Posted on: May 23rd, 2017 by Lee Gorman

Rubber Design Conical Mounts 


Rubber Design Conical Mounts from Soundown are designed to provide high deflections with a long service life. In both the vertical and horizontal axes, the transfer function of the mounts is in the range of 12 dB/octave, known as "ideal mass-less spring characteristics."

Originally designed for medium speed diesels, these mounts are now used in a wide range of machinery applications, including marine diesel engines, generators, pumps, and exhaust equipment. RD Conical Mounts also are used to isolate vessel components, such as deck houses, control rooms, and passenger cabins. 

The characteristics of the mounting are provided by a conical rubber element designed to carry the vertical load in a combination of compression and shear. The rubber elements for the mountings are produced in several types. Type RD 113, 114, 214, 314, and 414 are produced with extra interleaf rings, and type RD 115, 215, 315, and 415 without extra interleaf rings. The rubber elements are manufactured in six "standard" rubber mixes: 45NR, 50NR, 55NR, 60NR, 65NR, and 70NR, and consequently cover a wide range of load / deflection requirements. They are applicable up to 70°C continuous and 90°C peak temperatures. Next to that, for the high temperatures applications, there are special developed compounds for 90°C continuous and 110°C peak temperature, and 110°C continuous and 130°C peak temperature are available in the above-mentioned Shore hardness.

All 110, 200, and 300 series mounts are available in either aluminum or cast iron and with a range of features, such as optional height adjusters for ease of use.

To ensure optimal performance, we highly recommend that you provide application data to us for review and mount selection.  Soundown and Rubber Design will use the data specific to your installation to perform a 6 Degree of Freedom Calculation (aka Rigid Body Analysis). This allows us to review the natural frequencies of the system and provide a solution that avoids resonance in the operating range.