| abstract |
The balance weight according to the present invention comprises at least one rubber component (a) selected from nitrile butadiene rubber (NBR), fluoro elastomers (FKM), acrylic rubber (ACM) 22 to 35% by volume of rubber component (a); 60 to 75% by volume of a high-density metal component (b) selected from ferrite, stainless steel and mixtures thereof; And 2 to 5% by volume of an additive component (c), which is flexible and easy to bend, and which contains an eco-friendly material and which increases the high-density metallic content without deteriorating the fluidity when mixing with a rubber component, Thereby providing a balance weight. |