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Products > Spring Products

Micro Springs: Extension

Micro extension springs absorb and store energy by offering resistance to a pulling force and a variety of ends may be used to attach the spring to the source of that force. We have included a work sheet that you may download as a guide in specifying your design characteristics.  We would like to offer our assistance in this process.  Please call us and we would be happy to confirm your design and provide an analysis through SMI software.

  • Spring Indexes between 2.5 and 75 (spring index = mean coil diameter / wire diameter)

Extension Spring Spring work sheet down load.