FAN DISC
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    • Precision Belleville Springs >
      • .236 to .394
      • .472 to .492
      • .551 to .591
      • .630 to .709
      • .787 to .886
      • .906 to .984
      • 1.100
      • 1.240 to 1.340
      • 1.400 to 1.770
      • 1.970
      • 2.200 to 2.360
      • 2.480 to 2.800
      • 3.150 to 3.540
      • 3.940 to 4.410
      • 4.920
      • 5.510 to 7.090
      • 7.870
      • 8.860 to 9.840
    • AI Springs >
      • AI .187 to .950
      • AI 1.000 to 1.750
      • AI 2.000 to 2.500
    • SP Belleville Springs >
      • SP .197 to .945
      • SP 1.142 to 3.031
    • CONTACT Disc Springs >
      • CONTACT Narrow
      • CONTACT Regular
      • CONTACT Wide
    • K Disc Springs >
      • Metric for K
      • Inch for K
    • FL Disc Springs >
      • Metric for FL
      • Inch for FL
  • Special Springs
  • Spring Design
    • Tolerances >
      • for Thickness
      • Overall Height
      • Hardness Range
      • OD + ID Guide Clearance
      • OD + ID Tolerance
      • Load Tolerance
    • Load Calculations >
      • Nomenclature
      • Load in Lbs
      • True Radius Factor
      • Corner Radius Factor
      • True Cone Height Factor
      • Flattening at Edge Factor
      • Precise Load Computing
    • About >
      • Contact Us
      • News Releases >
        • Fan Disc Second Patent
        • JPL Selects Fan Disc
        • Fan Disc Wins Patent
    • Load and Stress Calculations
    • Dynamic Loading
    • Materials Properties
    • Tightening Torque Values
    • Typical Disc Spring Apps
  • Site Map

​Manufacturer of Belleville and Disc springs 

REQUEST A QUOTE

Select a Precision Spring

precision belleville springs
Need a Part Number? Select your disc spring for the job from our tables.
​
  • Precision Belleville Springs
  • AI Pre-Stressed Disc Springs for Bolted  Sections
  • Series SP Belleville Springs for Heavy Bolted Sections
  • Contact Belleville Springs for Electrical Applications
  • Series K Disc Springs for use with Ball Bearings
  • Series FL Disc Springs for Flange Applications​


Large Diameters & Special Materials

large diameter disc springs
Disc springs are available in very large diameters up to 1000mm OD (40" O.D.). Special material, such as high nickel maraging steels for high temperatures on corrosive resistance applications, can be obtained. Our disc springs are used in special nuclear applications. Additional sophisticated disc springs have been designed and manufactured for the following:
  • Power generators
  • Turbines
  • Petrochemical pumps and valves
  • Sonar detection systems
  • Pipe support systems
  • Automatic actuators
  • and a variety of other engineering applications​​


Spring design

Knowledge is power. Learn design details right here.
  • Disc Spring TOLERANCES
  • Disc Spring LOAD Calculations
  • Load and Stress Calculations
  • Dynamic Loading
  • Disc Spring Materials Chemical/Physical Properties
  • Suggested Tightening Torque Values
    (To Produce Corresponding Bolt Clamp Loads)
  • Typical Disc Spring Applications​
​The proper use of disc springs as a modern design element permits substantial economies by size reduction and maximum utilization of energy and space.
disc spring tolerances

​What We Do

disc spring applications
Disc springs are precision belleville springs made of high carbon spring steel, alloy steel, stainless, and heat resisting steels and non-ferrous materials. Conical in shape and made to special geometrical relationships of OD,ID, thickness, and height, they are subject to exacting manufacturing and quality control standards. Material used are generally in annealed condition and hardened to range of RC44-51 depending on material thickness used. Load/deflection relationships are closely controlled. Disc springs are made of cold rolled strip, hot rolled sheet, or forgings of flat or conical shape. After the spring is formed by stamping, it may be machined at the inner and outer diameters or on all surfaces. 

When properly designed and used, disc springs have a long life, superior performance, and may result in significant cost reduction.

