The conical disc spring washer is a high-strength elastic fastener designed to provide stable preload, absorb vibration, and prevent loosening in dynamic mechanical systems. Also known as a spring conical washer or Belleville conical spring washer, this component delivers significantly higher axial load compared with traditional flat washers. As a commonly used Spring Washer, it is especially suitable for applications requiring compact structure, precise tension control, and long-term stability.
Made from premium materials such as 65Mn, SK5, and SK7, our conical disc spring washer offers outstanding durability and elasticity. Its specifications cover outer diameter 1.7–28 mm, inner diameter 0.83–20.5 mm, and thickness 0.15–2.0 mm, ensuring broad compatibility with various bolts, bearings, and shaft systems. With optional surface treatments—including eco-friendly nickel, electroless nickel, blackening, and zinc–nickel alloy—the washer provides excellent corrosion resistance for use in demanding environments.
High Hardness and Elasticity: Heat-treated to HRC 43–50, ensuring stable spring force under high loads.
Wide Dimensional Range: OD 1.7–28 mm, ID 0.83–20.5 mm, thickness 0.15–2.0 mm to match multiple bolt sizes and force requirements.
Durable Spring Materials: 65Mn, SK5, and SK7 provide superior fatigue resistance and long operational life.
Advanced Surface Protection: Eco-nickel, electroless nickel, blackening, and zinc–nickel alloy finishing enhance corrosion resistance by up to 50%.
High Axial Load Output: The conical disc structure generates strong torque within the shaft, greatly improving bearing stability.
Ideal for High-Vibration Conditions: Optimized for spring washer use in machinery, automotive systems, and precision devices.
Maintains constant preload to prevent bolt loosening during vibration and thermal expansion.
Compact yet powerful design, offering stronger load capacity than flat washers.
Improves mechanical stability, especially when used as a Bearing Spring Washer.
Long service life due to high fatigue resistance and stable elastic behavior.
Suitable for multiple environments, from indoor equipment to corrosive industrial settings.
Flexible installation with compatibility across bearings, rotating shafts, and precision assemblies.
| Specification | Details |
| Outer Diameter (OD) | 1.7–28 mm |
| Inner Diameter (ID) | 0.83–20.5 mm |
| Thickness | 0.15–2.0 mm |
| Material | 65Mn / SK5 / SK7 |
| HRC | 43–50 |
Surface Treatment | Eco-friendly nickel, electroless nickel, blackening, zinc-nickel alloy |
Function | Generates torque within the shaft, significantly impacting its service life. |
The Conical Disc Spring Washer delivers exceptional performance through its unique conical geometry, controlled preload force, and superior fatigue resistance. Across a wide range of mechanical and structural applications, it consistently ensures the three core user-perceived results you aim to achieve:
smooth rotational feel, strong connection strength, and long service life.
Provides stable axial preload to eliminate gaps and minimize vibration.
Ensures a firm, precise rotational response with reduced backlash.
Automatically compensates for minor wear over time, maintaining long-term smoothness.
Achieved Effect: High preload → No wobble → Smooth rotational feel
The Conical Disc Spring Washer generates high load within a compact space, ensuring firm and secure fastening.
Maintains reliable clamping force even under vibration, torque fluctuations, and shock loads.
Ideal for applications requiring anti-loosening, torque resistance, and structural stability.
Achieved Effect: Strong clamping → Anti-vibration → Connection with strength
Withstands high-frequency cyclic loading without performance decay.
Provides controlled elastic force during torsional or opening/closing movements.
Used in robotic arms, actuators, jigs, fixtures, and automation mechanisms requiring long, stable operational life.
Achieved Effect: High fatigue resistance → Consistent cycles → Long service life
Keeps brake assemblies stable with continuous, reliable preload.
Absorbs shock and vibration in suspension systems for durable structural integrity.
Supports engine mounts by buffering torque and extending component lifespan.
Achieved Effect: Impact resistance → Secure fastening → Durability improvement
Ensures precise positioning during mold opening/closing through stable elastic recovery.
Maintains constant clamping force in jigs and fixtures, preventing loosening over time.
Retains elasticity even after prolonged operation or repeated cycling.
Achieved Effect: High precision → No deformation → Stable long-term performance
→ It is installed beneath the bolt head or nut to maintain tightening force and prevent loosening.
Install with the curved side facing the load direction for optimal elasticity.
Select correct OD, ID, and thickness based on bolt and load requirements.
Avoid excessive compression that may reduce spring performance.
Choose suitable coating for humid, corrosive, or outdoor conditions.
Inspect preload regularly in machinery with continuous vibration.
The purpose is to apply elastic tension to maintain bolt tightness, prevent loosening, and improve overall mechanical stability.
A spring washer like the conical disc spring washer is used to absorb vibrations, maintain preload, and extend service life of shafts, bearings, and fastened components.
It goes between the bolt head or nut and the mounting surface to maintain constant pressure.
Yes. Its conical design and high hardness allow it to support higher axial loads compared with standard washers.
Yes. We offer customization for dimensions, material, hardness, and coating based on your technical requirements.
| Specification | Details |
| Outer Diameter (OD) | 1.7–28 mm |
| Inner Diameter (ID) | 0.83–20.5 mm |
| Thickness | 0.15–2.0 mm |
| Material | 65Mn / SK5 / SK7 |
| HRC | 43–50 |
Surface Treatment | Eco-friendly nickel, electroless nickel, blackening, zinc-nickel alloy |
Function | Generates torque within the shaft, significantly impacting its service life. |
Make it easy for customers to make shafts and apply them to more fields.
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