Ready Technology, Inc.
Ready Technology, Inc.
333 Progress Road
Dayton, OH 45449
Phone: 800-543-4355
Fax: 937-866-7226
Email: sales@readytechnology.com
Website: www.readytechnology.com
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Vacuum degassed, valve spring quality alloy steel

Four Load Classes, Guaranteed Fit, Fully Interchangeable

More than 400 SuperSprings® are available in four color-coded load classifications. Uniform lengths and diameters provide full interchangeability between load ratings. Spring diameters are guaranteed to fit in the hole and over the rod diameters listed in the dimensional data. Lengths, diameters, rates, and colors are in accordance with ISO 10243.
Unit of Measure

Pricing

Availability

 N/A =CASE WHEN {Quantity} IS NULL THEN NULL WHEN {Inventory}>{Quantity} THEN 'IN STOCK' WHEN {Inventory}>0 AND {Inventory}<{Quantity} THEN 'NOT ENOUGH IN STOCK, CHOOSE LOWER QUANTITY' ELSE 'OUT OF STOCK' END=

Specifications

Brands

 N/A Ready

Color

 N/A Blue

Body Cross Section

 N/A Rectangular

Spring Material

 N/A Alloy Steel

Load Required to Deflect 1/10 Inch (in) Compression

 N/A 93.7 lb

Spring Features

 N/A Rectangular Wire

Industry Standards/Certifications

 N/A International Organization for Standardization (ISO 10243)

Load Required to Deflect 1 Millimeter (mm) Compression

 N/A 16.4 daN

Box Quantity

 N/A 12

Equivalent Part Numbers

 N/A 304920D 9 4020 21 9402021 9-4020-21

Product Code

 N/A SP

Additional Information

Additional Information

 N/A
  • Engineered for High Performance and Long Service Life
    Each SuperSpring® has the optimum design, pitch, and metallurgical content for efficient performance. Rectangular wire springs are made from a trapezoidal cross section wire, which changes to a "D" cross section during coiling. This shape results in a lower maximum stress level, substantially contributing to longer spring life.
    Ready applies several advanced manufacturing processes to enhance the life of SuperSprings®. These include precision heat treating, shot peening to reduce mechanical stresses, and presetting by compressing to solid for increased set resistance and greatest resistance to fatigue.
  • Dependable Performance Is Quality-Assured
    SuperSprings® are manufactured exclusively from vacuum degassed, valve spring quality alloy steel. State-of-the-art equipment, including CNC coiling and grinding, is employed to achieve consistent dimensional accuracy within narrowest tolerances. Each production run is thoroughly inspected and documented to maintain strict quality. The result is a die spring of unsurpassed quality which many of the world's most demanding users specify for long, dependable performance.

Dimensions

Hole Diameter (A)

 N/A 2 1/2 in63 mm

Rod Diameter (B)

 N/A 1 1/2 in38 mm

Free Length

 N/A 5 in127 mm

Load - Deflection Table

Total Travel to Solid Load

 N/A 2066 lb920 daN

Total Travel to Solid Deflection

 N/A 2.20 in56 mm

Total Recommended Load for Long Life (25 Percent of C)

 N/A 1171 lb521 daN

Total Recommended Deflection for Long Life (25 Percent of C)

 N/A 1.25 in32 mm

Total Recommended Load for Average Life (30 Percent of C)

 N/A 1406 lb626 daN

Total Recommended Deflection for Average Life (30 Percent of C)

 N/A 1.50 in38 mm

Maximum Operating Load (37.5 Percent of C)

 N/A 1757 lb782 daN

Maximum Deflection Load (37.5 Percent of C)

 N/A 1.88 in48 mm