Polymer composite strut insulator and suspension system for vehicle applying the same

A suspension system for a vehicle, comprising:

• a shock absorber configured with a cylinder housing to be coupled to wheels via a knuckle;
• a suspension spring coupled to the shock absorber;
• and
• a polymer composite strut insulator coupled to a strut rod of the shock absorber to be fixed to a vehicle body;
• wherein the polymer composite strut insulator includes:
• a polymer composite bracket made of polymer composite, and divided into a mounting fastening portion having an inserter and a bearing assembling portion integrated with the mounting fastening portion via a rubber injection passage;
• an elastic mass cross-linked to the polymer composite bracket and forming cup holes into which an upper cup and a lower cup coupled to each other are inserted;
• mounting bolts press-inserted into and penetrating the inserter to be fixed to the vehicle body;
• and
• a bearing tightly contacted to a bearing ball rail inserter formed at the bearing assembling portion.