Disc Washers
Disc Washers, also known as Belleville Washers, are conical-shaped compression washers designed to absorb dynamic loads, compensate for thermal expansion, and provide controlled tension in bolted joints. Unlike standard flat washers, disc washers generate axial force, making them ideal for high-stress, high-vibration applications in automotive, aerospace, industrial machinery, and power generation industries.
At Rajal Industries, we manufacture precision-engineered Disc Washers conforming to ISO, ASME, and DIN standards, ensuring consistent load distribution, fatigue resistance, and superior durability in critical fastening applications.
Sizes & Standards
| Size Range | Standards |
|---|---|
| Metric: M1.6 to M100 | ISO 7089 – International standard for flat washers |
| Imperial: 1/4" to 1-1/2" | ASME B18.22.1 – U.S. standard for disc compression washers |
| DIN 2093 – German standard for high-performance disc spring washers |
Material & Strength Grades
| Material Type | Available Strength Grades | Industry Standards |
|---|---|---|
| Carbon Steel & Hardened Steel | Class 5.8, 8.8, 10.9 | DIN 2093, ISO 7089, ASME B18.22.1 |
| Stainless Steel (Corrosion Resistant) | A2-70 (SS 304), A4-80 (SS 316) | ISO 3506, DIN 2093 |
| Alloy Steel (High Load-Bearing Capacity) | Class 10.9, 12.9 | DIN 2093, ISO 7089 |
| Phosphor Bronze & Brass (Non-Corrosive & Electrical Applications) | Custom Hardness Ratings | ISO 7089, ASME B18.22.1 |
- Heat-Treated for Maximum Hardness & Load Retention –Disc washers undergo hardening and stress-relieving treatments to enhance durability and performance.
- Load Ratings Based on Material & Application:
- Carbon Steel Class 8.8 Disc Washer: 800-900 MPa tensile strength
- Stainless Steel A4-80 Disc Washer: 700-800 MPa corrosion-resistant strength
Disc Washer Design & Engineering Features
Conical Spring Design for Axial Load Absorption
- Generates preload force in bolted connections, ensuring joint stability under dynamic loads.
Reduces fatigue and bolt loosening in high-vibration environments.
Stackable Configuration for Load Adjustment
- Can be stacked in parallel or series to achieve desired force and deflection levels.
Offers customized tension control in high-load applications.
Enhanced Load Distribution for Improved Performance
- Distributes clamping force more effectively than standard flat washers.
Reduces bolt stress and prevents material deformation.
Corrosion-Resistant Coatings for Longevity
- Available in stainless steel, zinc-plated, black oxide, and phosphor bronze finishes.
Ensures long-term durability in harsh industrial and marine environments.
Multiple Variants for Specialized Applications
- Standard Disc Washers (DIN 2093) – For general-purpose compression applications.
Heavy-Duty Disc Springs – Designed for high-load machinery and industrial shock absorbers.
Lightweight Stainless Steel Disc Washers – Used in marine, food processing, and chemical industries.
Thread Specifications & Precision Engineering
| Feature | Description | Application |
|---|---|---|
| Standard Disc Washers (DIN 2093) | Provides spring tension & shock absorption | Industrial machinery, automotive |
| Stackable Disc Washers | Allows customized force settings | Aerospace, power generation |
| Heavy-Duty Disc Washers | Designed for high-load structural applications | Railway, defense, bridges |
| Corrosion-Resistant Stainless Steel Disc Washers | Ensures durability in marine & chemical environments | Offshore platforms, shipbuilding |
Thread Fitment & Compliance
- Metric disc washers conform to DIN 2093 tolerances, ensuring secure fitment with standard fasteners.
- Imperial disc washers meet ASME B18.22.1 standards for universal compatibility.
Common Applications of Disc Washers
- Construction & Infrastructure – Used in bridge expansion joints, rail track fastenings, and seismic-resistant structures.
- Automotive & Heavy Vehicles – Ensures secure fastening in suspension systems, engines, and chassis connections.
- Industrial Machinery & Heavy Equipment – Provides load retention in bolted joints and dynamic systems.
- Aerospace & Defense Engineering – Used for vibration damping and controlled load transfer in aircraft and military vehicles.
- Power Generation & Energy Sector – Applied in turbine assemblies, wind power systems, and pressure valves.
Why Choose Rajal Industries for Disc Washers?
Manufactured to International Standards
Ensuring precision engineering, strength, and compliance.
Conical Spring-Loaded Design for Controlled Compression
Prevents bolt loosening in dynamic load applications.
Customizable Variants Available
Offering stackable, heavy-duty, and corrosion-resistant disc washers.
Bulk & Custom Orders
Ideal for construction, automotive, and industrial applications.
Stringent Quality Control
Each batch undergoes fatigue testing, dimensional accuracy verification, and corrosion resistance assessment.
Keep up to date-get email-updates
Stay tuned for the latest Company news
Our Offices
C-204, Vaibhav Platina, Nr. Kaveri Trishra, S P Ring road, Shilaj, Ahmedabad, Gujarat-380054
Call us
+91-846 036 2030
Email Us
rajalfast@gmail.com sales@rajalindustries.com