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Linear wave spring

Product Description

Linear wave spring expanders Carbon steel or Stainless Steel


Linear wave spring is a continuous wave forming of the shape a longstrip springs. As a load bearing device have roughly the same loadand deflection characteristics.

Compared with stamping wave spring, linear wave spring use pre-tempered raw materials and rounded edges, and the load and elastic coefficient are more accurate and predictable, 50% better than stamping parts, and the elastic coefficient is stable within the allowable deformation range.

Linear wave spring has high reliability, excellent performance, no deformation, smooth surface, no pits, scratches, breaks and other small defects. Stamped wave spring may have defects such as fatigue fracture and inaccurate loading in the subsequent manufacturing process. In terms of metallurgy, mechanical properties and dimensional stability, linear wave spring can provide higher precision quality.

Linear wave spring is used to replace traditional round wire spring with their unique space-saving potential. The use of wave spring also indirectly reduces the spring assembly space due to the reduced working height of the spring. Smaller installation size and less material application result in a significant cost reduction.

Linear wave spring is particularly suitable for applications requiring weight reduction and applications limited by a small installation space. Typical application areas include: aerospace, precision machinery, hydraulic seals, and high-end motors.

Comparing stainless steel wave spring and carbon steel wave spring:

1. Different material composition.
The main disadvantage of carbon steel wave spring is that it is easy to rust, especially in high temperature and high humidity environment. Once rusted, the metal structure of the material corrodes, causing the material to deform and break. Therefore, if the ambient temperature and humidity of the product are high, stainless steel wave spring should be selected.
2. The production process is different.
The production process of carbon steel material is to obtain the high hardness of the spring produced by the low hardness base material through quenching and tempering. This process results in poor toughness and low service life of carbon steel materials, and the phenomenon of overall spring fracture in practical applications. The stainless steel material is obtained by several calendering by a low hardness base metal mill.
3. Material price difference.
Since the stainless steel wave spring material has a chromium content of 16-18% and a nickel content of 6%-8%, the price is 2-3 times more expensive than carbon steel. The same specification of spring, stainless steel wave spring will be about 2 times more expensive than carbon steel wave spring.
The spring force of stainless steel spring is lower than that of carbon steel spring, the hardness is lower than that of carbon steel wire, but the service life is long; carbon steel spring wire is easier to rust than stainless steel spring wire, and has higher requirements for the use environment.

Surface treatment of wave springs:

There are several common methods for surface treatment of wave springs, such as bluing, phosphating, electroplating, and electrophoresis.

Oxidation: Heat the wave spring to an appropriate temperature in air or chemicals to form a blue (or black) oxide film on the surface to improve the corrosion resistance and appearance of the wave spring.

Blackening: The same as the oxidation principle, the wave spring is heated in the air or directly immersed in a concentrated oxidizing solution to produce a very thin oxide film on the surface of the wave spring. Material protection technology.

The surface of the wave spring should be smooth, no rust, no burrs, no cracks and a uniform oxide layer.

Lisheng is a professional linear wave spring wholesaler, you are welcome to come to consult.

Materials Available

OIL TEMPERED(SAE1070-1090), HARD DRAWN SAE 1060 – 1075, stainless steel 304,316,631, 17-7PH(SUS), beryllium copper, phosphor copper, 65Mn, A-286, Inconel Alloy X-750, X-718, Elgiloy, MONEL K-500, MONEL 400 etc.

Processing Steps

Design →Drawing→ Flat the wire → CNC Machining → Heat treatment → Surface → Finishing → Quality Inspection → Packing


Part Number LLS12188-1 LLS12188-2 LLS12188-3 LLS12188-4 LLS12250-1 LLS12250-2 LLS12250-3 LLS12250-4
Number of Waves 1 2 3 4 1 2 3 4
0.012 0.012 0.012 0.012 0.012 0.012 0.012 0.012
0.188 0.188 0.188 0.188 0.25 0.25 0.25 0.25
1.5 3 4.5 6 1.5 3 4.5 6
Free Height
0.225 0.225 0.225 0.225 0.225 0.225 0.225 0.225
1.5 5.6 10.4 14.8 2.2 7.8 13.9 19.8
Work Height
0.125 0.125 0.125 0.125 0.125 0.125 0.125 0.125
Spring Rate
11 91 136 182 15 121 181 242

Wave spring measurements: