Gardner Spring 735180135MR Torsion Spring 180 Degree

Product Description

The GARDNER SPRING 735180135MR is a right-hand wound torsion spring designed for mechanical assemblies that require controlled rotational force and angular deflection. Built from steel with a 0.135-inch wire diameter and a coil outside diameter of 1.189 inches, this spring delivers 42.86 inch-pounds of torque at its rated leg length. With 9 coils and a 180-degree deflection angle, it is suited for applications demanding consistent, repeatable torsional performance. Licensed trades and mechanical assembly technicians working on equipment with rotating or pivoting components will find this spring sized for direct integration into standard spring-loaded mechanisms.

This torsion spring is used in a range of industrial and mechanical applications where a right-hand wound steel torsion spring with a 180-degree deflection is required. The 0.735-inch rod and maximum tool size makes it compatible with standard mandrel tooling. A 4-inch leg length provides adequate moment arm for most typical mounting configurations. It is commonly installed in door hardware, cam-operated assemblies, hinges, clutch mechanisms, and similar equipment found in commercial and industrial settings.

Key Features

• 180-degree deflection angle for half-turn torsional applications
• Right-hand direction of wind for standard rotational loading
• 1.189-inch coil outside diameter suits common spring-bore housings
• 0.135-inch wire diameter provides 42.86 inch-pounds of torque at leg length
• 9 coils for predictable spring rate and deflection consistency
• Steel construction for durability in mechanical service environments

Compatibility

Designed as a direct-fit torsion spring replacement for mechanical assemblies requiring a right-hand wound steel spring with a 1.189-inch outside diameter, 0.135-inch wire diameter, 9 coils, and a 180-degree deflection angle.

Installation Notes

Torsion springs should be installed by qualified mechanical or maintenance technicians familiar with spring-loaded assemblies. Always relieve tension from the existing assembly and de-energize any connected mechanical or electrical components before removing a torsion spring. Use appropriately sized mandrel tooling matched to the 0.735-inch maximum tool size to avoid coil damage during installation. Do not over-deflect the spring beyond its rated 180-degree angle, as this can cause permanent deformation or failure.