抄録
Hevea stocks have been used to produce vibration isolators but recently they are using many synthetic rubbers. Each of them has its own merits and demerits, so by vibration tests we intended to explain and compare their characteristics employing hevea stock F.A.Q. No. 3, neoprene G.N.-A., hycar-OR-25 and silicone, so that we may obtain data to decide what sort of rubber should be used to design isolators.
The followings were examined: (a) influence of temperature, (b) amplitude dependency, (c) oil resistancy, (d) after effect, and (e) others.