Typical disc spring applications are as follows:
  • Power transmission components such as clutches, brakes, transmissions, etc.
  • Valves, piping and drilling tools.
  • Screwed or bolted sections.
  • Bearing preload.
  • Hoists, cranes and heavy engineering applications.
  • Electrical switch gear and bus bars.
​
Read more...

pRESS RELEASES

FAN DISC CORP RECEIVES SECOND U.S. PATENT ON A BELLEVILLE WASHER IN 40 YEARS. U.S. Patent office grants second patent in U.S. on a Belleville washer in 40 years to Fan Disc Corp! (April 2007)​​

JPL SELECTS FAN DISC CORP FOR HIGH TECH APPLICATION Fan Disc Corp. announces a Major supply contract with Jet Propulsion Laboratories (JPL). (April 2003) ​

FAN DISC CORP WINS PATENT U.S. Patent office grants first patent in U.S. on Belleville washer in 30 years to Fan Disc Corp! (March 1999)

wE SPECIALIZE IN

• Large Diameter Springs
• Special Material Springs
​• Farm Implements
• Electrical Industry Applications
• Automotive
• Bus Bar Joints Transformers
Unsurpassed Quality!

Who We Are

Founded in 1966, Fan Disc Corporation was the first known U.S. firm to begin manufacture of a full program of standardized "DIN" disc springs made available from stock. EN 16983 (DIN 2093) Standards

We manufacture and stock the entire DIN range from 6mm OD through 260mm OD. We also make many special sizes to customer drawings and have made springs with OD to 40"(1000mm). Materials generally employed are C1075, SAE6150, Stainless 1717PH(AMRCO), Inconel X718, and Monels.

Fan Disc Corporation manufactures a wide range of belleville and disc springs products in our modern, 100,000 square foot, fully equipped office and manufacturing facility, located adjacent to the Burbank Airport on a 100 acre industrial site.

Fan Disc is recognized as a leading design and application company in the field, and was selected by PD&D magazine for PRODUCT OF THE YEAR 2000. Fan Disc is ISO 9001:2015 certified.

Read more ...

benefits

​Our products are broadly applicable: They improve the performance and reliability of all kinds of products. How can Fan Disc Corporation products improve your product? Here is a partial list:

More Machine Uptime
Can you afford down-time due to failure of a spring or washer? Why take a chance on low quality parts? Go with a vendor dedicated to higher reliability - Fan Disc Corporation

Reduced Costs
We optimize the design of springs through several strategies, including patented design techniques. By choosing a spring or washer that exactly matches your application, you save money. You could be wasting money working around an existing spring or washers deficiency. Talk to our staff about your needs. Let us quote your job!

Consistent, High-Quality Results
We have automated and fine-tuned our process, assuring that each spring or washer is made with the best possible parameters.

ISO 9001:2015 Certified
We record machine events and errors, both improving operator awareness in real-time, and providing long-term quality. We are proud to offer products MADE IN THE USA.
iso 9001:2015 certified

Home | Spring Selection | Special Springs | Spring DESIGN | About | Request Quote

FAN DISC CORPORATION
​8127 Clybourn Avenue
Sun Valley CA 91352
Tel (818) 767-1886
Fax (818) 767-7415
​www.fandisc.com
info@fandisc.com
Picture
​ISO 9001:2015 Certified
Copyright ©2020-2023 Fan Disc Corporation • Privacy Policy • Site Map
  • Home
  • Spring Selection
    • Precision Belleville Springs >
      • .236 to .394
      • .472 to .492
      • .551 to .591
      • .630 to .709
      • .787 to .886
      • .906 to .984
      • 1.100
      • 1.240 to 1.340
      • 1.400 to 1.770
      • 1.970
      • 2.200 to 2.360
      • 2.480 to 2.800
      • 3.150 to 3.540
      • 3.940 to 4.410
      • 4.920
      • 5.510 to 7.090
      • 7.870
      • 8.860 to 9.840
    • AI Springs >
      • AI .187 to .950
      • AI 1.000 to 1.750
      • AI 2.000 to 2.500
    • SP Belleville Springs >
      • SP .197 to .945
      • SP 1.142 to 3.031
    • CONTACT Disc Springs >
      • CONTACT Narrow
      • CONTACT Regular
      • CONTACT Wide
    • K Disc Springs >
      • Metric for K
      • Inch for K
    • FL Disc Springs >
      • Metric for FL
      • Inch for FL
  • Special Springs
  • Spring Design
    • Tolerances >
      • for Thickness
      • Overall Height
      • Hardness Range
      • OD + ID Guide Clearance
      • OD + ID Tolerance
      • Load Tolerance
    • Load Calculations >
      • Nomenclature
      • Load in Lbs
      • True Radius Factor
      • Corner Radius Factor
      • True Cone Height Factor
      • Flattening at Edge Factor
      • Precise Load Computing
    • About >
      • Contact Us
      • News Releases >
        • Fan Disc Second Patent
        • JPL Selects Fan Disc
        • Fan Disc Wins Patent
    • Load and Stress Calculations
    • Dynamic Loading
    • Materials Properties
    • Tightening Torque Values
    • Typical Disc Spring Apps
  • Site Map