About Us

Belleville International, LLC

We take great care in the production of HIGH QUALITY Belleville style disc springs and spring washers.  Our CUSTOMER SERVICE has earned the reputation of being the most dependable in the industry for on-time delivery.  Our ENGINEERING STAFF stands ready to assist you in recommending a standard part for your application or developing a new custom design.

All customer needs are equally important at our facility.  We give PRIORITY ATTENTION to projects needing a few or multiple thousands of Belleville’s.  We are proud to service a wide range of customers in many industries where the primary benefit of our product is PROVIDING THE GREATEST SPRING FORCE AVAILABLE IN THE LEAST AMOUNT OF DESIGN APPLICATION SPACE.

Our state-of-the-art equipment and streamlined manufacturing process, enables us to offer quick turnarounds on special prototypes designs.  We are always open to helping our customers with any prototypes that they may need manufactured.

We provide the following engineering assistance to our customers as part of our standard operations:

  • Design Troubleshooting
  • New Concept design help
  • Coil & Helical Spring Conversions
  • Operating temperature data
  • Caustic & Chemical resistance data
  • Load vs. Deflection Information
  • Various forms of product testing
  • Fast turnaround on prototype projects

If you have any questions/comments please fill out the form to the right and submit them to us.  If you are looking a quote on Belleville disc springs, follow the link on the bottom of the page that reads “Request A Quote” and fill out the information on our Specification Sheet to the best of your knowledge, and our sales and engineering staff will get started right on your quote.

We look forward to the opportunity to help you in anyway that we can.  If there are any other questions that you may have please contact Belleville International in Butler (near Pittsburgh).  We will be happy to further assist you.                                                             

                                                 800-899-9986

Our Services

We're on hand to serve your specific needs.

Here are some of our popular products.  Follow our website links at right to view our huge selection. 

H-13 Tool Steel
A chromium-molybdenum-vanadium hot work tool steel.
       
6150 Alloy Steel
A chromium-vanadium alloy steel that is strong and oil hardened.  It has good wear and abrasion resistance

301 Stainless Steel
An austenitic chromium-nickel stainless steel that is not hardenable by any heat treatment.

17-7 PH Stainless Steel
A chromium-nickel stainless steel.  It is capable of being precipitation hardened by a simple heat treatment. 
    
15-7 PH Stainless Steel
Essentially identical to 17-7 PH.  The one difference is that 2% of the chromium is replaced with 2% molybdenum.

Inconel 718
A corrosion resistant nickel-chromium alloy that is high strength and used at temperatures ranging from -330 to +1300 deg F.

Inconel X-750
A nickel-chromium alloy that is age-hardenable, very tough and non-magnetic.  It has  excellent endurance properties with great fatigue resistance.

410 Stainless Steel
A chromium-stainless steel of general utility-grade.

Carpenter 455 Stainless Steel
A stainless steel that successfully combines high tensile strength along with good cryogenic properties.

Other available materials (but not limited to):
     1074/1075 High Carbon Steel
     Hastelloy
     Waspaloy
     Titanium

Belleville International in Butler, PA

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