🥏 Conical Disc Washers (Belleville Washers) | Neo Fasteners
Conical Disc Washers, commonly referred to as Belleville Washers, are conically-shaped spring washers that offer high load capacity in a compact space. These washers are designed to provide an axial preload and resilient deflection under compressive loads. They are ideal for dynamic bolted joints where vibration damping, thermal expansion compensation, or bolt tension retention is critical.
At Neo Fasteners, we supply an extensive range of standard, heavy-duty, and custom-size conical disc washers in premium materials and finishes, compliant with international standards.
🛠️ Key Features
- Cone-shaped design with progressive spring characteristics
- Maintains bolt tension and absorbs vibration/shock
- Stackable in parallel or series for required load/deflection
- Excellent for cyclical loading and thermal movement applications
- High load-bearing capacity in tight axial space
📐 Available Sizes (Metric)
| Size (ID × OD × Thickness) | Load (approx.) | Deflection | Standard |
|---|---|---|---|
| M3: 3.2 × 7.0 × 0.3 mm | 70 N | 0.2 mm | DIN 2093 |
| M4: 4.3 × 9.0 × 0.4 mm | 150 N | 0.3 mm | DIN 2093 |
| M5: 5.3 × 10.0 × 0.5 mm | 240 N | 0.4 mm | DIN 2093 |
| M6: 6.4 × 12.0 × 0.6 mm | 400 N | 0.5 mm | DIN 2093 |
| M8: 8.4 × 16.0 × 0.8 mm | 900 N | 0.6 mm | DIN 2093 |
| M10: 10.5 × 20.0 × 1.0 mm | 1400 N | 0.8 mm | DIN 2093 |
| M12: 13.0 × 24.0 × 1.25 mm | 2100 N | 1.0 mm | DIN 2093 |
| M16: 17.0 × 30.0 × 1.5 mm | 3200 N | 1.3 mm | DIN 2093 |
| M20: 21.0 × 38.0 × 2.0 mm | 5000 N | 1.6 mm | DIN 2093 |
Custom sizes available upon request
Inch sizes and special profiles can be manufactured as per drawing
🧱 Materials Offered
- Spring Steel (EN 42J / EN 47)
- Stainless Steel (SS 301 / SS 304 / SS 316)
- Inconel, Alloy Steel for high-temperature use
- Phosphor Bronze / Beryllium Copper – Electrical applications
- Hardened & Tempered Steel for high stress/load
🎨 Finish Options
| Finish Type | Application | Color/Look |
|---|---|---|
| Black Oxide | General industrial use | Matte black |
| Zinc Plated | Corrosion resistance (indoor) | Bright silver |
| Yellow Zinc | Automotive/Panel use | Golden |
| Dacromet Coating | High-corrosion environment | Grey |
| Phosphate Coated | Anti-friction & rust-prevent | Dark grey |
| Passivated (SS) | Natural stainless steel look | Satin silver |
🔩 Applications
- Bolt preload retention in turbines, gearboxes, and machine tools
- Vibration and thermal compensation in automotive assemblies
- Dynamic clamping in electrical terminals and busbars
- Power transmission systems, bearing preload, flanges
- Ideal for heavy-duty industrial, aerospace, and railway uses
✅ Standards Available
- DIN 2093 – Standard conical spring washers
- DIN 6796 – High-load disc washers for bolted joints
- Custom washers as per drawing/specification
📦 Packaging & Supply
- Packed in cartons or polybags – 100 to 1000 pcs/pack
- OEM barcoding, private labeling, export packaging
- Supply available in bulk, retail, and custom kits
- ISO 9001:2015 Certified | RoHS Compliant
📞 Contact Neo Fasteners
📧 Email: neofasteners@yahoo.com
📞 Call/WhatsApp: +91-96328 07665
🌐 Websites:
🔗 neofasteners.com (Google Site)
📍 Location: Bengaluru, Karnataka, India