Gardner Spring 37018GS Extension Spring 1/8 in Od

Product Description

The GARDNER SPRING 37018GS is a small-diameter extension spring designed for light-duty tension applications across a range of mechanical and industrial assemblies. Built with a 0.016-inch wire diameter and a 0.125-inch outside diameter, this spring delivers a spring rate of 1.3 lb/in and handles a maximum work load of 1.39 pounds. The overall free length is 1.0 inch, and it extends to a maximum of 1.91 inches under load. Each package contains 3 pieces, making it practical for service stock, prototype builds, or small repair jobs. Licensed technicians and maintenance professionals working with precision mechanisms will find this spring sized for accurate fitment in confined spaces.

This extension spring is suited for residential and commercial mechanical assemblies where consistent return force and compact dimensions are required. Common applications include HVAC equipment linkages, control panel mechanisms, appliance components, and light industrial hardware. Its small OD and low wire diameter make it a practical choice anywhere a fine-pitch, low-load extension spring is called for. Installers sourcing replacement springs for similar free-length and load requirements will find the published specs sufficient for direct comparison against existing components.

Key Features

• 0.125-inch outside diameter for compact, space-constrained installations
• Spring rate of 1.3 lb/in provides consistent, predictable extension force
• Maximum extended length of 1.91 inches with a 1.0-inch free length
• 0.016-inch wire diameter for fine-pitch, light-load tension applications
• Maximum work load of 1.39 pounds keeps stress within safe operating range
• Sold in a 3-piece package, convenient for service stock and repair inventory

Compatibility

Designed as an OEM-style replacement extension spring for light-duty mechanical assemblies requiring a 1/8-inch OD, 1.0-inch free length, and 1.3 lb/in spring rate.

Installation Notes

Extension springs should be installed by qualified technicians familiar with spring-loaded mechanism service. Always de-energize or fully relieve tension from the host assembly before removing or installing springs. Avoid overstretching beyond the published maximum extended length of 1.91 inches, as exceeding this limit can permanently deform the spring and reduce load capacity. Verify that hook orientation and inside hook dimensions are compatible with the mounting points in the host assembly before final installation.