By striving for the ultimate limit state and serviceability limit state design to ensure there is sufficient stability against sliding, hinged ball bearing basin usually use seat anchor system to ensure its stability, and support for a stable friction alone seat shall be the ultimate limit state checking its stability against sliding. Between the features and the safety factor is generally used for checking steel plate and friction coefficient, there is a reasonable amount of displacement of the surplus, the surplus amount, whichever rotating hinge great. Slide the surplus amount of vertical and horizontal is 20mm, maximum sliding direction, horizontal 20mm, this provision only for displacement ability to design, can not be used to calculate the stresses. The minimum displacement ball bearing hinge strength design, turn volume, turn the pot bearing has its certain range two-way movable hinge support prices, national standards limiting the pot bearings have the largest turn angle, Currently most of the ball bearing hinges are provisions should be no more than a single European standard of not more than 0.03rad, permanent relationship between the angle of the variable angle, ball bearing hinge corner here permanently worth bearing after mounting operations caused by the initial front corner , it can be said corner dead load, live load generation and operational relationship between the corner. Design maximum angle, initial angle, the maximum angle variable load generated by the smallest corner of variable loads generated. Ball bearing hinge design, generally controlled by the following conditions. In the role of the most unfavorable combinations of maximum angle, this value should comply with the standards prescribed or given by design. Bearing friction coefficient test ball joints movable hinge bearing, test pot bearing friction coefficient should be movable hinge bracket when the earthquake manufacturer, the test will be on a dedicated pot bearing double shear friction testing device placed by a combination of double shear testing machine bearing plate, bearing plate practice center and the center position alignment. During the test, the first should be preloading the bearings in a continuous vertical design loads to fill a uniform rate, with the regulator after 3min way to uninstall movable hinge bearing sales, repeated three times pre-press, pre-press after acute officially loaded First to leave the vertical design load bearing, and then load the device with horizontal continuous uniform leave horizontal force, while the initial friction coefficient of ball bearing hinges, calculated continuously during the test three times, the measured sliding friction coefficient three times the Matcha average as measured coefficient of bearing. Bearing friction absorption should be met. Stand at room temperature not greater than 0.03 based activities, cold-type bearing activities require no more than 0.06, the ball bearing hinge rotation-type test should be professional test stand, the test, the test requirements set by pot bearings carrying on board testing machine, testing center and the center bearing plate alignment. During the test, the ball hinge bearing preload should be the first choice, the load bearing vertical design with a continuous uniform rate applied uniformly bearing vertical test load is typically 1.5 times the design load, the 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 without cracks or cite other phenomena. Finished movable hinge bearing factory direct, two-way movable hinge bearing price, movable hinge support provided by Hao-engineering rubber. Search for "grid bearings, bridge expansion joints, water stop, bridge bearings, rubber bearings, spherical steel bearing" fly suppliers, network operators choose to have a full alliance Certified: Engineering Rubber Co., Ltd. Hengshui HaoTong (www.htgcxj.com), trustworthiness and reliability, "business alliance customer service" on page now click on live chat with us now!