SSC .2187 x 1.75″ ID x 27″ Torsion Spring – Left Wind – White

Manufactured by Service Spring Corporation (SSC), this .2187″ wire x 1.75″ inside diameter x 27″ left-wind torsion spring is a replacement component for a correctly matched sectional door counterbalance system.
🇺🇸 Made in USA

Supplied with winding and stationary cones installed, this spring uses coated, oil-tempered wire. Its dimensions and winding direction must match the existing engineered spring arrangement or a professionally calculated replacement.

Features & Benefits

• .2187″ wire diameter with white wire-size identification.

• 1.75″ inside diameter.

• 27″ unwound spring-body length, excluding cones.

• Left-wind configuration.

• Installed winding and stationary cones.

• Coated, oil-tempered wire.

• Stenciled and color-coded for identification.

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

One cycle consists of one complete opening and closing. Actual service life depends on correct sizing, operating turns, door balance, maintenance, and environmental conditions.

Specifications

Common Uses

For replacement of a matching spring on a compatible sectional overhead door. Appropriate applications are determined by the door’s weight, height, cable drums, track arrangement, and complete spring assembly.

Door width or opener horsepower alone cannot establish compatibility.

Compatibility & Selection

Verify wire diameter, inside diameter, unwound body length, and winding direction. Also confirm cone fit, shaft compatibility, stationary-cone mounting, and available shaft space.

The white marking identifies a wire-size category; it does not establish lifting capacity or winding direction. Different wire sizes can share a color designation, so physical measurements remain essential.

This 1.75″ ID spring is not automatically interchangeable with a 2″ ID spring of similar length.

Pairing & Replacement Notes

On a two-spring system, the companion spring must work with this spring to produce the required combined torque. Some doors use equal-size opposite-wind springs; others use intentionally unequal sizes.

If both springs are the same age, have the complete pair evaluated. Changing dimensions or choosing a higher-cycle alternative requires a calculated replacement with suitable torque output and sufficient shaft space.

High-lift, vertical-lift, or different cable drums require a separate compatibility calculation.

Installation & Safety

Torsion springs store enough energy to cause severe injury. Installation and adjustment should be performed by a trained garage door technician using correctly fitted winding bars and the door manufacturer’s procedures.

Do not loosen cones, cable drums, bottom brackets, or loaded spring hardware. After installation, the technician should verify door balance, cable tracking, clearances, and opener safety operation.

Confirm your measurements and order this SSC left-wind spring for a properly matched replacement. If you need help, send us your spring measurements and door-system details before purchasing.

SSC .2187 x 1.75″ ID x 27″ Left-Wind Torsion Spring – White
Shop an American-made SSC torsion spring with coated, oil-tempered wire and installed cones. Verify dimensions and winding direction before ordering.