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Disc Spring for Maintaining Axial Preload in Bolted Joints
Brand Name:
Sunzo
Place of Origin:
Sihong, China
Certification:
CE/IATF16949/45001/14001/9001
Product Details
| Stress Distribution: | 3D Modeled | Creep Resistance: | Up To 700°C |
|---|---|---|---|
| Heat Treatment: | Tempered To Achieve Required Hardness | Service Life: | 10⁶ Cycles |
| Tank: | 3-5 Tanks | Max Temperature: | 250°C |
| Shock Absorption: | Satellite Deployment Mechanisms | Stacking Options: | Parallel, Series |
| Elastic Recovery Rate: | >95% | Design Type: | Conical |
| Springrate: | Defined By Geometry And Material | Fea Simulation: | Custom Application Support |
| Ultrasonic Flaw Detection: | ASTM E164 | Pricingmodel: | Subscription-based |
| Temperature Resistance: | -270°C To 700°C | ||
| Highlight |
DIN 2093 disc spring for bolted joints,disc spring axial preload maintenance,bolted joint disc spring with warranty |
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Product Description
Disc Spring for Maintaining Axial Preload in Bolted Joints
Introduction
A disc spring is a conical elastic component designed to provide axial force in a compact installation space. For engineers working on motor and bearing preload systems, the main design challenge is often obtaining predictable force without adding unnecessary axial length. The conical geometry stores elastic energy during compression, making the component useful for preload, compensation, actuation and buffering.
How a Disc Spring Works
During compression, the cone height changes and the component stores elastic energy. The resulting axial force can be used for preload, compensation, actuation, buffering or mechanical energy storage. Because the load-deflection relationship is not simply linear, engineers should define the actual working point instead of selecting a spring by diameter alone.
Load, Deflection and Preload
A practical specification should identify free height, installed height, required force, working deflection, maximum deformation, cycle requirement and available installation space. The selected working point should remain within the intended elastic range and should be checked against the complete load path and mating components.
Stacking Configurations
Disc springs can be combined in parallel, series or mixed arrangements. Parallel stacking increases load capacity, while series stacking increases available deflection. Mixed stacks can tune the load-deflection curve. This flexibility is useful when a standard single disc cannot meet the required force and travel at the same time.
Material Selection
Material should be selected according to load, fatigue, temperature and environmental exposure. Available materials include:
- 1074, 65Mn, 60Si2MnA, 50CrVA - Spring steels for general applications
- SUS304, SUS316 - Stainless steels for corrosion-sensitive conditions
- Inconel 718 and Inconel X-750 - Nickel-based alloys for high-temperature applications
Manufacturing and Precision
Precision manufacturing, dimensional verification and load-deflection validation ensure consistent performance. Consistent thickness, diameter and cone geometry are important because dimensional variation can influence working force. For precision mechanisms, the required tolerance should be defined together with the load and installed height.
Surface Treatment
Available surface treatments include blackening, phosphating, Dacromet, zinc plating, mechanical zinc plating and PTFE coating. Treatment selection should consider corrosion exposure, friction, temperature, coating thickness and compatibility with mating components rather than treating surface finish as an isolated specification.
Application Considerations
Disc springs can be used in motor and bearing preload systems. In these mechanisms, the spring may provide axial preload, compensate for dimensional changes, absorb mechanical energy or act as a compact elastic actuator. The final configuration should be evaluated as part of the complete assembly, including the seat, load path, travel and operating environment.
Customization for OEM Projects
Custom disc springs can address non-standard inner and outer diameters, thickness, cone height, material, plate count and stacking configuration. For an OEM project, a drawing, sample or clear application specification helps the manufacturer evaluate geometry and performance together.
How to Start a Technical Inquiry
A useful inquiry should include inner diameter, outer diameter, thickness, free height, target load, working deflection, cycle requirement, temperature, material preference, surface treatment and quantity. A mating-part drawing or sample is especially helpful when the spring is replacing an existing component.
Jiangsu Sunzo Support
Jiangsu Sunzo Elastic Technology Co., Ltd. develops standard and customized elastic-component solutions for industrial customers. For disc spring projects, Sunzo can evaluate drawings, samples and application requirements, then consider material, geometry, stacking configuration and surface treatment as one integrated specification.
Frequently Asked Questions
Is a disc spring the same as a Belleville washer?
The terms are commonly used for the same basic conical spring component.
Can disc springs be customized?
Yes, dimensions, materials and configurations can be evaluated for custom requirements.
Can stacking increase load or deflection?
Yes, appropriate parallel or series arrangements change the load-deflection behavior.
How should material be selected?
Consider load, temperature, corrosion, fatigue and the complete service environment.
Conclusion
A disc spring is a compact and configurable elastic component for applications requiring axial force, preload, compensation or shock absorption. By combining suitable geometry, material, surface treatment and stacking, engineers can develop a solution for motor and bearing preload systems. Jiangsu Sunzo Elastic Technology Co., Ltd. can support standard and customized disc spring requirements from technical evaluation through production.
Product Highlights
Compact conical disc springs (Belleville washers) deliver predictable axial force for preload, compensation & shock absorption in limited spaces, ideal for motor and bearing preload systems with flexible stacking configurations.
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