K Disc Springs

The important features of "K" disc springs is their shape of a simple ring. This ensures that the load which they apply to the bearing is distributed evenly around the bearing ring. Additional movement at constant load can be provided by arranging the springs in alternate direction (single series). Conversely additional load can be applied at constant spring deflection when springs are arranged to face the same direction (parallel stacking). As all springs are designed to have a highly regressive characteristic large (ho/t) spring load remains nearly constant for large spring deflection. This gives several advantages: The tolerances built up in the assembly can be accommodated without significant change in preload. Length variations through differential expansion can be accommodated. Any subsequent axial movement of the assembly does not alter the preload significantly. These are further advantages in addition to the elimination of original axial play.