Disc Springs—often called Belleville washers—are conically shaped annular discs that provide a mechanical force when deformed along their axial axis. Unlike standard flat washers, their unique geometry allows them to act as heavy-duty springs in remarkably tight spaces.

1. The Core Mechanics

• Axial Deflection: When you apply a load to the spring, the cone flattens.
• Energy Storage: This flattening action stores mechanical energy.
• High Force: They generate massive resistance with very little movement (deflection).

2. Versatile Stacking Configurations

You can stack disc springs in different ways to radically alter their performance:

• In Series (Face-to-Face): Stacking them top-to-bottom increases the total deflection (travel distance) while keeping the load capacity the same as a single spring.
• In Parallel (Nested): Stacking them in the same direction multiplies the load capacity while keeping the deflection the same as a single spring.
• In Combination: Mixing series and parallel stacks allows engineers to customize both the force and travel distance for specific industrial needs.

   In Series (More Deflection)         In Parallel (More Force)
          ()()()()                             (((())))

3. Key Applications

• Bolted Joints: Maintaining tension during thermal expansion or contraction.
• Clutches & Brakes: Providing consistent, heavy damping forces in automotive systems.
• Valves: Ensuring tight seals under high-pressure conditions.

Our DIN 2093 Disc Springs are available to purchase online: