Encyclopedia of Spring Design
Includes the four volumes described below in a convenient binder. The encyclopedia is written for design engineers, as a practical guide to those responsible for designing springs. A sufficient amount of detail has been included so that those designers without access to a computerized program can generate an optimum solution to a spring design problem. Many designs do not perform well in service due to incomplete or unclear definition. The assumption is made throughout this encyclopedia that the designer knows the functional requirements of a spring, its space limitations, the environment in which it operates, its service requirements and any special considerations. Includes both U.S. and Metric units. Scroll down for complete descriptions of each volume. (Each book may also be purchased individually.)
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Fundamentals of Spring Design

A guide to the essential elements of spring design, this 100-page book includes sections on choosing spring configurations, terminology, stress, fatigue and reliability.
Table of Contents:
* Selecting Spring Configurations
* Glossary of Spring Terminology

Spring Materials
* Chemical and Physical Characteristics
* Elastic Modulus
* Magnetic Characteristics
* Heat Treatment of Springs
* Environmental Considerations
* Stress Relaxation
* Corrosion
* Spring Wire
* Cost and Availability
* Spring Strip
* Other Spring Materials
* Specifying Hardness

Spring Materials Cross Reference
* Glossary of Spring Wire Terms
* Summary Cross Reference of Spring Materials – Wire

Oil-Tempered Commercial Carbon and Alloy Spring Wires
* Cross Reference of Similar Specifications
* Residual Stresses
* Residual Stresses for Increased Load-Carrying Ability
* Residual Stresses for Increased Fatigue Strength

 Oil-Tempered Valve Spring Wires
* Cross Reference of Similar Specifications
* Tables of Specification Equivalents: Carbon Valve, Chrome Silicon Valve, Chrome Vanadium Valve, Modified Chrome Vanadium Valve

Hard-Drawn Carbon Commercial Quality Wires
* Cross Reference of Similar Specifications
* Tables of Specification Equivalents: HD Class 1, HD Class 2, High-Tensile HD, Music/Piano Wire, Piano Wire Valve

Stainless Steel Spring Wire
* Cross Reference of Similar Specifications
* Tables of Specification Equivalents: 302, 304, 305, 316, 321, 347, 631, XM-16, XM-28

Residual Stress, Fatigue and Reliability
* Residual Sresses
* Residual Sresses for Increased Load-Carrying Ability
* Residual Sresses for Increased Fatigue Strength
* Fatigue
* Reliability
* Reliability and Fatigue
* Reliability and Load Loss
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Compression, Extension, Torsion and Garter Springs

A guide for designing and specifying compression, extension, garter and torsion springs, this 54-page book addresses the most common issues associated with these types of springs.
Table of Contents:
Compression Springs
* Introduction
* Helical Compression Spring Terminology
* Spring Diameter
* Spring Index
* Free Length
* Type of Ends
* Number of Coils
* Solid Height
* Direction of Coiling
* Squareness and Parallelism
* Hysteresis
* Spring Rate
* Loads
* Buckling of Compression Springs
* Choice of Operating Stress – Static Conditions
* Choice of Operating Stress – Cyclic Applications
* Fatigue Life Estimation Example
* Dynamic Loading – Impact
* Dynamic Loading – Resonance
* Special Springs
* Rectangular Wire
* Stranded Wire Springs
* Variable Diameter Springs
* Variable Pitch
* Nested Compression Springs
* Commercial Tolerances
* Acceptable Quality Level (AQL)
* Packaging
* How to Specify
* Compression Spring Design Example
* Final Design Specification

Helical Extension Springs
* Introduction
* Initial Tension

 * Types of Ends
* Extension Spring Dimensions
* Design Equations
* Choice of Operating Stress - Static
* Choice of Operating Stress - Cyclic
* Clearances
* Tolerances
* How to Specify
* Extension Spring Design Example
* Final Design Specifications

Garter Springs
* Introduction
* Joint Design and Considerations
* Spring Rate
* Radial and Circumferential Load
* Initial Tension and Stress
* Stress
* Garter Spring Design Example
* Final Design Specifications

Torsion Springs
* Introduction
* Number of Turns
* Mean Diameter
* Length
* Spring Rate
* Stress
* End Configurations
* Choice of Operating Stress - Static
* Choice of Operating Stress - Cyclic
* Double Torsion Springs
* Rectangular Wire
* Tolerances
* How to Specify
* Design Example
* Final Design Specifications
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Other Types of Springs

