Disc Spring Stacks

The required various load/deflection characteristics of Belleville disc springs can be obtained from the various stacking combinations. The stack combination methods and load&deflection relation as the table below. Disc spring stacks, also known as Belleville washer stacks, are assemblies created by combining multiple disc springs in parallel, in series, or in a mixed configuration. Stacking disc springs allows engineers to achieve customized load–deflection characteristics that cannot be obtained with a single spring. Whether you require high load capacity, greater deflection, or a balanced performance, disc spring stacks provide an efficient and compact solution.

Disc Spring Stacks are assemblies made by arranging multiple Belleville disc springs in parallel, series or combined configurations to achieve specific load, deflection and stiffness requirements. A single disc spring may not always provide the required force or travel, so disc spring stacks are commonly used to create customized load-deflection characteristics for demanding industrial applications.

HEGONG SPRING manufactures custom disc spring stacks and Belleville washer stacks according to customer drawings, load requirements, installation space and working conditions. Our engineers can design suitable stack arrangements for high load capacity, larger deflection, stable preload, shock absorption and compact installation.

Custom Disc Spring Stack Design for Load and Deflection Requirements

The required load and deflection characteristics of Belleville disc springs can be obtained through different stacking combinations. By changing the direction and number of disc springs in the stack, engineers can adjust the total force, total deflection and spring stiffness of the assembly.

Disc spring stacks are widely used when equipment requires:

• Higher load capacity in limited space

• Greater deflection or travel

• Stable preload under working conditions

• Compensation for wear, thermal expansion or relaxation

• Shock absorption and vibration control

• Custom spring force in compact mechanical systems

Whether you need a simple Belleville washer stack or a complex parallel-series disc spring stack, HEGONG SPRING can provide engineering support and customized manufacturing.

Disc Springs Stack Types

1. Stacking in Parallel		The load of the stacking disc springs in parallel will be in direct proportion to the number of single disc springs making up the stack.
2. Stacking in Series		The deflection of stacking disc springs in series will be in direct proportion to the number of single disc springs making up the stack.
3. Stacking in parallel & series combination		Almost any required load/deflection characteristics can be obtained from the different design of stacking combination.

The designed & expected load/deflection characteristics of disc springs stack just be reached under the correct installation. A guiding element is necessary to keep the disc springs stack in position. This should preferably be a mandrel. HEGONG SPRING® can deliver disc springs stack pre-assembled on a guiding element and highly recommend this way.

Pre-Assembled Disc Spring Stacks on Guiding Elements

Correct installation is important for disc spring stack performance. A guiding element is necessary to keep the stack in position and prevent tilting, slipping or uneven loading during compression. The guiding element is usually a mandrel, sleeve or other positioning structure.

HEGONG SPRING can supply pre-assembled disc spring stacks on guiding elements according to the customer’s installation structure. This solution is highly recommended for equipment manufacturers who need stable assembly quality and easier installation.

Benefits of pre-assembled disc spring stacks include:

• Easier installation in customer equipment

• Reduced assembly errors

• More stable load-deflection performance

• Better alignment during compression

• Smaller load tolerance

• Improved maintenance efficiency

• Suitable for repeated production and project supply

Advantages of HEGONG Disc Spring Stacks

HEGONG SPRING ® manufactures disc spring stacks for customers who need precise load control and reliable performance in industrial equipment.

Our advantages include:

• Custom disc spring stack design based on load and deflection requirements

• Parallel, series and combination stack arrangements available

• Pre-assembled disc spring stacks on guiding elements

• Load-deflection testing for complete disc spring stack assemblies

• Load testing machines capable of measuring loads up to 4000KN

• Small load tolerance and stable performance

• Easier installation and maintenance

• Engineering support for special working conditions

Disc Spring Stack Calculation & Design Considerations

Designing disc spring stacks requires knowledge of load–deflection characteristics and the effects of friction between contacting surfaces.

• Parallel Stack Calculation:
  Total load = single spring load × number of springs in parallel.

• Series Stack Calculation:
  Total deflection = single spring deflection × number of springs in series.

• Combination Stacks:
  Combine both formulas to achieve the desired spring curve.

Additional considerations:

• Friction between springs in parallel can reduce overall efficiency.

• Lubrication is recommended to reduce wear and improve consistency.

• Excessively large stacks may increase assembly complexity and cost.

Material and Surface Treatment Options

Disc spring stack material should be selected according to load requirement, working temperature, corrosion condition and fatigue life. HEGONG SPRING ® can recommend suitable materials for general industrial applications, corrosion-resistant environments, high-temperature applications and low-temperature applications.

Common options include:

• Spring steel disc spring stacks

• Stainless steel Belleville washer stacks

• Corrosion resistant disc spring stacks

• High temperature disc spring stacks

• Cryogenic disc spring stacks

• Custom alloy disc spring stacks

Surface treatment can be selected according to the working environment to improve corrosion protection, wear resistance or assembly performance.

Applications of Disc Spring Stacks

Disc spring stacks are widely used in industrial equipment where compact size, high load capacity and controlled deflection are required.

How to Choose the Right Disc Spring Stack

To design a suitable disc spring stack, please provide the following information:

If you are not sure which disc spring stack arrangement is suitable for your equipment, our engineers can help calculate and recommend a proper design based on your application requirements.

Custom Belleville Washer Stacks Manufacturer

As a professional disc spring manufacturer, HEGONG SPRING provides custom Belleville washer stacks for customers in valves, hydraulic systems, machine tools, heavy machinery, petrochemical equipment, power systems and other industrial applications.

We can manufacture according to standard sizes, customer drawings or specific load-deflection requirements. From single disc spring selection to complete disc spring stack design, our engineering team can support your project from calculation to production.

Request Custom Disc Spring Stacks

HEGONG SPRING ® supplies custom disc spring stacks, Belleville washer stacks and pre-assembled spring stack solutions for industrial customers worldwide. Send us your drawing, required load, deflection, installation space, material preference and working condition. Our engineers will recommend a suitable stack arrangement and provide technical support for your project.