Ball bearings as an effective bridge structure damping device has been applied abroad bridge device. Vertical stiffness, bearing good performance, stable supported bridges superstructure steel bi-slip shock absorbing spherical bearing, moderate levels of stiffness, which can meet the earthquake generated large displacement. Better performance, ball bearings have the energy absorbing seismic ground brought a large earthquake resistant ball bearing life expectancy under normal circumstances can reach 50 years. Spherical plain bearings are squeezed into a laminated rubber bearings with lead or multi-pin cushioning spherical steel bearing, a bearing structure in order to improve the performance of rubber bearing structure. LRB withstand the weight and activity level of two-way damping force spherical bearing steel bridge structures, lead lag pin can produce plastic deformation to absorb energy and to provide horizontal restoring force by rubber, therefore, both shot type bearings Isolation efficiency but also has good features, style raise an earthquake zone seismic bridge abutment level ideal form. The general structure of rubber bearing structure is simple, according to the Japanese zodiac signs bearing design standards related to damping provided by said pressure is 1500 ~ 2600kn the LRB bearing design and production of finished products. Abroad in the 1970s started to develop a spherical bearing, and soon in Bend bridge applications. Germany prestressed concrete bridge built in recent decades the use of ball bearing condition survey carried out using a ball bearing bridge features will bring greater impact damping bi movable spherical steel bearing, therefore, proper handling rubber bearing structure to accommodate the dynamic performance of the bridge by a variety of loads can be generated is extremely important. The role of the earthquake, in the vertical direction of the force constant load, increasing the horizontal direction caused by the earthquake and the vertical force of the earthquake. As a ball bearing function, requiring support vertical force, horizontal force after supporting structure or function of the horizontal displacement of the construction is completed, the ball bearing if the foundation compaction due to changes in ground subsidence, causing the lower part of the settlement, oh pick stocks, horizontal displacement and rotation and other structure is divided into a plurality of function and structure made of a combination of multiple functions, then we must fully take into account the mutual interference can not occur, the formation of weak links on the structure. Two-way sliding damping damping spherical steel ball bearings _ _ finished steel bearing manufacturer from Hengshui HaoTong Engineering Rubber Co., Ltd .. Hengshui HaoTong Engineering Rubber Co., Ltd. (www.htgcxj.com) strong, credible, Hebei Hengshui site construction materials industry has accumulated a large number of loyal customers. The company better work attitude and continuous improvement through innovative ideas will lead Hao engineered rubber and you work into the brilliant, for a better future!