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Schnorr Disc Springs

Disc Spring Engineering
Maximum load - minimum space - maximum flexibility


All springs experience a loss of load or relaxation in the course of time, which is primarily dependent on the occurring stress and the temperature-time curve.

For disc springs the stress distribution in the cross-section also plays a role determined by the dimensional relationships δ and ho/t. The relaxation can therefore be related to stress µOM, because it best reflects all other influences. Depending on the installation situation, the load loss may occur as creeping or relaxation. Creeping is described as a loss of length Δl which the spring suffers under a constant load F, and relaxation as a loss in load Δ F if the spring is installed at a constant length l.

Approximate values for the permissible relaxation of disc springs under static loads are provided in figure 29 and 30.

If working temperatures above 100oC occur, we recommend you contact us. 

Figure 29 - click to enlarge

Figure 30 - click to enlarge 


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