In addition, the ball bearing heavy cutting can be evenly distributed when the vehicle passes through the bridge horizontal force, absorbing part of the vibration, thus extending the life of the bridge, the general speculation about his life up to 35 years, at the same time, according to the information, the ball bearing also has a strong resistance to fatigue characteristic activity ball bearings, bridge abutments make no activity due to fatigue and damage longitudinal ball bearing in the role of earthquake forces, in view of the above advantages and features rubber bearings ball unidirectional activity type support, many advanced industrial countries like the United States, Russia, Japan, France, Germany, Canada and Australia and other countries have already comprehensive application transverse activities ball bearings, spherical bearings in the domestic engineering also like Like the above-mentioned countries have 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. Ball bearings from the case in recent decades for use on roads and bridges, in addition to the transportation industry standards set forth in the species, there were a few 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. Rubber bearings So, here the classification of ball bearings only by the scope of the transportation industry standards for this type of ball bearings allow little corner corner or simply not allowed when used to pay special attention, while a permanent basis use of different forms of stress, the relationship between common form, carrying capacity and plate width. Such rubber bearings used in a span of more than 6m structure, and can use a certain angle requirements, rubber bearings made of polystyrene foam between the two lateral panels resistance to embed a 5mm thick elastic core blocks, pellets The main role is as follows: (1) a load in the seat center. (2) ball bearings to absorb rotational deformation, preventing strain transfer to the lower edge of the structure, which can reach to avoid damage to the cracks and corners. (3) The ball bearing can absorb such a displacement of 2.5mm ball bearings are generally two kinds A and B form, in which A is a slide-type structure, and the structure of the two B-type slider, the upper surface lined with polystyrene foam, such a ball bearing structure and parameters. Bearing a fixed or sliding point of contact when the contact point bearing, ball bearing can absorb the displacement of the contact point and to each of the displacement and rotation, to ensure uniform distribution of the load, such a ball bearing is often used residential and process buildings, parking and appearance of complex structures. Directed activity ball bearings, ball bearings, Taizhou activities, 13833855982 provided by the Engineering Rubber Co., Ltd. Hengshui HaoTong. Hengshui HaoTong Engineering Rubber Co., Ltd. (www.htgcxj.com) strong, credible, Hebei Hengshui site construction materials industry has accumulated a large number of loyal customers. The company better work attitude and continuous improvement through innovative ideas will lead Hao engineered rubber and you work into the brilliant, for a better future!