This 66-page book discusses the key principles of designing and specifying specialized springs. These include: hot-wound springs; flat springs, volute springs and wire forms; power, constant-force and spiral springs; and retaining rings, Belleville spring washers and special spring washers.
Table of Contents:
Retaining Rings
* Introduction
* End Configurations
* Loads and Deflection
* Stress

Belleville Spring Washers
* Introduction
* Design Considerations
* Design Calculations
* Choice of Stress Level – Static
* Choice of Stress Level – Cyclic
* Stacks of Belleville Washers
* Tolerances
* How to Specify
* Belleville Spring Washer Design Example
* Final Design Specifications

Special Spring Washers
* Introduction
* Curved Washers
* Wave Washers
* Finger Washers
* Choice of Operating Stress – Static
* Choice of Operating Stress – Cyclic
* Tolerances
* How to Specify
* Special Spring Washer Design Example
* Final Design Specifications

Power Springs
* Introduction
* Design Considerations
* Flat Spring Design Example
* Final Design Specifications

Volute Springs
* Introduction
* Choice of Stress Level
* Design Equations

Wire Forms
* Introduction
* How to Specify

Hot-Wound Springs
* Introduction
* Special Design Considerations
* Materials

 * Choice of Stress Level
* Tolerances
* How to Specify
* Retaining Ring Design Example
* Final Design Specifications
* Design Equations
* How to Specify
* Power Spring Design Example
* Final Design Specifications

Constant Force Springs
* Introduction
* Extension Type
* Tolerances
* Motor Type
* Choice of Stress Level
* Tolerances
* How to Specify

Spiral Springs
* Introduction
* Hair Springs
* Choice of Stress Level
* Tolerances
* How to Specify
* Brush Spring Design Example

Flat Springs
* Introduction
* Design Considerations
* Design Equations
* Cantilever Springs
* Choice of Operating Stress
* Tolerances
* How to SpecifyChoices of Operating Stress for Hot-Wound Compression Springs
* Static Applications
* Cyclic Applications
* Tolerances
* How to Specify
* Hot-Wound Spring Design Example
* Final Design Specifications
* Height and Load Measurements
* End Construction
* Outside Diameter
* Supplementary Requirements: Load Rate, Shot Peening, Unground Ends
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Testing and Tolerancing

This 43-page book discusses the principles and procedures for testing springs, and provides guidelines for tolerancing. Includes both U.S. and Metric units.
Table of Contents:
Tolerances
* Introduction, warning
* Compression Spring Load Tolerances; Quality Grades
* Compression Spring Free Length Tolerances
* Extension Spring Load Tolerances; Quality Grades
* Extension Spring Free Length Tolerances
* Torsion Spring Load Tolerances (Torque); Quality Grades
* Tolerances for Hot-Coiled Springs
* Tolerances for Retaining Rings; Diameter Tolerances
* Tolerances for Belleville Washers
* Tolerances for Special Spring Washers
* Tolerances for Flat Springs

~ Guidelines for Spring Testing
Helical Compression Springs
* Purpose
* Scope
* General
* Workmanship: Surface, Burr, Ground Ends, Closed Ends
* Dimensions: Wire Diameter, Spring Diameter, Number of Coils, Squareness, Parallelism, Bow, Free Length
* Performance Characteristics: Load/Rate Testing, Fixtures, Buckling

 * Procedure for Load Testing: Stress Relaxation, Fatigue Life

Helical Extension Springs
* Purpose
* Scope
* General
* Workmanship: Burr, Surface, Tool Marks
* Dimensions: Special Terminology, Wire Diameter, Outside Diameter, Free Length, Number of Coils, Hook/Loops, End Relation, Pitch
* Performance Characteristics: Load/Rate, Initial Tension, Stress Relaxation, Fatigue Life

Helical Torsion Springs
* Purpose
* Scope
* General
* Workmanship: Burr, Surface, Shot Peening, Ends
* Dimensions: Wire Diameter, Spring Diameter, Number of Coils, Direction of Winding, End Relation, Length, Other Dimensions
* Performance Characteristics: Load/Moment/Rate Testing, Fixtures, Procedure for Load/Moment Testing
* Stress Relaxation
* Fatigue Life
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