Gardner Spring 36278G Precision Compression Spring

Product Description

The GARDNER SPRING 36278G is a precision compression spring manufactured from music wire (AISI 302 / ASTM A228 / ASTM A313) with a plain silver finish. It features an outside diameter of 0.18 inches, a free length of 0.5 inches, a wire diameter of 0.032 inches, and a spring rate of 65 pounds per inch. The closed and ground end type delivers consistent seating and load distribution. With a maximum work load of 12 pounds (55.60 newtons) and a solid height of 0.305 inches, this spring is suited for precision mechanical assemblies where tight dimensional tolerances and repeatable force characteristics are required. Mechanical engineers, maintenance technicians, and OEM assembly operations are the typical end users.

This compression spring is used in compact mechanical devices, instrumentation, valves, switches, and light-duty actuator assemblies where a small-diameter, short-length spring with a defined spring rate is needed. Its music wire construction and plain finish make it appropriate for dry or lightly lubricated indoor applications. The 0.188-inch hole diameter specification supports accurate bore-guided installations in precision subassemblies.

Key Features

• Outside diameter of 0.18 inches for compact, tight-clearance installations
• Spring rate of 65 pounds per inch for predictable, linear load response
• Maximum work load of 12 pounds (55.60 newtons)
• Closed and ground ends for flat, stable seating on both contact surfaces
• Music wire construction meets AISI 302, ASTM A228, and ASTM A313 standards
• Solid height of 0.305 inches limits compression travel and prevents coil binding

Compatibility

Designed as an OEM-style precision compression spring suitable for mechanical assemblies requiring a 0.18-inch OD, 0.5-inch free length, closed and ground end spring with a 65 pound-per-inch spring rate.

Installation Notes

Installation is performed by mechanical technicians or maintenance personnel working on precision assemblies. Confirm bore diameter, pocket depth, and free length clearance before installation to ensure proper spring travel without binding. Avoid compressing the spring beyond its solid height of 0.305 inches during assembly or operation. Wear appropriate eye protection when handling compressed springs.