Correct installation and regular maintenance room steel ball bearings to ensure that important measure seismic work properly. The work at the factory, the general should be clearly marked steel ball bearings, bearing models indicate, reaction force, displacement and rotation, in order to avoid confusion in the installation is. Bearing usually assembled at the factory after the whole transport to the site of the fixed damping steel ball bearings, bearing in order to ensure the integrity of the transport process, the application temporarily positioning device will mount the parts connected together, these temporary positioning device in branch It is the work before the seat, be removed, the specific time of the removal, site engineering and technical personnel should be based on the form and structure bearing stress conditions. Before bearing installation, the installation position of the carriage should be measured testing, production and installation of a sliding bearing or a plane to be parallel to the rolling plane, which is parallel to the degree of tolerance of not more than 2%. Seismic steel ball bearing installation bearing top, the relative position of the floor response activities before testing. Preset amount of displacement roller bearings and plain bearings must meet the design requirements. When the temperature of the restrictions by installing steel bearing damping steel ball bearings, sliding bearings preset amount of displacement must be adjusted, the adjustment should be carried out under the guidance of the displacement bearing professional engineer. After the seismic steel ball bearing installation, rolling and sliding plane should be level. Tilt with the theory of plane is not more than 2%, bearing down in the center of the plate to deal with unidirectional sliding damping steel ball bearings, the deviation is not more than 2%. Stone bearing pad design should be considered in the low beams and piers between the top surface and leave some headroom for inspection and maintenance at bearing use, and if necessary, can be placed jack, bearing replacement. According to the actual situation of the Qiantang River Bridge seismic force steel ball bearing, at constant load and live load together, contact stress between the stainless steel plate for 15MPa, the dead load stress is about 12MPa, to ensure the bearing friction coefficient of 0.2 to 0.28, Academy of Railway Sciences has worked flat yellow copper and stainless steel friction plate, followed by the coefficient of friction between 0.135 to 0.15. Seismic steel ball bearing mechanical properties of steel ball bearings in seismic bearing steel liner plate to the middle of the bridge along the ends of the roof when the relative sliding bearings and intermediate steel liner plate (seismic force is greater than 0.2P), the Seismic bearing steel ball bearing, whereby the lateral force, the lateral force by bolted on the top plate of the lateral bearing steel baffles bear. When you reach a certain lateral force, yielding steel bezel, steel ball bearing bearing capacity loss. When seismic steel ball bearings under pressure, will produce lateral lateral pressure steel bezel, rubber due to the Poisson ratio close to 0.5, so the stress state in the three lateral stress is consistent with the normal stresses of rubber. The lateral force acts on the steel sheet, the steel sheet has to be tightly pressed by means of screws, the main bolt has sufficient strength, under the stress state is equivalent to the lower end of the lateral steel sheet consolidation cantilever. Steel stress stress measurement and theoretical calculations are very close. Two-way sliding steel ball bearings _ damping steel ball bearing steel ball bearings _JQGZ type damping provided by Hengshui Rubber Co. Guangrun. Hengshui Guangrun Engineering Rubber Co. (www.grgcxj.cn) (http://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_40825215.html), for more information about the company.