OEM Custom CNC Machined Belleville Washer Conical Spring Washer Disc Spring

描述

A Belleville washer , also known as a conical spring washer or disc spring , is a type of washer shaped like a conical disc. When compressed, it provides a high spring force in a small space, making it ideal for applications requiring strong, resilient load-bearing capabilities.

Key Features of Belleville Washers

1. Materials
Belleville washers are made from various materials depending on the application requirements:

Carbon Steel (e.g., AISI 1074, 1095) – Common for general-purpose use
Stainless Steel (e.g., AISI 301, 304, 316) – Corrosion-resistant for harsh environments
Alloy Steel (e.g., 51CrV4) – High strength and fatigue resistance
Inconel® (Nickel Alloys) – For high-temperature and corrosive environments
Phosphor Bronze – Non-magnetic and corrosion-resistant
Titanium – Lightweight with high strength

2. Surface Treatments

To enhance performance and durability, Belleville washers may undergo:

Zinc Plating – Improves corrosion resistance
Phosphate Coating – Enhances wear resistance and lubrication
Black Oxide – Provides mild corrosion resistance and aesthetic finish
Passivation (for Stainless Steel) – Removes free iron and improves corrosion resistance
Electropolishing – Smooths surfaces and improves corrosion resistance

3. Specifications

Belleville washers come in various sizes and specifications, including:

Outer Diameter (OD): Typically ranges from 3mm to 300mm
Inner Diameter (ID): Varies based on bolt or shaft size
Thickness: Usually between 0.2mm to 10mm
Load Capacity: Depends on material and dimensions (measured in Newtons or pounds-force)
Deflection Range: The amount of compression before reaching maximum load

4. Applications
Belleville washers are widely used in industries requiring high spring force in a compact space:

Automotive: Clutches, suspension systems, and brake assemblies
Aerospace: Engine components, landing gear, and fastening systems
Industrial Machinery: Valves, pumps, and heavy-duty bolted joints
Electrical & Electronics: Circuit breakers and contact pressure systems
Oil & Gas: High-pressure valves and drilling equipment
Rail & Transportation: Shock absorption and vibration damping

Advantages of Belleville Washers

✔ High Load Capacity – Can handle significant forces in a small space
✔ Space-Efficient – Compact compared to coil springs
✔ Adjustable Stiffness – Stacking multiple washers modifies load characteristics
✔ Long Service Life – Resistant to fatigue and deformation