//Carbon Composite Bellows Springs

Carbon Composite Bellows Springs

Carbon Composite Bellows Springs (CCBS)

The Carbon Composite Bellows™ Spring (CCBS) is a system of carbon fiber elements that combine to work as a high performance, light weight and design flexible compression spring.

Meant to replace conventional coil springs or metallic Belleville disc springs by offering value through unique dynamic characteristics and unparalleled in-the-field design flexibility, the Carbon Composite Bellows Spring offers new solutions to old challenges.

A functional spring is made from several individual elements, paired in sets and joined to make a stack. The spring rate of the stack is determined by the number of elements, the base rate of each element, and their series or parallel orientation in the stack.

Why Carbon Fiber?

Carbon fiber composite material offers significant advantages compared to conventional metallic alloys when used as a spring material.

  • The manufacture of carbon fiber parts is through molding. This allows for complicated and intricate designs to be formed in a single operation and permits design features not possible with a machined or stamped metallic part.
  • Laminate construction permits steeper pitch angles to allow more deflection per element without overstressing.
  • The base rate of each element is determined by its finished thickness. This means new or custom rates can be built quickly and do not require the use of different raw material sizes or special tooling.
  • Carbon fiber is non-magnetic and impervious to many liquids and compounds that lead to metallic corrosion.
  • For a given rate and deflection, a CCBS stack weighs significantly less – often up to 60-70%!

Benefits of a CCBS Stack

Carbon Composite Bellows Shock

  • Adaptable – The shape of the rate curve is able to be tuned to meet the needs of the project without a costly redesign or even the manufacture of new parts. It is simply a reorientation of the standard elements.
  • Centered Load – Side load on the spring carrier is a thing of the past. As the carbon elements work in bending, instead of torsion, to store and release energy, the parallel ends of the spring remain parallel throughout the deflection.
  • In-the-field Design Flexibility – The ability to change the spring rate, length, and deflection of a CCBS stack on the fly, without any new manufacturing, means that you have ultimate control over the spring used in your product.
  • Mechanically Efficient – Low hysteresis due to an optimized interface between the elements and the reduction of friction at the spring-seat surface results in a spring that is as efficient at releasing energy as it is at storing it.

Possible Applications and Uses for CCBS

  • Weight-conscious projects
  • Motorsports
  • Aerospace
  • Outdoor Recreation
  • High Performance Activities
  • General Industry

Key Considerations for CCBS:

  • Overall dimensional constraints: ID, OD, and free length
  • Deflection vs. free length
  • Required rate or range of rates
  • Environmental effects: UV exposure, cleanliness, and temperature
  • Service life/cycles and frequency of inspection
CCBS Washer Elements
For More Information on Carbon Composite Bellows Springs:

Carbon Composite Specialist

Greg Hazard
(317) 709-5560

Downloads / Links

CCBS Brochure
Request a Quote Form