Everything You Wanted to Know About Automotive Extension Springs

Tensile or extension springs are coiled springs that resist tensile force or stretching. These springs are usually attached to the ends of two components to bring them together when they are pulled apart. The automobile industry utilizes these tensile springs in various applications. Let’s look how these springs contribute to the auto industry.

3 Reasons Why Extension Springs are Popular in the Automobile Industry

Why extension rings ? Read on to know more.

  • High Endurance: These springs are engineered using a variety of hard-wearing materials such as beryllium, brass, copper, vanadium, etc. This durable construction makes them perfect for automobile components, which are subjected to rigorous working conditions.
  • Anti-Corrosion: These springs derive their corrosion resistance properties from finishes applied on them. Some of these finishing materials include zinc, cadmium, and black oxide. Corrosion-resistant springs are an asset to any automobile assembly, since they have to endure tough environment conditions every day.
  • Affordable: Extension springs are manufactured using inexpensive and durable materials such as music wires, hard drawn steel wires, standard spring steel, etc. This makes them economical helping reduce the overall cost of automotive applications.

Extension Spring Hook/Loop Types Used in Automotive Applications

Extension springs feature hook or loop attached at both ends. Various automotive applications are making use of extension springs with following loop/hook end configurations.

  • Double twisted full-loop over center
  • Full loop side
  • Long round end hook over center
  • Hand loop and hook at right angles
  • Machine loop and machine hook shown in line

The selection of the hook end depends on the application where it is used.

Automobile Components That Make Use of Extension Springs

Some of the important automobile applications of extension springs include:

  • Clutch Dampers: Dampers utilize extending action of extension springs to slow response action of clutches when they are pushed or released.
  • Disc Clutches: Push and pull type of movement in disc clutches are due to extension springs.
  • Garage Door Assemblies: Extension springs help to ease movement of garage doors. They are used as alternatives for torsion springs.

These springs are used in automobile interiors and exteriors, carburetors, brakes, etc. In short, extension springs are used to bring together components that extend in actuated position. With such reliable properties, they enhance the performance of automotive components.