The conical mount consists of a conical outer part with a mounting flange, an interior rubber part and a conical inner part made of steel. The outer part often has the form of a deep-drawn sheet-metal pot.
The conical mount is very stiff in two spacial directions because the rubber body is subjected to high pressure. In the third direction, the mount is substantially softer. Depending upon requirements, cavities or kidney-shaped holes can be placed in the rubber body. The spring stiffness in a radial direction can thereby be designed independent of the spring stiffness perpendicular to it.
Prestressing is generally applied by the dead weight of the object to be mounted.