Seismic ball bearing hinge Hao-install replacement brand casting, wujiaqu seismic ball bearing hinge is 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 ball bearing hinge Rubber support pressure and implemented by setting the rotation in steel bearing KLQZ seismic ball bearing hinge with a flat Teflon plate and stainless steel plate between the slide to meet the requirements of the bridge displacement, the basic performance requirements under existing relevant industry standards, technical performance ball bearing hinge follows (1) vertical bearing capacity (reaction force) ball bearing hinge design under vertical loads, ball bearing hinge compressive deformation value not greater than branch seat height of 2% of the total, sight port basin deformation ring suppliers shall not be greater than 0.5% spray yellow outer diameter, bearing residual deformation shall not exceed 5% of the total amount of deformation. (2) the level of carrying capacity: each direction of the ball bearing hinge bearing capacity of one-way bearing activities and the level of non-slip direction shall not be less than 10% bearing vertical bearing capacity, seismic bearing horizontal bearing capacity may not 20% less than the holder of the vertical bearing capacity. (3) Corner: ball bearing hinge vertical rotation angle provisions shall not be less than 0.02rad (4) the friction coefficient: ball bearing hinge design friction coefficient of less than 0.03 ball bearing hinge design friction coefficient of less than 0.06. (5) Displacement: Currently ball hinge bearing products, bearing the rebate is divided into 31 according to the corresponding displacement So, bearing activities exceed the value of the amount of displacement of the table, according to the actual needs due to increase . Supports single transverse direction for individual activities have different views on whether to allow the amount of displacement. Supports control only the physical and mechanical performance requirements and component quality. By striving for the ultimate limit state and serviceability limit state design of bi-directional seismic ball joint bearing, ensure adequate seismic stability against sliding ball joint bearings, ball joints when using seat anchor system usually pot bearings to ensure their stability, while relying on a stable friction bearings, bearing capacity limit state should be checking their 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 seismic damping hinge ball bearing, 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.