Custom Belleville Washers
Engineered for Precision Loads, Limited Space & Demanding Environments
When off-the-shelf Belleville washers fall short, Solon delivers fully custom-engineered disc spring solutions designed around your exact performance requirements. As a trusted manufacturer of high-performance spring components, Solon specializes in custom Belleville washers engineered for specific load curves, space constraints, and operating environments.Contact us for more information regarding our custom spring washers, or locate a distributor. We welcome the opportunity to provide a quote for your custom part. Please submit your drawing to our engineering team!
Belleville Washer – Engineered Custom Design
At Solon, custom Belleville washers begin with collaboration. Our experienced engineers work directly with your design team to understand:- Required load and deflection characteristics
- Available installation space and stack configurations
- Operating temperatures, vibration, and fatigue demands
- Environmental exposure (corrosion, chemicals, moisture)
Whether you provide detailed drawings or prefer to discuss functional requirements, our team translates performance goals into optimized washer geometry and material selection. The result is a disc spring solution that performs consistently over its service life.
Custom Sizes, Thicknesses & Load Profiles
Solon manufactures Belleville custom spring washers to precise specifications, including:
- Custom outside and inside diameters
- Controlled thickness and cone height
- Single or stacked washer configurations
- Tailored spring rates and load-deflection curves
This flexibility allows engineers to fine-tune preload, compensate for thermal expansion, manage vibration, or maintain clamp load in compact assemblies where traditional springs are impractical.
High-Performance Materials for Demanding Applications
Material selection is critical to the performance of Belleville washers. Solon offers a broad range of high-performance alloys selected to meet mechanical, thermal, and environmental demands, including options for:
- High-cycle fatigue resistance
- Elevated or cryogenic temperatures
- Corrosive or chemically aggressive environments
- Long-term load retention
Our engineering team helps determine the ideal material based on stress levels, temperature exposure, and service life expectations.
Specialized Finishes & Compliance Capabilities
To further enhance performance and durability, Solon provides a range of finishing and coating options, specified or customized to meet application requirements such as corrosion resistance, friction control, or vibration damping. Available finishes are designed to support RoHS compliance, AMS specifications, corrosion protection, improved wear or fatigue performance, while providing chemical resistance. Finish options include:| Finish | Description |
| BOOC | Finish: black oxide per AMS 2485K |
| G321A | Finish: Geomet 321 A |
| ZN | Mechanically zinc plated with clear trivalent chromate (ASTM B695, Class 12), RoHS compliant |
| NF | Finish: plain finish, dry |
| NFOC | Finish: plain with oil, RoHS compliant |
| N | Finish: sulfamate nickel plated for added corrosion protection per AMS 2424E |
| PSVT | Finish: passivated to ASTM A967 |
| Shot | Shot peened to AMS-S-13165 |
| YC Non-ROH | Finish: mechanically zinc plated with yellow hexavalent chromate (ASTM B695, class 12, type II) |
| YC | Finish: mechanically zinc plated with yellow trivalent chromate (ASTM B695, class 12, type I, yellow chromate), RoHS compliant |
| ZP | Finish: zinc phosphate and oil, RoHS compliant |
Custom Belleville Washers - Built for OEMs, Engineers & Critical Applications
Solon’s custom Belleville washers are used across demanding industries where precision and reliability are non-negotiable, including industrial equipment, aerospace, energy, defense, and heavy manufacturing. Our vertically integrated manufacturing capabilities ensure tight tolerances, repeatable quality, and dependable lead times—even for complex or high-performance designs.
Why Choose Solon Manufacturing for Your Custom Belleville Spring Washer Needs?
When purchasing custom washers, we understand you have many options. At Solon Manufacturing, we welcome the competition. That’s why our products are backed with over 70 years of proven success. Other reasons to choose Solon Manufacturing for your custom Belleville spring washer needs include:
- Our knowledgeable engineering team offers continued support and product recommendations
- High-volume and customized orders to distributors and OEMs worldwide
- Vertically integrated manufacturing approach to meet product specifications
- Quick turnarounds on standard and custom orders
- All products are manufactured in the USA