Seismic steel ball bearings _ skilled business _BLKGZ type seismic steel ball bearings provided by Hao-engineering rubber. Seismic steel ball bearings _ skilled business _BLKGZ type seismic steel ball bearing is rotating deformation features Hengshui HaoTong Engineering Rubber Co., Ltd. (www.htgcxj.com) 2014 年 launched a new upgrade for the upper structure of the deflection produced rotational displacement. Produce a corresponding bump in the free side of the ball bearing. Maximum design strain rubber bearing and non-buckling condition. Ball bearings to withstand external force shown below in the ball bearing any point affected by the design load effect, strain produced and available to the following formula to calculate the control: the advantages of laminated rubber bearings and ball bearings steel bearing more prominent compared with the following advantages: (1) ball bearing structure is simple, easy processing, low cost and save steel. (2) ball bearing performance, reliable, have good elastic properties, can reduce the impact of dynamic load effects on the structure and piers of the bridge span, thus improving the overall force and bridge seismic performance. (3) spherical bearing during use without regular rust, paint and refueling and other maintenance work, almost no special regular maintenance, greatly reducing the conservation effort. (4) rubber-type material sources sufficient BLKGZ seismic steel ball bearings, but also appropriate for styling and standard series. (5) ball bearing low building height (eg for steel bearings are generally small and medium span bridges height of 90 ~ 180mm, while the corresponding laminated rubber bearing construction height of only 28 ~ 56mm), easy construction and installation and replacement. Ball bearings as an effective bridge structure damping device has been applied abroad bridge device. Vertical stiffness, bearing good QZ seismic performance of steel ball bearings, supported bridges can stabilize the upper structure, the level of moderate stiffness, which can meet the earthquake generated large displacement. Better seismic performance of steel ball bearings, ball bearings have the energy absorbing seismic ground brought a large earthquake resistant ball bearing life expectancy under normal circumstances can reach 50 years. Ball bearings are squeezed into one ordinary laminated rubber bearings with lead or in multi-pin, a bearing structure in order to improve the performance of rubber bearing structure. LRB bear the weight of the bridge structure and the level of force, lead lag pin can produce plastic deformation to absorb seismic energy WJKGZ steel ball bearings, and provide the level of restoring force by rubber, therefore, both shot type bearing isolation efficiency but also has good features, style enhance an earthquake zone seismic level bridge abutment ideal form. The general structure of rubber bearing structure is simple, according to the Japanese zodiac signs bearing the relevant design standards provide damping said pressure is 1500 ~ 2600kn the LRB bearing design and production of finished products.