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Waved Spring and Belleville Washer with Low Stiffness Profile, Space Efficiency, and Linear Load-Deflection Curve for Axial Preload Solutions
Brand Name:
Sunzo
Place of Origin:
Sihong, China
Certification:
CE/IATF16949/45001/14001/9001
Minimum Order Quantity:
Negotiable
Price:
Negotiable
Product Details
| Stiffness Range: | 0.5-20 N/mm (Waved Springs), 50-500 N/mm (Belleville Washers) | Axial Height: | 3-10mm (Waved Springs), 8-30mm (Belleville Washers) |
|---|---|---|---|
| Load Range: | 5-500 N (Waved Springs), 50-10,000+ N (Belleville Washers) | Deflection Range: | 0.1-5mm (Waved Springs) |
| Fatigue Life: | 10⁶+ Cycles At 70% Load (Waved Springs), 10⁵ Cycles At 70% Load (Belleville Washers) | Material Options: | Inconel718, SUS316, 65Mn (Waved Springs) |
| Temperature Resistance: | 650°C (Inconel718) | Corrosion Resistance: | Marine-grade (SUS316) |
| Peak Count: | 3-20 Peaks (Waved Springs) | Thickness Range: | 0.1-3mm (Waved Springs) |
| Tolerance: | ±0.02mm (Waved Springs) | Friction Reduction: | 25% (Phosphating) |
| Salt Spray Resistance: | 1,000+ Hours (Dacromet Coating) | Force Behavior: | Linear (Waved Springs), Non-linear (Belleville Washers) |
| Stackability: | Series/parallel (Belleville Washers) | Coating Options: | Phosphating, Blackening, Dacromet (Waved Springs) |
| Load Capacity: | Customizable Via Stacking (Belleville Washers) | Dynamic Performance: | Consistent Force Output (Waved Springs) |
| Shock Absorption: | High-impact (Belleville Washers) | Environmental Resistance: | Custom Coatings (Waved Springs) |
| Highlight |
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Product Description
Waved Spring vs Belleville Washer: A Technical Comparison for Optimal Axial Preload Solutions
When designing for axial preload applications, engineers often face the critical choice between waved springs and Belleville washers—two distinct elastic elements with unique performance characteristics. Understanding their mechanical differences is essential for optimizing system reliability, space efficiency, and cost-effectiveness.
Core Design & Performance Contrasts
Waved Springs (wave springs) feature a continuous metal ring with precision-formed peaks and valleys, engineered to deliver controlled axial force in compact spaces. Key advantages include:
- Low Stiffness Profile: Typical stiffness range of 0.5-20 N/mm, ideal for applications requiring fine-tuned preload adjustment (e.g., bearing assemblies with tight tolerance requirements)
- Space Efficiency: Up to 50% reduction in axial height compared to Belleville washers, making them critical for miniaturized systems like medical devices and aerospace actuators
- Linear Load-Deflection Curve: Provides predictable force output across deformation ranges (0.1-5mm), ensuring consistent performance in dynamic applications such as robotic joints
Belleville Washers (disc springs) utilize a conical disc design that generates high force with minimal deflection. Their defining traits include:
- High Stiffness Capacity: Stiffness values from 50-500 N/mm, suited for heavy-load applications like bolted flange connections in industrial machinery
- Non-Linear Force Behavior: Exhibits increasing stiffness under compression, making them effective for shock absorption in high-impact scenarios (e.g., automotive suspension systems)
- Stackability: Multiple washers can be stacked in series/parallel to customize load capacity, though this increases axial space requirements
Application-Specific Selection Criteria
| Factor | Waved Springs | Belleville Washers |
|---|---|---|
| Load Range | 5-500 N (ideal for small to medium loads) | 50-10,000+ N (optimized for heavy loads) |
| Axial Space | Requires 3-10mm installation height | Requires 8-30mm installation height |
| Fatigue Life | 10⁶+ cycles at 70% rated load | 10⁵ cycles at 70% rated load |
| Environmental Resistance | Custom coatings (Dacromet, PTFE) for corrosion protection | Limited coating options; prone to stress corrosion in harsh environments |
When to Choose Waved Springs:
- Precision machinery (CNC spindles, semiconductor equipment) requiring micron-level preload control
- Compact assemblies (avionics, medical devices) where space is constrained
- Dynamic applications with cyclic loading (e.g., robotic arms, valve actuators) demanding consistent force output
When to Choose Belleville Washers:
- Heavy industrial equipment (presses, turbines) requiring high static load capacity
- Bolted joints subject to vibration-induced loosening (e.g., pipeline flanges)
- Applications where non-linear force behavior is advantageous (shock absorption)
SUNZO Waved Spring Advantages
SUNZO's aerospace-grade waved springs further differentiate through:
- Material Engineering: Options include Inconel718 (650°C temperature resistance), SUS316 (marine-grade corrosion protection), and 65Mn (high-fatigue performance for 10⁶ cycles)
- Customization Capabilities: CNC-formed profiles (3-20 peaks, 0.1-3mm thickness) with ±0.02mm tolerance, optimized via FEA simulation for specific load-deflection requirements
- Surface Treatments: Phosphating (reduces friction by 25%), blackening (cleanroom compatibility), and Dacromet coating (1,000+ hours salt spray resistance per ASTM B117)
Whether for aerospace actuation systems or precision medical devices, SUNZO's waved springs deliver superior space efficiency and performance consistency—making them the optimal choice for applications where precision and compact design are non-negotiable.
For a detailed load-deflection curve comparison or material-specific performance data, contact our engineering team for custom application analysis.
Product Highlights
SUNZO waved springs offer superior space efficiency (50% smaller than Belleville washers) with precise linear force control. Ideal for compact, dynamic applications requiring high fatigue life (10⁶+ cycles) and custom material options like Inconel718.
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