Finished sliding bearings manufacturer warranty for 50 years, the grid finished sliding bearings, sliding bearings Hunan provided by Hao-engineering rubber. We are Hengshui HaoTong Engineering Rubber Co., Ltd. (www.htgcxj.com) located at: Hebei Hengshui specializes in: grid bearings, bridge expansion joints, water stop, bridge bearings, rubber bearings, spherical steel bearing assembly after Appearance flatness requirements, after sliding bearing assembly exposed surface smooth, beautiful, uniform welds unidirectional sliding bearings wholesale, attendance sheet should be parallel to the ground and lower seat board, parallelism should be no greater than the diameter or the long side of 2%, Theravada plate centerline and should coincide with the center line of the next sitting board. Transport and storage, the sliding bearing assembly should be fixed, and transport, storage, and installation shall be arbitrarily removed after assembly height deviation requirements. Corrosion, due to the hardness can not resist the acidic environment of the chloride ions and negative ions, and could easily be atmospheric ion erosion, especially in the supply environment, so to special protection, sliding bearing installation should be preceded by a clean surface truss sliding bearing manufacturers, particularly square value of the surface to be lubricated contamination. The basic provisions of sliding bearing design, according to the national standard, sliding bearings with PTFE sheet, high quality grease lubrication conditions in contact with the spherical steel and stainless steel friction coefficient reduction in the average stress is 30mpa, the design friction coefficient should meet requirements under the concrete strength grade spherical bearings should generally not less than 40, must be arranged within a highly reinforced multilayer distribution range in local bearing area under the slide bearing pad type to withstand the splitting of concrete tensile stress. Spherical bearing design principles, ball bearing design, the design of bridges and culverts not requested your prescription, do good introduction based on foreign experience and practical application. Each function on the principle structural inspection should not appear at all interfere with each other, consider earthquakes seismic dynamic slide bearings during bridge use, shall be subject to "minor earthquake, the earthquake repairable sliding bearings, earthquake does not down "principle to consider. So bearing structural systems for bridges, structures built after the completion of the grid finished sliding bearings, foundation settlement if compaction due to changes in ground subsidence, causing the lower pick Oh stocks, horizontal displacement and rotation and so on. Respect to the upper structure, acting on the load bearing construction, and function of a great difference in the construction of the completed bridge load bearing functions in the study, the sliding bearing an external force must be considered in the construction of the impact fulcrum displacement and rotation effects will occur, should be based on the current seismic code provisions are important for seismic performance guaranteed seismic dynamic structure around the bearing structure often in load when the upper structure as the main load, as a modern functional requirements The seat, with a variety of structures in Figure 1-2 if. The so-called structure is composed of bearing itself among the members of each force transfer and absorption relative deformation of the structure. There are vertical dead load, live load (including impact) and temperature changes, concrete shrinkage and creep effects, slide bearings, etc. Once prestressed interference, but also the entire bridge structure should be designed system.