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  • Designer and Manufacturer of Precision Springs Since 1939

    Compression, Extension, Die Springs Thousands in Stock Today Quick Turnaround on Custom Orders

    DIAMOND WIRE SPRING COMPANY

    1-800-424-0500 Fax: 412-492-0106 catalog@stocksprings.com www.diamondwire.com

    STOCK SPRING CATALOG

  • COMBINING EXPERIENCE, ENGINEERING AND TECHNOLOGY

    With over 70 years of experience, Diamond Wire Spring Company has the knowledge and capabilities to meet your specifications and exceed your expectations. We are a leading designer and manufacturer of all types of coil springscompression, extension, torsion, die springsand wire forms. We take great pride in our ability to meet individual customer demands through uncompromising commitment to quality and fast delivery at competitive prices.

    All of our springs are made in our four U.S. manufacturing facilities. We are a worldwide supplier with more than 10,000 different springs available and 1.5 million parts in stock for a same-day shipment schedule so even your tightest deadlines will be met. We also provide customized components for specialty manufacturing needs; where we can manage release schedules on your Kanban or JIT blanket orders. Our onsite engineers will assist you with all aspects of design from the wide variety of raw materialslow carbon, high strength, high temperature alloy steelsthrough to end production and delivery, whether you are ordering one spring or one million springs. Customer drawings and specifications are reviewed for compliance with all requirements to ensure the spring we manufacture meets your needs.

    Another critical element of our success is performance. Because of our engineering experience and dedication to customer service, we are the spring supplier of choice for many demanding industriespower and energy, rail and transportation, actuators and valves, shock and vibration, drilling and mining, agricultural and off road, gas and steam, material handling, snow removal and medical. In both stock and custom orders, exceptional product consistency remains vital to the success of our customers and our success as their supplier.

    For a rapid response quote or to place an order, call 1-800-424-0500 or visit our website at www.diamondwire.com.

  • 1

    TABLE OF CONTENTS

    C U S T O M S P R I N G SPrompt Quotes - Fast Delivery

    Engineering Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

    Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

    General Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

    Specification Forms (Inquiry) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

    Conditions of Sale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

    Glossary of Spring Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

    S T O C K S P R I N G SPrompt Delivery From Stock

    Micro Precision Springs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

    Precision Springs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

    Compression Springs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

    Extension Springs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

    Snow Plow Springs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

    Die Springs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

    MIC

    RO

    S

    PR

    ING

    SP

    RE

    CIS

    ION

    S

    PR

    ING

    SE

    XT

    EN

    SIO

    N

    SP

    RIN

    GS

    CO

    MP

    RE

    SS

    ION

    S

    PR

    ING

    SD

    IE

    SP

    RIN

    GS

    FO

    RM

    SS

    NO

    W P

    LO

    W

    SP

    RIN

    GS

    1

    2

    2

    151

    157

    159

    3

    6

    31

    120

    141

    142

    CATALOG DIVISION GLENSHAW, PACALL US TOLL-FREE: 1-800-424-0500OUTSIDE U.S. AND CANADA: 412-492-8280FAX: (412) 492-0106EMAIL: catalog@stocksprings.com

    Or Call Our Manufacturing Facility Nearest You

    PITTSBURGH, PA (800) 816-5613 FAX (412) 821-2743TAYLORS, SC (800) 933-7774 FAX (864) 268-6705TYLER, TX (800) 938-3510 FAX (903) 581-6529

    E N G I N E E R I N G S E R V I C E F O R C U S T O M M A D E S P R I N G S

    Diamond has three facilities to manufacture custom springs. Therefore, if you do not find a stock spring to suit your needs, call our nearest plant for design assistance or photo copy, complete and fax the inquiry sheet found in the back of this catalog.

    Order OnlineVisit our website: www.diamondwire.com

    Diamond Wire Spring Company 1-800-424-0500 Fax: 412-492-0106 catalog@stocksprings.com www.diamondwire.com

  • 2

    INTRODUCTION

    G E N E R A L S P E C I F I C A T I O N S

    MaterialAll material up to .106 is Music. Wire over .106 is Oil Tempered. Stainless steel springs are available up to .135 wire. When stainless steel is used the value for Rate (R) and Load (P) must be corrected by multiplying by 0.833.

