Bauer Belleville Washer Selection Guide

Bauer Springs’ CB Belleville Washers are precision-engineered Belleville washers designed to deliver high axial loads in compact, space-restricted assemblies. Manufactured to strict dimensional tolerances, CB Belleville Washers provide predictable force–deflection characteristics, making them suitable for industrial machinery, bolted joint preload applications, heavy equipment, and dynamic mechanical systems.

Disc Spring Fundamentals & Selection Methodology at Bauer

How to Select the Right Disc Spring

Disc springs (Belleville washers) deliver very high axial loads in compact spaces. Proper selection requires matching force, deflection, stack configuration, and duty cycle to your application.

What a Disc Spring Is

A disc spring is a conical, washer-shaped spring engineered to produce high forces with relatively short deflection compared to coil springs. They may be used individually or stacked to tailor load and travel characteristics.

Core Selection Criteria

1) Define Load Requirements

Maximum load: Highest axial force the spring must support.
Minimum load: Required preload or retained clamp force.
Operating range: Avoid selecting a spring that operates near solid height.

Best practice is to select a disc spring that achieves the required working load within a controlled portion of its available deflection.

2) Determine Required Deflection & Stack Strategy

Required travel often determines whether a single disc spring or a stack configuration is needed.

Single spring: Suitable for limited deflection and moderate loads.
Series stacking: Increases total deflection while maintaining similar load.
Parallel stacking: Increases load capacity while maintaining similar deflection.
Mixed stacks: Combine series and parallel to fine-tune force and travel.

3) Confirm Static vs. Dynamic Duty

Static applications: Select based on required load at installed height.
Dynamic (cyclic) applications: Select fatigue-rated disc springs and avoid full flattening.

Operating consistently within a stable working range improves fatigue life and reliability.

Fit, Environment, Checklist & Performance Impact

4) Verify Dimensional Fit

Inner diameter (ID): Must clear shaft or fastener.
Outer diameter (OD): Must seat fully on mating surface.
Free & compressed height: Must fit within assembly limits.
Guidance: Shaft or sleeve guidance improves repeatability.

5) Match Material to Environment

Corrosion exposure: Outdoor, chemical, or washdown environments.
Temperature range: Elevated temperatures may require specialty alloys.
Contamination: Dust or debris may affect seating and performance.

6) Seating & Interface Considerations

Use hardened thrust surfaces where needed.
Ensure flat, aligned mating components.
Maintain proper guide clearances to prevent side loading.

Our Practical Selection Checklist

Use our structured evaluation process to confirm the correct disc spring and stack configuration for your application.

Step	Decision Point
1	Define required load range (minimum & maximum)
2	Determine required deflection (travel)
3	Confirm static or dynamic duty cycle
4	Verify installation height constraints
5	Assess environmental conditions
6	Select appropriate material & finish
7	Determine stack configuration (single, series, parallel, mixed)

Ready to specify the right disc spring for your application? Contact Bauer Springs today to discuss your load requirements, stack configuration needs, and environmental conditions. Our engineering team can help you select or customize a CB Disc Spring solution that delivers reliable, long-term performance.