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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
  • How To Use Coil Springs
  • Wave Spring Design Guide
    An introduction to Wave Springs and their advantages over conventional coil springs.
  • Tolerancing helical springs
    the springs have no control over raw-material properties so they must compensate for the variations during manufacturing. Most spring-coiler machines, notably compression-spring formers, use standard tooling to vary factors such as coil count, pitch, body diameter, and wire feed. Typically, spring rate (lb
  • Software for designing springs
    design conditions. Variable inputs for a compression spring appear in the window to the right. Outputs are in the fields on the left. Definitions of spring variables with descriptive images would be a useful addition to the input window. Ballpoint pens, for example, use coil springs while battery
  • 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
  • Rotating unions in the coil winding sector
    Rotating unions in the coil winding sector. What do soft quality steels for deep drawing, high-strength constructional steels, steels for tinplate cans, stamped parts and pressed parts for vehicles, packaging strips and springs, and electric parts or tubes/pipes have in common?. They were all strip
  • 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

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