Compression Springs
Made to "push" and can be designed to accommodate wide load and deflection ranges. Can be made with; round, square or even rectangular wire.
Barrel
Conical
Constant Pitch
Hourglass
Variable Pitch
Spring Washer
Belleville
Made to "push" high loads, low deflections. Rates can be constant, increasing or decreasing.
Wave
Made to "push light loads, low deflection. Uses limited radial space.
Slotted
Made to "push" with higher deflection (travel) than bellevilles.
Finger
Made to "push" for axial loading of bearings.
Curved
Made to "push" and used to absorb axial end play.
Beam
Made to "push" or "pull" a wide range of loads with minimal deflection.
Cantilever, Rectangular
Cantilever, Trapezoidal
Simple Beam / Bow Spring / Leaf Spring
Torsion
Made to "twist" at a constant rate.
Spiral
Hairspring
Made to "twist".
Brush
Made to "twist" or "push.
Power / Motor / Clock
Made to "twist" and exerts torque over many turns. Supplied in retainer. (bottom picture shows a power spring removed from its retainer)
Constant Force Spring Motor
Made to "twist" by exerting close-to-constant torque over many turns.
Extension
Made to "pull" wide load and deflection ranges.
Drawbar
Made to "pull" with a built-in stop (compression spring deflected to solid).
Constant Force
Made to "pull" for very long deflection applications at a constant load or rate.
Retaining Ring / Snap Ring
Made to "push" or "pull" (resist) axial loads like those created by power springs.
Garter
Extension
Made to "pull" with radial pressure.
Compression
Made to "push" with radial pressure.
