The Conical Washer is a high-strength, elastic fastener designed to provide stable preload, prevent loosening, and absorb vibrations in mechanical assemblies. Also known as a spring conical washer, conical disc spring washer, or Belleville conical spring washer, this washer delivers superior axial load in a compact design compared to flat washers. For applications requiring consistent torque and reliable fastening, the Conical Washer is an essential component in industrial, automotive, and precision machinery systems.
Manufactured using high-quality materials such as 65Mn, SK5, and SK7, the washer offers excellent elasticity, fatigue resistance, and long-term durability. With an outer diameter ranging from 1.7–28 mm, inner diameter 0.83–20.5 mm, and thickness 0.15–2.0 mm, it can accommodate a wide variety of bolts, shafts, and bearing systems. Optional surface treatments—including eco-friendly nickel, electroless nickel, blackening, and zinc-nickel alloy—provide superior corrosion resistance for demanding environments.
High Hardness & Elasticity: Heat-treated to HRC 43–50, ensuring stable spring force under heavy loads.
Wide Dimensional Range: OD 1.7–28 mm, ID 0.83–20.5 mm, thickness 0.15–2.0 mm.
Durable Materials: 65Mn, SK5, and SK7 deliver long-term fatigue resistance.
Multiple Surface Treatments: Eco-nickel, electroless nickel, blackening, zinc-nickel alloy for enhanced anti-corrosion performance.
High Axial Load: Conical design generates torque within shafts, improving stability and bearing life.
Vibration Resistance: Ideal for high-vibration machinery, automotive assemblies, and precision devices.
Suitable for applications requiring a conical lock washer or spring conical-washer solution.
Maintains consistent preload to prevent loosening under vibration or thermal expansion.
Compact design with strong load capacity compared to flat washers.
Enhances mechanical stability and shaft performance.
Long service life due to high fatigue resistance.
Corrosion-resistant options allow use in challenging environments.
Compatible with bolts, bearings, spindles, and high-precision assemblies.
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
A spring washer, such as a Conical Washer, is used to provide elastic tension to maintain bolt tightness, prevent loosening, absorb vibrations, and improve the lifespan and stability of mechanical 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. |
Install with the curved side facing the load direction for optimal spring effect.
Select the correct size (OD, ID, thickness) to match bolt and load requirements.
Avoid over-compression, which may reduce elasticity.
Choose appropriate surface treatment for corrosion-prone or outdoor environments.
Regularly inspect preload in high-vibration applications to ensure stability.
1. What is the purpose of a spring washer?
The purpose is to provide elastic force that maintains preload, prevents loosening, and absorbs vibrations in assemblies.
2. What is the use of spring washer?
A spring washer, like a Conical Washer, is used to stabilize bolts, shafts, and bearings, reduce loosening under vibration, and extend the service life of mechanical components.
3. Where does a spring washer go?
It is placed between the bolt head or nut and the mounting surface to maintain consistent tension.
4. Are Belleville conical spring washers suitable for heavy loads?
Yes, their conical shape and high hardness allow them to support higher axial loads compared with standard flat washers.
5. Can the conical washer be customized?
Yes, we support customization of dimensions, material, hardness, and surface treatment according to 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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