Test ball joint bearing friction coefficient test pot bearing friction coefficient should be on a dedicated double shear friction test apparatus, the pot bearing combination is placed in double shear test load board tester bi sliding ball joint bearing, center bearing plate Practice Center and alignment. During the test, first pre-pressure to the continuous load bearing vertical design to fill a uniform rate, with the regulator 3min after the unloading, the preload is repeated three times, after acute becomes loaded preload, first vertical carriage leave design load, the level of the loading device and then leave a continuous, uniform horizontal force, and calculate an initial coefficient of friction ball joint bearing, the test procedure carried out three times in a row, the average coefficient of sliding friction as measured 3 times the measured bearing matcha factor. Bearing friction absorption should meet. Std bearing activities is not greater than 0.03, cold-type bearing activities require no more than 0.06, the ball bearing hinge rotation-type test shall be conducted in a professional test bench, the test, the test pot bearings according to the requirements set the carrier sheet in the test machine, trial center position of the center of the plate is aligned with the carrier. During the test, the ball should be the preferred hinge bearing preload, the load bearing vertical design with a continuous uniform rate applied uniformly bearing vertical test load is typically 1.5 times the design load after load regulator jacking beams, so bearing design produces 0.02rad corner or corner, holding Dutch 1h after uninstallation, bearing in testing and dismantling after the test, visual inspection, observation steel, PTFE plate, brass sealant without injury rubber sheet includes no cracks or other phenomena. Once the ball joint bearing part of the functions of local damage or imperfect situation unidirectional sliding ball joint bearing, the agent will have a greater impact other functions. Therefore, the use of the whole structure type, need to fully take into account the combination of features and its strength can be sure that the various effects (or load) state functional requirements. Loads structural separation Functional separation method, the ball bearing hinge mainly for vertical and horizontal support functions supporting functions, each essential functional separation. Ball bearing hinges are usually based on the state of the earthquake and wind load rating slip ball joint bearing, ball bearing hinge can have a variety of functional separation method to separate the entire architecture bridge seismic properties assumed in the design is not the difference should be obvious; the same time, during an earthquake, it may appear on the deformation of the lower structure set up foundations, live in the lower structure at the top of a narrow width, and constitute only one seat and the rear seat pivot appear to have a fall injury transverse beam dangerous bridge, using two-way Class B slip ball bearing hinge bearing principle, only to find a professional manufacturer Hengshui Hao Tong, sliding ball joint mount is provided by Engineering Rubber Co., Ltd. Hengshui HaoTong. Hengshui HaoTong Engineering Rubber Co., Ltd. (www.htgcxj.com) in the field of construction materials at the site devoted boundless enthusiasm and passion, Hao-engineering rubber has been customer-centric, the concept of creating value for customers, quality, service to win the market, and sincerely hope to cooperate with the community to create a successful, create brilliant. Related businesses welcomed the inquiry, Contact: Liu.