Description
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.
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