Gardner Spring V37C Extension Spring 33.94 Lb 0.73in Od

Product Description

The GARDNER SPRING V37C is a galvanized steel extension spring designed for industrial and mechanical applications requiring controlled tensile force. With an outside diameter of 0.73 inches and a wire diameter of 0.0915 inches, this spring delivers a spring rate of 4.49 pounds per inch and supports a maximum work load of 33.94 pounds. The free length is 8 inches, and the maximum extended length is 12.39 inches. Initial tension measures 9.8 pounds. Licensed technicians and maintenance professionals working on mechanical assemblies, door hardware, HVAC linkages, and similar tension-driven systems will find this spring a direct-fit replacement for like-spec components. The zinc-plated galvanized finish provides corrosion resistance in moderate-exposure environments.

This extension spring suits residential and light commercial applications where consistent tensile return force is required. Typical installations include door and panel return mechanisms, equipment access covers, linkage assemblies, and spring-loaded actuator hardware. The package includes 3 pieces, making it practical for service calls requiring spare units or for installations with multiple attachment points. The V37C is appropriate for mechanical contractors, HVAC installers, and general maintenance professionals working with spring-loaded mechanical systems.

Key Features

• Spring rate of 4.49 lb/in for predictable, linear tensile force
• Maximum work load of 33.94 pounds for moderate-duty tension applications
• Free length of 8 inches with maximum extended length of 12.39 inches
• 0.73 inch outside diameter with 0.0915 inch wire diameter
• Galvanized zinc-plated steel finish for corrosion resistance
• Sold in a 3-piece package to support multi-point or backup installations

Compatibility

Designed as a direct-replacement extension spring for mechanical assemblies requiring a 0.73 inch OD, 8 inch free length, 4.49 lb/in spring rate, and up to 33.94 pounds maximum load capacity.

Installation Notes

Installation should be performed by a qualified mechanic or trade professional familiar with spring-loaded tensile systems. De-energize or relieve all mechanical load from the assembly before removing or installing the spring to prevent snap-back injury. Verify hook orientation, attachment-point clearance, and extended-length travel against the mounting application before installing. Do not stretch the spring beyond its rated maximum extended length of 12.39 inches.