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China factories

China factory - Jiangsu Sunzo Spring Elasticity Technology Co., Ltd

Jiangsu Sunzo Spring Elasticity Technology Co., Ltd

  • China,Nanjing
  • Verified Supplier
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  2. High Torque Disc Spring>
  3. Precision Slotted Disc Spring Modular Precipitation Hardened 17 4 PH Stainless
China Precision Slotted Disc Spring Modular Precipitation Hardened 17 4 PH Stainless
China Precision Slotted Disc Spring Modular Precipitation Hardened 17 4 PH Stainless

  1. China Precision Slotted Disc Spring Modular Precipitation Hardened 17 4 PH Stainless
  2. China Precision Slotted Disc Spring Modular Precipitation Hardened 17 4 PH Stainless
  3. China Precision Slotted Disc Spring Modular Precipitation Hardened 17 4 PH Stainless

Precision Slotted Disc Spring Modular Precipitation Hardened 17 4 PH Stainless

  1. MOQ： Negotiable
  2. Price： Negotiable
  3. Get Latest Price
Packaging Details Carton
Delivery Time Negotiable
Payment Terms Negotiable
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%
Place of Origin Sihong, China
Brand Name Sunzo
Certification CE/IATF16949/45001/14001/9001

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  1. Product Details
  2. Company Details

Product Specification

Packaging Details Carton Delivery Time Negotiable
Payment Terms Negotiable 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% Place of Origin Sihong, China
Brand Name Sunzo Certification CE/IATF16949/45001/14001/9001
High Light Precision slotted disc spring ，Modular slotted disc spring ，belleville disc spring 200Hz
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.
High Torque Disc Spring technical diagram showing conical profile and variable thickness design

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory

  • Business Type:

    Manufacturer,Exporter,Seller

  • Year Established:

    2006

  • Total Annual:

    1.2M-1.4M

  • Employee Number:

    160~200

  • Ecer Certification：

    Verified Supplier

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Get in touch with us

  • Reach Us
  • Jiangsu Sunzo Spring Elasticity Technology Co., Ltd
  • No.20, Xinghuo Road, Nanjing High-tech Development Zone
  • https://www.spring-disc.com/

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