Lead Rubber Bearing

Lead rubber bearing as a laminated bearing manufactured from layers of rubber, bond with layers of steel, and in middle of bearing there will be a solid lead core or cores inserted, which form a bearing with strong vertical stiffness and low horizontal stiffness. During the deformation in horizontal direction, the lead core dissipate the energy from earthquake.

Dr. Robinson who invented the lead rubber bearing, combining the above two properties to form the lead rubber bearing to extended the structure vibration period, reduced the structure acceleration under earthquake; the lead rubber bearing has become the most common and effective isolator in the world.