===6.4.7 Contact Spring Calculations===
<figure id="fig:One side fixed contact bending spring">
[[File:One side fixed contact bending spring.jpg|right|thumb|One side fixed contact bending spring]]
Fig. 6.20:One side fixed contact bending spring<br />L = Length of spring<br />E = Modulus of elasticity<br />B = Width of spring<br />F = Spring force<br />D = Thickness of spring<br />x = Deflection<br /figure>max = maximum bending force The influence of the dimensions can be illustrated best by using the single side fixed beam model <xr id="fig:One side fixed contact bending spring"/> (Fig. 6.20). For small deflections the following equation is valid:
:<math>F = \frac {3 x E x J}{L^3} x</math>
