Applications Introduction

Discover information on rubber hardness comparisons and compounds, the principle of anti-vibration mountings, and a brief description of isolation and damping. In addition to this, you will find outlines basic design aspects regarding the mounting of rubber to metal bonded products, including standard loading directions. Also provided are equations for calculating load distribution, a graph showing the relationship between vibration transmission, disturbing frequency and deflection, and finally examples explaining the basic calculations required for mounting selection.

Rubber Hardness

The hardness of rubber is normally expressed in Shore A. It is determined by measuring the resistance to a cone penetrator.

Figure 1.1 — Hardness Comparison

figure1-1

Figure 1.2 — Hardness Correction Factor

Deviation in degrees of Shore A Correction factor
1 1.038
2 1.087
3 1.118
4 1.161
5 1.205
6 1.251
7 1.298
8 1.348
9 1.399
10 1.458

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