The purpose for this study is to examine the vulcanization characteristics, especially the damping, elastic modulus and viscous modulus properties of filler 50 phr filled NR compounds and to find out the compounds which can be used as damping materials in industry. For this study, compounds were prepared with filler filled compounding formula. Their vulcanization characteristics, elastic modulus, viscous modulus and damping properties were examined by mean of the rheometrics dynamic spectrometer. The results of this study can be summarized as follows. 1. The elastic modulus values of the maxium under the condition of 1㎐ frequency, showed the order as follows, HAF$gt;Silica$gt;FEF$gt;GPF$gt;SRF$gt;Clay$gt;CaCO₃ coated$gt;CaCO₃. 2. The damping values of the maxium under the condition of 1㎐ frequency, showed the order as follows Silica$gt;HAF$gt;FEF$gt;GPF$gt;SRF$gt;Clay$gt;CaCO₃ coated$gt;CaCO₃.