The main function of ball bearings is the reaction force of the bridge superstructure reliably transmitted to the pier, and also to adapt to the corridor truss bridge structure displacement and deformation of ball bearing sales corner, according to these performance requirements, rubber Supports should be designed to have sufficient stiffness in the vertical direction, the ball bearing to ensure that the maximum vertical load bearing under a certain compression deformation, the general provisions of bearing the greatest compression and shall not exceed the total thickness of the rubber 15%, rubber bearings in the horizontal direction of the force should have a certain flexibility to adapt to the vehicle due to the braking force, temperature, creep and shrinkage of concrete and live loads of the horizontal displacement of the beam, while the thickness of ball bearings should also be able to adapt to the needs of the beam angle. Ball bearings can be designed to be for a fixed period, and the other end to the activities of the seat can also be designed as part of the fixed end and the active end of the bearing. Fixed ball bearings are generally relatively thin thickness to meet the vertical support beam reaction force and the end of the beam can rotate freely requirements. Horizontal displacement of the beam mainly by the shear deformation of rubber bearing activities to complete, depending on the height of the horizontal displacement size. Both ends fixed to the movable end, regardless of when the ball bearing. Both the same thickness, horizontal displacement is completed by two ball bearings at the same time, each bear half. Meanwhile, all laminated rubber bearings, at the minimum vertical loads, should ensure seat itself without any slippage imagination. In the choice of ball bearing, should also be noted, as long as the beam end bearing deformation turn to meet the requirements, the more favorable the thickness of the thinner seat, and then the whole bridge structure to withstand the horizontal forces due to bearing bearing shear deformation does not depend on the completion of the design, but also fully consider the purchase of fixed ball bearing corridor grid ball bearings, bearing activities and forms part of the curved bridge abutment structure and reasonable layout. In our country has always been a bridge and culvert specifications and industry standards, for ball bearings and acceptance in both the design and construction requirements necessary to mount the beam at the end, bearing, and piers up and down the corridor grid snug contact ball bearings, the ball-type bearing force uniform, with no void phenomenon, rubber bearings in the best force uniform grid corridor ball bearing, with no void phenomenon, to ensure the ball bearings in the best stress state When there are longitudinal beams, should be leveling processing. Currently, the world bridge normative standards such as the US AASHTO-LRFD Highway Bridge Design Code (2004) EN1337-3 European standards (2005) and others require, when at the annual average temperature and all the dead load, the relative level of beam bottom consult more than 0.01 When rad, ball bearing steel must be used to make bridges corner wedge zero level to ensure the bearing seat by force, so our bridge design specifications and bearing industry standards are clearly defined when the bottom longitudinal beam must be greater than 1% leveling treatment, but when the two longitudinal slope of less than 1%, when selecting the ball bearing deformation regulations will take into account, this can not be ignored. Guangdong corridor grid ball bearings | HaoTong soft power manufacturers offer | Corridor grid ball bearings provided by Hao-engineered rubber. Hengshui HaoTong Engineering Rubber Co., Ltd. (www.htgcxj.com) in grid bearings, bridge expansion joints, water stop, bridge bearings, rubber bearings, ball bearings and other steel industry has high visibility, integrity management both, quality of service, welcome to inquire or consult our "Commercial Union Service" it!