blue
Shop an American-made SSC torsion spring with installed cones and coated wire for a properly matched sectional door counterbalance assembly.