Main Phone: 1-724-295-5111 or Toll Free: 1-800-245-3600
Emergency Services Available - Call Frank(Head of Sales ) at 724-448-8407 Or Bernie (Head of Engineering) 724-448-4745
For all Customer Services Inquiries - Call Frank at 1-724-448-8407 or ask for Frank at 1-800-245-3600

The largest Belleville Disc Spring manufacturer in the world. Order direct from us!

Welcome to Key Bellevilles!

Established in 1967, Key Bellevilles Inc. is located in Leechburg, Pennsylvania (25 miles northeast of Pittsburgh). Key Bellevilles Inc. stretches over 200 acres and operates a 88,000 square ft. state of the art facility. We specialize in the design, manufacture, and distribution of high quality belleville disc springs servicing customers worldwide.

Our products

Why choose us?

We are the experts the ultimate authority on Belleville disc springs aka Belleville washers! Since 1967, Key Bellevilles Inc. offers almost 50 years of experience.
We are the best at designing and manufacturing Belleville springs. Our springs are manufactured in the United States but we have customers in over 100 countries. Here is why!

Industries we serve

Meet the Founder

Robert J. Key was the Owner and Founder of Key Bellevilles, Inc. He was a graduate of Dickinson College with a Juris Doctorate degree from Dickinson Law School in Carlisle, Pennsylvania. He resided and practiced law in Allegheny Township, Westmoreland County, Pennsylvania. 

In 1967, he purchased Ohio Speciality Springs, a division of Handy and Harman located in Cleveland, Ohio. 

In 1969, Mr. Key moved the company to a new industrial park in Allegheny Township, Westmoreland County, Pennsylvania, to manufacture Belleville springs exclusively. 

Mr. Key was a pilot and owner of a single engine (Cessna 210). He visited companies with the use of his plane for sales and was able to personally visit many manufacturers in North America. The company has grown since 1967 to become a manufacturer of Bellevilles all over the world.

After our 50th anniversary in 2017, Mr. Key had grown Key Bellevilles into one of the top companies of bellevilles internationally and domestically. It continues to grow after his passing in 2021. 

The foundation of his company continues to be run by Mr. Key’s wife, CEO/Owner, Patty Key, with the experience and knowledge of his family members and employees.

We follow his philosophy, “If you really want to do something, you will find a way; if you don’t, you will find an excuse.” (anonymous)