Premium M3-M30 Belleville Washers: High-Load Conical Spring Solutions
Our M3-M30 Belleville Washers, also known as Conical Spring Washers or Disc Springs, are the ultimate solution for maintaining bolt tension in high-stress environments. Manufactured to DIN 6796 and DIN 2093 standards, these fasteners are designed with a unique conical shape that acts as a powerful spring. Unlike standard flat washers, Belleville disc springs store mechanical energy and compensate for relaxation caused by thermal expansion, vibration, or gasket set, ensuring a permanent and secure clamping force.
As a professional Belleville washer factory, we specialize in high-tensile 65Mn Spring Steel and 316 Stainless Steel, providing the reliability required for critical industrial and energy sector applications.
- High Load Capacity: Specifically engineered to deliver immense spring force within a very small space or travel distance.
- Vibration & Shock Absorption: Effectively prevents fasteners from loosening in heavy machinery and automotive engines subjected to constant dynamic loads.
- Thermal Compensation: Maintains consistent bolt preload even as materials expand and contract due to extreme temperature fluctuations.
- Stackable Design: Can be stacked in series or parallel to customize the load and deflection characteristics for specialized engineering needs.
Select the correct metric Belleville washer size to match your high-strength bolt (Grade 8.8 / 10.9) requirements.
| Size | Inner Dia (d1) | Outer Dia (d2) | Thickness (s) | Max Height (h) |
|---|---|---|---|---|
| M8 | 8.4 mm | 18.0 mm | 2.0 mm | 2.35 mm |
| M10 | 10.5 mm | 23.0 mm | 2.5 mm | 2.95 mm |
| M12 | 13.0 mm | 29.0 mm | 3.0 mm | 3.55 mm |
| M16 | 17.0 mm | 39.0 mm | 4.0 mm | 4.85 mm |
| M20 | 21.0 mm | 45.0 mm | 6.0 mm | 7.20 mm |
Our M3-M30 Conical Fasteners are indispensable for several high-demand sectors:
- Electrical Power: Maintaining contact pressure in busbar connections to prevent overheating from thermal cycling.
- Automotive Industry: Used in clutch assemblies, brake systems, and engine mounts for shock absorption.
- Oil & Gas: Securing flange bolts in piping systems exposed to high pressure and temperature variations.
- Heavy Machinery: Essential components for presses, crushers, and industrial valves.
Q: What is the difference between DIN 6796 and DIN 2093?
A: DIN 6796 is a heavy-duty conical washer designed specifically for bolt locking. DIN 2093 (Disc Springs) is typically used as a spring element in mechanical designs requiring precise deflection control.
Q: Do you offer Dacromet coating for M24+ sizes?
A: Yes, we provide Dacromet and Geomet coatings for large-size Belleville washers to ensure 1000+ hours of salt spray resistance without the risk of hydrogen embrittlement.
Source M3-M30 Belleville Washers from a Professional Supplier
Seeking bulk conical spring washers with Mill Test Certificates (MTC) and factory-direct pricing? We support global wholesale and custom engineering projects. Contact us today for a free quote and technical samples!
