Hao-engineering rubber, elastic damping steel ball bearings, steel ball bearings 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 bearings addition, When cut vehicle weight evenly distributed through the bridge horizontal forces, absorb some vibration, thus extending the life of the bridge, the general speculation about his life up to 35 years, while, according to the information, rubber bearings also has a strong resistance to fatigue characteristics, can not bridge piers due to fatigue damage under the action of seismic forces, given the above advantages and features rubber bearing elastic damping steel ball bearings, many advanced industrial countries such as the United States, Russia, Japan, France , Germany, Canada and Australia have been comprehensively promote the use of laminated rubber bearings in the domestic bridge project is also above countries has been widely used, can be expected in the future application of laminated rubber bearings there will be further development of new and improved products will continue to appear on the market. Laminated rubber bearings from the case in recent decades on the highway bridge used, in addition to the transportation industry standards set forth in species, there have been a number of varieties of industry standards outside the so-called "non-standard" products, These products are in the technical reliability and maturity is also worth further exploration. So much to the activities of steel ball bearings, where the classification of laminated rubber bearings only by the scope of the transportation industry standards for this reason, when using structural separation type, the appropriate functional separation is necessary to ensure that all construction Completion is expected to function body tension and compression steel ball bearing type LY, when combined, must meet the requirements of bearing function to determine its structure and strength. Since each interaction between the upper and lower structure. Temporary stand completed and spread whining, after the old stand out, seriously original beam bottom line stainless steel rust and dirt thoroughly cleaned, coated with a layer of smooth oil. When the earthquake off the beam due to the problem of the upper structure, must ensure that there is human life when falling beam damage accidents, meanwhile, should be based on an important type of bridge, the control performance of the bridge will not reduce the problem is also very important . When using a B-type basic carrier, but the constraints of abutment of the upper structure is difficult to produce large vibrations, even bearing damage is limited to the possibility of a small drop of the bridge beams A class may also be used stand.