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  • Leaf and Coil Spring Testing
    The debate over which is better between leaf springs and coil springs has a long history. Coil springs have been around for nearly a hundred years, yet the leaf spring's history dates back well over a thousand, so both have long proven their individual merits, but which is better will always
  • Voice Coil Motors
    in a solenoid device makes these difficult to control. The voice coil motor can develop force in either direction by reversing polarity of the excitation. In a solenoid, a spring is typically required to produce force in the return direction, this spring force subtracts from the magnetic force
  • Principles of Solenoid Coil Design for Valves
    is de-energized, the spring pushes the armature away from the face of the coil housing, and in consequence, any part attached to the armature through the opening in the coil cap also moves away from the coil. When the coil is energized, the armature is attracted to the coil housing, compressing
  • Overview of Compression and Extension Spring Tolerances
    Spring manufacturing, as any other production process, is not exact. It can be expected to produce variations in such spring characteristics as load, mean coil diameter, free length, and relationship of ends or hooks. The very nature of spring forms, materials, and standard manufacturing processes
  • Determining Right Hand or Left Hand Spring Wind Direction
    The direction of wind of a spring can be determined by simply holding it in your hand with your fingers placed around the outside of the body and your thumb pointing straight up. If the last coil ends in the same direction that your fingers are pointing, that is the hand (direction of wind
  • Wave Spring Application Infographic
    Wave springs feature an innovative design that can replace traditional coil springs.
  • Wave Spring Design Guide
    An introduction to Wave Springs and their advantages over conventional coil springs.
  • Designing with Smalley Wave Springs
    Smalley Wave Springs are a series of flat wire compression springs offering numerous functional advantages over traditional coil or compression springs. While providing the same force and deflection as a traditional coil spring, wave spring technology enhances load precision and cuts down
  • The Elastic Force Transducer
    determine the relationship between the deflection of a coil spring and the force which causes it. For example, when the fisherman hangs his catch on a fish scale, a heavy fish pulls the scale's hook down farther than a light one. Inside that fish scale is nothing more complicated than a coil spring
  • Quieting Impact and Vibration (.pdf)
    Spring technology for dampening is relatively old. Stagecoaches had leaf springs, early trains had large, crude, coil-spring buffers (to absorb shocks when cars bumped together) and early automobiles made use of simple springs for dampening as well. However, these early springs were roughly

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