Mass (top)

$m_{\text{aaNR}}=3\text{kg}$

Mass (bottom)

$m_{\text{asNR}}=5\text{kg}$

Vertical stiffness

$c_{\text{azNR}}=2600\text{kN}/\text{mm}$

Horizontal stiffness

$c_{\text{ayNR}}=560\text{kN}/\text{mm}$

Axial stiffness

$c_{\text{axNR}}=560\text{kN}/\text{mm}$

Mechanical loss factor

$\tan {\delta }_{\text{aNR}}=0.04$