TYPE	CONFIGURATION	ACTION
Helical Compression Round and Rectangular Wire		Push - wide load and deflection range - constant rate. Push - wide load and deflection range. Conical springs can be made with minimum solid height and with constant or increasing rate. Barrel, hourglass, and variable pitch springs used to minimize resonant surging and vibration.
Spring Washer Column 1: 1)Belleville 2)Wave 3)Slotted Column 2: 4)Finger 5)Curved		1) Push - high loads, low deflections - choice of rates (constant, increasing or decreasing) 2) Push - Light Loads, low deflection-uses limited radial space. 3) Push - Higher deflections than bellevilles. 4) Push - for axial loading of bearings. 5) Push - uesd to absorb axial end play.
Volute		Push - may have inherently high friction damping.
Beam 1) Cantilever, Retangular Section 2) Cantilever, Trapezoidal Section 3) Simple Beam	1 2 3	Push or pull - wide range of loads, low dflection range.
Helical Torsion Round or Rectangular Wire		Twist - constant rate.
Spiral 1) Hairspring 2) Brush	1 2	Twist Twist or Push
Constant Force Spring Motor Level Torque		Twist - exerts close-to-constant torque over many turns.
Helical Extension		Pull - wide load and deflection range - constant rate.
Drawbar		Pull - extension to a solid stop.
Constant Force		Pull - very long deflection at constant load or low rate.
Retaining Rings Round or Rectangular Wire		Pull or push - to resist axial loads.
Garter Springs 1) Extension 2) Compression	1 2	1) Pull with radial pressure. 2) Push with radial pressure.