    FinishALL parts are plain finish. Zinc plate is available for an extra charge.

    Direction of WindRight Hand

    EndsCompression Springs - Ends squared and ground (Tolerance 3)

    Extension Springs - Full loops with/without opening.

    TolerancesTolerances are held closely to various sizes according to outside diameter and free length.

    LiabilityHaving no control over the use of the products in this catalog, all implied warranties of any type (including without limitation merchantability or of fitness for a particular purpose) are hereby disclaimed and excluded. In no event shall Diamond Wire Spring Company be liable for incidental or consequential damages or for loss of profits. Remedies are expressly limited to refund or replacement. Furthermore, all sales are subject to Diamond Wire Spring Companys standard Conditions of Sale, including without limitations, all disclaimers and exclusions of warranties, all limitations of damages and the limitation of remedies to refund or replacement.

    The Diamond Wire Spring Catalog offers its users an array of springs which can be used in all types of applications. Compression springs are carried in stock from .003 diameter wire to .625 wire and are wound with a pitch that will stand full deflection to solid height. Outside diameters are made according to different hole sizes and over different rod sizes. These springs are stocked/inventoried and ready for immediate shipment from our warehouse in Glenshaw, PA. When ordering, please ask for the stock spring department.

    N O T E S

    Spring rates, maximum loads and initial tension shown in catalog are for Music Wire and Oil Tempered Wire.

    COMPRESSION SPRINGS To find the load at any working length, when free length and rate are given, use the formula P= RxF. Where P is load in Lbs.; R is the rate in Lbs. per Inch; F is the deflection from free length. EXAMPLE: (DWC-020A-5) Given a free length of .625 and rate of 16.2 Pounds per inch, find the load at working length. P=16.2 x .125 2.0 Lbs.

    EXTENSION SPRING (refer to General Information. Page 120)

    DIE SPRING (refer to General Information. Page 142)

    Diamond Wire Spring Company 1-800-424-0500 Fax: 412-492-0106 catalog@stocksprings.com www.diamondwire.com

  • STOCK MICRO PRECISION SPRINGS316 Stainless SteelEnds Squared Not Ground

    MIC

    RO

    S

    PR

    ING

    S

    FREE LENGTH O.D.

    3Diamond Wire Spring Company 1-800-424-0500 Fax: 412-492-0106 catalog@stocksprings.com www.diamondwire.comPlease inquire if you need a size not listed above.

    DIAMOND WIRE SPRING STOCK NO.

    OUTSIDE DIAMETER

    TO WORK IN HOLE DIA.

    TO WORK OVER ROD

    DIA.

    WIRE DIAMETER

    APPROX. LOAD AT SOLID HT.

    FREE LENGTH

    SOLID HT.TOTAL

    DEFLECTIONSPRING

    RATEPRICE

    GROUP

    IN. IN. IN. IN. LB. IN. IN. IN. LB./IN.

    DWM-1

    0.025 0.031 0.016 0.003 0.051

    0.250 0.095 0.155 0.330 UDWM-2 0.281 0.107 0.174 0.290 UDWM-3 0.313 0.117 0.196 0.264 UDWM-4 0.344 0.129 0.215 0.238 UDWM-5 0.375 0.141 0.234 0.216 UDWM-6 0.406 0.150 0.256 0.202 UDWM-7 0.438 0.162 0.276 0.186 UDWM-8 0.469 0.174 0.295 0.173 UDWM-9 0.500 0.183 0.317 0.164 U

    DWM-10 0.531 0.195 0.336 0.153 UDWM-11 0.563 0.207 0.356 0.000 UDWM-12 0.594 0.216 0.378 0.138 UDWM-13 0.625 0.228 0.397 0.130 U

    DWM-14

    0.0375 0.047 0.023 0.