Precision Slotted Disc Spring Modular Precipitation Hardened 17 4 PH Stainless Steel
Precision Slotted Disc Spring Modular Precipitation Hardened 17 4 PH Stainless Steel
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
High Torque Disc Spring prevents bolt loosening in extreme conditions (up to 15,000 Nm). Made from hardened steel with PTFE coating, it maintains 98% preload after 10,000+ cycles. ISO-compliant, reduces maintenance by 65% for industrial/auto applications.
Product Custom Attributes
Highlight
Precision slotted disc spring
,Modular slotted disc spring
,belleville disc spring 200Hz
Material:
Steel
Load Type:
Compression
Shape:
Flat
Specification:
SUS 302
Preload Force:
50,000 N
Vibration Frequency:
200 Hz
Preload Retention:
98% After 10,000 Cycles
Conical Profile Angle:
14°
Thickness Range:
3mm To 12mm
Torque Range:
15,000 Nm
Stainless Steel Grade:
17-4 PH (ASTM A693 Grade 660)
Yield Strength:
1100 MPa
Friction Coefficient:
0.12±0.02
Salt Spray Resistance:
2000+ Hours (ASTM B117)
Stacking Capacity:
2-6 Discs
Load Capacity Increase:
40-180%
Operating Temperature:
-40°C To 120°C
Pressure Resistance:
100+ Bar
Vibration Test Cycles:
500,000 At 150 Hz
Torque Stability:
±5%
Product Description
Detailed Specifications & Features
High Torque Disc Spring: The Key to Secure High-Torque Bolted Connections
Bolted connections in high-torque applications—where preload forces exceed 50,000 N and operational vibrations reach 200 Hz—are inherently prone to loosening. According to ISO 16130 statistics, this phenomenon is responsible for 23% of industrial equipment failures.
The High Torque Disc Spring addresses this critical issue through a patented torque retention mechanism that maintains 98% of initial preload after 10,000+ load cycles.
Engineering Design
Engineered with a precision-calculated conical profile (14° angle) and variable thickness design (3mm to 12mm), this specialized disc spring exerts a consistent radial force that counteracts torque-induced relaxation. This ensures bolted joints remain within ±5% of target torque even under extreme rotational forces up to 15,000 Nm.
Material & Construction
- Constructed from precipitation-hardened 17-4 PH stainless steel (ASTM A693 Grade 660)
- Minimum yield strength of 1100 MPa
- Three-stage surface treatment process:
- Electropolishing for micro-roughness reduction
- PTFE coating for friction stabilization (coefficient of friction 0.12±0.02)
- Passivation to achieve 2000+ hours of salt spray resistance per ASTM B117
Performance Features
| Feature | Specification |
|---|---|
| Modular Configuration | Nested disc design allows stacking of 2-6 discs |
| Load Capacity Increase | 40-180% with stacked configuration |
| Vibration Performance | Prevents bolt loosening in 100% of test samples at 500,000 vibration cycles (150 Hz) |
| Maintenance Reduction | 65% reduction in maintenance intervals compared to conventional lock washers |
Field-Tested Applications
Automotive Crankshaft Assemblies (8,000 RPM engine speeds)
Wind Turbine Flange Connections (-40°C to 120°C operating range)
Offshore Drilling Rigs (100+ bar pressure environments)
Gas Turbine Casings
Aerospace Landing Gear
Heavy-Duty Press Tooling
Backed by FEA simulation data and ISO 898-2 compliance testing, the High Torque Disc Spring delivers quantifiable reliability. For critical applications, this component ensures connection integrity that directly translates to 32% lower downtime costs and enhanced operational safety.
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