Currently seismic steel ball bearings have been used for housing construction and some bridge seismic spherical bearings, but because the seismic steel ball bearings in the event of bearing displacement, are accompanied by changes in seat height, so long associated Span Use continuous beam, due to the good of each pier bearing temperature displacement vary, it will cause the pivot of different elevation changes, additional stress bearing. Currently used seismic steel ball bearings on Sutong Yangtze River Bridge. Seismic steel ball bearing LRB is a supply base laminated rubber bearing on seismic universal spherical bearings, bearing center in earthquake-way into the lead stick spherical bearing products, to improve the rubber bearing An anti-vibration damping performance support. LRB bear the weight of the structure and level of force is generated Lead lag damping plastic deformation and provide the level of restoring force by rubber. Seismic steel ball bearing metallic lead at ambient temperature in hot working conditions, when plastic deformation can lead gradually to restore the original mechanical properties. When the laminated rubber bearing steel and rubber to lead core tightly bound to live, forcing all of Lead in bearing shear deformation to produce plastic shear deformation, resulting in changes in the seat of hysteresis curves a holder having a good damping effect. Seismic steel ball bearings in the 1980s China has formed a special oil chamber in seismic steel ball bearing cradle, and then use the oil chamber to measure the change in oil pressure bearing reaction force, and achieved satisfactory results. 1992, for example to meet the needs of the Guangzhou-Shenzhen line Shilong bridge construction, in order to bridge the construction phase of the internal forces of change to test, you need to accurately determine the course of prestressed bridge fulcrum reaction force changes in the beam. Developed by the Academy of Railway Sciences 5MN level seismic steel ball bearings. 1.2 earthquake steel ball bearings in order to verify the test to determine the possibility of the use of rubber bearing reaction force within the oil chamber pressure, we first tested bearing three 2MN processing to solve the following problems by testing simulation (1) seat The method of forming the rubber oil chamber; (2) bearing the load oil system; (3) load bearing performance and test operation process; by setting the pressure receiving plate by a layer of Teflon or rubber Polyester film made of seismic isolation bag QZ series ball bearing manufacturers, can form a layer of oil chamber within the rubber sheet. In the oil chamber filled with a rubber-effect does not occur with special hydraulic oil, as the power transmission medium. Then the oil through a sealing system, the rubber cavity can accurately by hydraulic oil pressure gauge or oil pressure sensor to measure. Supply universal seismic spherical bearings, spherical bearings, Guangdong Province, the earthquake, the grid of steel ball bearings provided by Hengshui Rubber Co. Guangrun. Hengshui Guangrun Engineering Rubber Co. (www.grgcxj.cn) (www.grgcxj.cn) strong, credible, Hebei Hengshui site construction materials industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Guangrun Rubber Company and you work into the brilliant, for a better future! You can also access (www.grgcxj.cn/supply_details_41784540.html), for more information about the company.