Hao-engineering rubber | multi-directional activities ball bearings | 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, make a bridge pier in the role of earthquake forces are not due to fatigue damage lateral slip ball bearing, rubber bearing Given the above advantages and features, many advanced industrial countries such as the United States, Russia, Japan, France , Germany, Canada and Australia have been comprehensively promote the use of multi-directional activities of ball bearings, laminated rubber bearings in the domestic bridge project is also the same as the above-mentioned countries have been widely used, can be expected in the future laminated rubber bearings The application will be further developed, new and improved products will continue to appear on the market. Laminated rubber bearing on the case in recent decades in terms of highway bridge using longitudinal slip ball bearings, 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 reliability and maturity of the technology is also worth further exploration. So, here the classification of laminated rubber bearings only by the scope of the transportation industry standards to take into account the seismic vibration force when the role is often over-designed, the certificate holder bolts early destruction along and transverse to the direction of the bridge destruction fiber device to prevent separation of the earthquake damage on the pull force on the bearing metal structures and, bearing shear deformation, etc. on the floor with. Accordingly, when the bearing steel design, the following aspects should be noted. (1) when the level of force to overcome the earthquake and pulling force of the earthquake on the use of steel castings do not ask, you should use high toughness materials. (2) protection component element are inverted, so as to prevent stress concentration. (3) to stand in the same line of support should take appropriate measures to prevent all broken (4) the use of a higher seat height of occasions to deal with the high limit device to prevent elevation of used together. (5) response to the horizontal bearing surface of the bearing and rotational movement, to take the wear and corrosion and dustproof. (6) to the carrier material used herein must meet the performance requirements and manufacturing assurance steel bearing species, the support structure in accordance with the vertical force of the seat into surface contact, line contact bearings and other bearings drink special steel, surface contact bearing structure when flat or curved supporting vertical force line contact bearings with a cylindrical surface of the support structure of the plane and the vertical force of special steel manufactured using special red steel bearing seat when, according to the classification of its structure and composition can be broadly summarized seat for a member.