Seismic steel ball bearing is an important component to connect the upper structure and the lower structure of the bridge, it will bridge superstructure min reaction force and deformation (displacement and rotation) is reliably transmitted to the lower part of the structure of the bridge, so that the structure of the forces consistent with the theoretical calculation of the drawings. Seismic steel ball bearings must meet the following functional requirements. First seismic steel ball bearings must have sufficient load-bearing capacity of anti-pullout steel ball bearings to ensure safe and reliable transmission of support forces (vertical and horizontal forces). Second shaft seat on bridge deformation (displacements and rotations) constraints should be as small as possible, in order to meet the needs of the bridge body free expansion and rotation. Furthermore bridge bearings should be easy to install, maintenance and repair, and replace if necessary. Acting on the bearing reaction force, displacement and rotation in the Cartesian coordinate system can be respectively six and six displacement force open representation. Selection of bearing type must be determined according to the force applied to mount shrinkage and deformation of freedom. Because bearing anti-seismic displacements and rotations drawing steel ball bearings, bearing will generate additional reaction force, so that the size and bearing reaction force corresponding changes reverse effect occurs. This requires the design is not a common type of bridge supports, for example, roller bearings, sliding bearings, plate and pot rubber bearings, spherical bearings and cylindrical bearings, so as to minimize the displacement of bridge bearings additional force and the resulting corner. Steel ball bearings [seismic] Design Corner: 0.02rad. [Seismic steel ball bearings can withstand the horizontal forces]: GD fixed bearing each direction, limit the direction of the DX-way bearing activities, bearing design for vertical bearing capacity of 10%. Multi-seat each to the activity (DX), the design level DX-way bearing activities force activity direction is 5% bearing vertical design bearing capacity. [Seismic steel ball bearing design displacement]: The main displacement of the design displacement SX and DX-way bi-bearing activities activities bearing structure along the direction of the lateral displacement of the ± 100mm and ± 150mm, SX-way bearing activities is ± 40mm steel ball bearing grid anti-pullout, DX-way bearing activities lateral displacement limit of ± 3mm. When the desired amount of displacement is not the same, you can make special design; steel ball bearings [seismic] activity coefficient of friction bearing design: room temperature (-25 ℃ ~ 60 ℃) low temperature (-40 ℃ ~ -25 ℃) μ≤0.03 μ ≤0.05 temperature ranges: -40 ℃ ~ + 60 ℃ 7, bearing Environment: Supports according to the environment can be divided into common type (for general atmosphere) and corrosion resistant (suitable for the marine environment and severe atmospheric pollution atmosphere), corrosion resistant bearings require filling in the model LQZ (NS) in order to make identification. [Seismic] ball bearing steel sloping requirements for the beam, precast beam axle set way wedge plate bearing attendance topside to accommodate the requirements of the slope of the beam; slope cast girder bridge by the end of the concrete beam adjustment , bearing the body no slope. Universal Anti-drawing steel ball bearings, anti-drawing steel ball bearings, bearing professional manufacturers of finished Guangrun provided by Hengshui Rubber Co. project. 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_43268240.html), for more information about the company.