Diseño y cálculos

Dishing is the axial twisting or bending deformation of the ring when subjected to high thrust loads, usually occurring when the groove wall yields or collapses.

Soft groove materials yield or deform at lower loads, causing the ring to dish or tilt under thrust, leading to premature assembly failure. Groove capacity must be downgraded.

Ring shear is calculated using the formula: PR = (pi * d * t * S_s) / FOS, where d is ring diameter, t is thickness, S_s is material shear strength, and FOS is safety factor.

A large radius or chamfer on the groove corner reduces effective wall contact area, significantly lowering the overall thrust capacity. Grooves should have sharp corners.

Groove depth must match catalog specifications precisely, typically calculated to ensure adequate ring engagement while maintaining the structural integrity of the shaft/housing.

Thrust capacity is limited by two main factors: the shear strength of the ring itself and the yield strength of the groove material (groove deformation).

Unlike stamped washers, edgewise coiled wave springs do not require custom stamping dies, making prototyping and low-volume custom configurations highly cost-effective.

Uniform wave spacing is critical. Imperfections or unequal wave heights lead to non-uniform load distribution, localized stress concentration, and premature fatigue failure.

Plain ends create localized point loads that can score, gall, or wear down soft metals like aluminum or plastic over repeated cycles. Shim ends should be specified for soft housings.

At high temperatures, both the physical dimensions expand and the material modulus drops. Clearances must be adjusted to prevent binding inside the bore due to thermal growth.

A nested spring provides an extremely steep, linear load-deflection curve, enabling high force delivery within a highly compressed, compact operating zone.

Yes, but shock loading drastically accelerates fatigue. Incorporating a higher safety factor, dampening mechanisms, or utilizing nested designs helps mitigate impact stresses.

The natural frequency depends on the spring rate and the active mass of the spring itself, following standard harmonic oscillator principles adjusted for multi-wave geometries.

Ensure the natural frequency of the wave spring is significantly higher than the operating frequency of the system (typically by a factor of 13 or more) to prevent destructive resonance.

The modulus of elasticity defines material stiffness. Higher E-values (like carbon steel) yield higher spring rates compared to materials with lower E-values (like bronze or titanium) under identical geometry.

Total safe deflection is directly proportional to the number of turns. Doubling the number of turns doubles the deflection capacity for the same load, while halving the overall spring rate.

Wave springs primarily resist axial loads. Radial or torsional loading must be managed by alternative guide mechanisms, as they can cause wave misalignment.

Setting is the permanent plastic deformation that occurs when the structural material stress exceeds its proportional limit during compression, leading to a permanent reduction in free height.

Operating stress is determined using bending formulas for curved beams, factoring in the applied bending moment at the wave crests, wire cross-section geometry, and curvature correction factors.

The spring rate scales linearly with the width of the wire. Wider wire increases the stiffness and maximum load capability but limits radial clearance.