Specifications
Place of Origin :
Sihong, China
Brand Name :
Sunzo
Certification :
CE/IATF16949/45001/14001/9001
MOQ :
Negotiable
Price :
Negotiable
Packaging Details :
Carton
Delivery Time :
Negotiable
Payment Terms :
Negotiable
Material :
High-carbon spring steel (70#/72B), Stainless steel (SUS304/SUS316), Alloy steel
Tensile strength :
≥1,900 MPa
Temperature range :
-40°C to 200°C
Load-deflection curve :
Non-linear
Preload force :
Sustained
Service life :
Exceeding 10,000 load cycles
Corrosion resistance :
Yes (SUS304/SUS316)
Shock absorption :
Yes
Thermal cycling resistance :
Yes
Vibration resistance :
Yes
Bolt tension maintenance :
Yes
Elastic recovery :
Exceptional
Dimensional precision :
Rigorous
Heavy-duty capability :
Yes
Pressure resistance :
High (Oil & Gas applications)
Leak prevention :
Yes (Chemical Processing)
Fatigue resistance :
Yes
Mechanical stress resistance :
Cyclic
Standard compliance :
DIN6796
Geometry :
Frustoconical (convex disc)
Description
Disc Spring Washer (DIN6796) The Trusted Belleville Washer for Industrial Safety
In industrial operations where even minor bolt loosening can escalate into catastrophic failures, the Disc Spring Washer (DIN6796) - globally recognized as the Belleville washer - stands as a cornerstone of connection security. Conceived in the late 19th century by French engineer Julien Belleville, this iconic anti-loosening component was engineered to address the critical flaw of spontaneous bolt loosening. Today, as a DIN6796 standard-compliant product, it undergoes rigorous quality control from material selection to dimensional precision to ensure unwavering performance in the world's most demanding industrial environments.
Engineering Excellence: Design & Material Science
At its core, the DIN6796 washer's frustoconical (convex disc) geometry is a masterpiece of mechanical engineering. When compressed, this shape generates a non-linear load-deflection curve, enabling it to absorb vibrational energy, compensate for thermal expansion/contraction, and resist cyclic mechanical stress - three primary causes of bolted joint failure. Unlike flat washers that merely distribute load, the Belleville design maintains sustained preload force even as bolts experience micro-movements, effectively preventing rotational loosening and fatigue-induced failure.
Constructed from premium materials including:
  • High-carbon spring steel (70#/72B): Offers exceptional tensile strength (≥1,900 MPa) and elastic recovery for heavy-duty applications
  • Stainless steel (SUS304/SUS316): Provides corrosion resistance in chemical plants, marine environments, and food processing facilities
  • Alloy steel: Withstands extreme temperatures from -40°C to 200°C, making it ideal for power generation and furnace systems
Industrial Applications: Where Safety Meets Reliability
The DIN6796 washer's versatility spans critical sectors:
  • Chemical Processing: Resists corrosive agents in reactor vessels and pipeline flanges, ensuring leak-free operations
  • Construction Machinery: Absorbs shock in excavator booms and crane joints, reducing downtime in rugged job sites
  • Power Generation: Maintains bolt tension in turbine casings and boiler assemblies, even under thermal cycling
  • Oil & Gas: Withstands high pressure in drilling rigs and offshore platforms, critical for preventing environmental hazards
Safety & Cost Efficiency: A Proven Investment
By maintaining optimal bolt tension over extended service intervals, the DIN6796 washer directly mitigates risks:
  • Reduced Downtime: Eliminates frequent re-tightening, cutting maintenance labor costs by up to 40% in heavy machinery applications
  • Catastrophe Prevention: Prevents bolt failure in safety-critical systems, such as chemical plant pressure vessels or power plant turbines
  • Longevity: Its robust construction ensures service life exceeding 10,000 load cycles, outperforming conventional washers by 3-5 times
For industries where safety is non-negotiable, the DIN6796 Disc Spring Washer is more than a component - it is a trusted partner in operational integrity.
Industrial 1 2 Belleville Washer High Carbon Spring Steel Belleville Washer 6796 Din
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Industrial 1 2 Belleville Washer High Carbon Spring Steel Belleville Washer 6796 Din

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Place of Origin :
Sihong, China
Brand Name :
Sunzo
Certification :
CE/IATF16949/45001/14001/9001
MOQ :
Negotiable
Price :
Negotiable
Packaging Details :
Carton
Contact Supplier
Industrial 1 2 Belleville Washer High Carbon Spring Steel Belleville Washer 6796 Din
Industrial 1 2 Belleville Washer High Carbon Spring Steel Belleville Washer 6796 Din
Industrial 1 2 Belleville Washer High Carbon Spring Steel Belleville Washer 6796 Din

Jiangsu Sunzo Spring Elasticity Technology Co., Ltd

Verified Supplier
1 Years
nanjing
Since 2006
Business Type :
Manufacturer, Exporter, Seller
Total Annual :
1.2M-1.4M
Employee Number :
160~200
Certification Level :
Verified Supplier
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