5N To 500N Wavy Spring Washer Preload For Controlled Axial Force Hydraulic Seals
5N To 500N Wavy Spring Washer Preload For Controlled Axial Force Hydraulic Seals
Basic Properties
Place of Origin:
Sihong, China
Brand Name:
Sunzo
Certification:
CE/IATF16949/45001/14001/9001
Trading Properties
Minimum Order Quantity:
Negotiable
Price:
Negotiable
Payment Terms:
Negotiable
Product Summary
Ensure hydraulic seal integrity with precision waved springs. Features ISO 10243 compliance, 5-500N preload range, and custom installation kits. Expert technical support for optimal performance in demanding applications.
Product Custom Attributes
Highlight
500N wavy spring washer
,500N wavy spring washer
,Preload wavy spring washer
Spring Force Range:
5N To 500N
Surface Roughness:
≤1.6μm
Material Options:
50CrVA, SUS304
Housing Bore Roundness:
≤0.05mm
Housing Perpendicularity:
≤0.02mm/100mm
Compression Tolerance:
±0.1mm
Compression Rate:
≤5mm/min
Axial Preload Range:
5-500N
Compression Limit:
≤40% Of Free Length
Operating Temperature:
-200°C To 650°C
Corrosion Protection:
Dacromet, Passivation
Salt Spray Resistance:
1000hr
Alignment Tolerance:
≤0.03mm Runout
Wave Height Tolerance:
±0.02mm
Thickness Tolerance:
±0.02mm
Preload Compression:
20-30% Of Free Length
Dynamic Load Material:
65Mn
Retaining Ring Standard:
DIN 471
Adhesive Type:
Loc-tite 243
Compliance Standards:
ISO 10243, ASME B18.18.2
Product Description
Detailed Specifications & Features
Waved Spring Installation Guide for Hydraulic Seals
Proper installation of waved springs is critical for maintaining hydraulic seal integrity, preload stability, and system longevity. As precision elastic elements with contoured peaks and valleys, waved springs deliver controlled axial force in compact hydraulic assemblies—typically ranging from 5N to 500N preload in seal applications. This guide outlines step-by-step installation protocols, material-specific handling requirements, and performance validation techniques to ensure optimal functionality.
Pre-Installation Preparation
Spring Inspection:
- Verify dimensional conformity using calipers (±0.02mm tolerance for wave height and thickness)
- Check for surface defects under 10x magnification; reject components with Ra >1.6μm surface roughness
- Confirm material certification matches application requirements (50CrVA for dynamic loads, SUS304 for corrosion resistance)
Seal Housing Preparation:
- Clean mating surfaces with isopropyl alcohol to remove oil, grease, or particulate contamination
- Verify housing bore roundness (≤0.05mm out-of-round) and perpendicularity (≤0.02mm/100mm) using a dial indicator
- Apply a thin film of compatible lubricant (PTFE-based grease for high-temperature applications)
Installation Procedure
Orientation Alignment:
- Position the spring with wave crests aligned to seal gland recesses; use alignment pins for multi-spring assemblies
- Ensure the spring's free length matches design specifications (tolerance ±0.1mm) to prevent under/over-compression
Controlled Compression:
- Use a hydraulic press with force gauge to achieve target preload (recommended compression: 20-30% of free length)
- Avoid shock loading; maintain compression rate ≤5mm/min for materials like Inconel718 to prevent work hardening
Retention Mechanism:
- Secure with retaining rings (per DIN 471) or adhesive bonding (Loc-tite 243 for metal-to-metal applications) for vertical installations
- For dynamic seals, implement anti-rotation features (keyways) to prevent spring twist during operation
Critical Installation Parameters
| Parameter | Specification | Testing Method |
|---|---|---|
| Axial Preload | 5-500N (application-dependent) | Load cell measurement |
| Compression Limit | ≤40% of free length | Vernier caliper verification |
| Operating Temperature | -200°C to 650°C (material-dependent) | Thermal cycling chamber test |
| Corrosion Protection | Dacromet (1000hr salt spray) or passivation | ASTM B117 salt spray testing |
Troubleshooting Common Issues
- Preload Decay: Caused by insufficient compression (≤15% free length); resolve by increasing compression to 25-30%
- Seal Leakage: Indicates misalignment; use laser alignment tools to ensure spring concentricity (≤0.03mm runout)
- Spring Fatigue: Caused by exceeding 40% compression; replace with higher-stiffness model (65Mn instead of SUS304)
SUNZO provides application-specific installation kits, including torque wrenches, alignment jigs, and digital preload gauges. Our technical team offers on-site installation support and FEA simulation to optimize spring performance in critical hydraulic systems. All products comply with ISO 10243 and ASME B18.18.2 standards, with full traceability from raw material to finished product.
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