"橡胶减振座" can be translated into English as "rubber vibration-damping mount" or "rubber shock-absorbing mount".
"Rubber" clearly indicates the material.
"Vibration-damping" or "shock-absorbing" describes the function of reducing vibrations or shocks.
"Mount" refers to the component or device used for mounting or supporting.
Both translations are commonly used and acceptable, depending on the specific context or industry preference.