Spiral Retaining Rings & Wave Springs - Bearing Engineers, Inc.

WAVE SPRING INTRODUCTION
SPRINGS
WAVE SPRING TYPES (cont’d)
CREST-TO-CREST ® WITH OPTIONAL SHIM ENDS
Crest-to-Crest Wave Springs are also available with squared-shim ends. Shim ends
provide a 360˚ contact surface when compared to the wave point contact of plain
ends. The shim-ends under load, more evenly distribute the springs force upon
adjacent components. This feature is similar to the concept of double-disc grinding
springs for a flat surface. Shim ends have also been used to affix springs to mating
components, as a flat locating surface that may be attached by various methods in
the assembly.
WAVO ®
NESTED
Wavo Springs are produced from round-section wire to provide
higher loads while maintaining the accurate loading found in wave
springs. As an alternative to Belleville Springs, the Wavo provides
similar loads but with an accurate, predictable spring rate.
Nested Wave Springs are pre-stacked in parallel from one
continuous filament of flat wire. The need to stack individual
springs for higher loads is no longer necessary. Nested springs
result in a spring rate that increases proportionately to the
number of turns. They can exert tremendous forces, yet maintain
the precision of a circular-grain wave spring. In many
applications, Nested Wave Springs replace Belleville Springs,
particularly in cases where a high but accurate force is needed.
LINEAR EXPANDERS
Linear expanders are a continuous wave formed (marcelled)
wire length produce from spring tempered materials. They
act as a load bearing device having approximately the same
load/deflection characteristics as a wave spring.
Forces act axially or radially depending on the installed
position. Axial pressure is obtained by lying the expander flat
in a straight line. Circular wrapping the expander produces a
radial force or outward pressure. Linear expanders are
available cut to length or as a continuous coil, for the user to
cut as needed.
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