Use ball bearing Attention, design, design units currently found in some of laminated rubber bearings and bridge and culvert design specifications, industry standard design requirements do not match. Such as flat-size design is very large, but very thin thickness of seismic elastic bearing steel ball bearings, ball bearing checking the projects carried out in accordance with the relevant provisions of the bridge specifications and industry standards, and its compression, rotation can not meet the performance requirements shear deformation even smaller, even as the use of fixed bearing, spherical bearings must also meet the requirements before end of the beam angle. Such an elastic ball bearing steel ball bearings, in the course of Void and prone to accelerated aging, causing the ball bearing damage early, so, JT / T 4-2004 value specified in the measured bearing angle, rubber reinforced concrete bridge abutment greater than or equal to 1/300, 1/500 greater than or equal to the steel bridge and, when factory production and issuing production licenses, as the content of the test must be carried out. In addition, designers in the selection of laminated rubber bearings, the ball bearing and the bearing capacity of the bridge actually supporting reaction force should be consistent with the general range of about 10 percent of excellence, you can meet your requirements, not the choice of bearing bearer force bigger and more secure than the actual needs of capacity, ball bearings, especially when the ball bearing selection elastic damping steel ball bearings, the bridge should be as close to the actual capacity, because PTFE sheet with endless dry plate friction with positive pressure decreases. Ball bearing and the lower bearing: a negative reaction from the main role (or load) generated when the stress is applied by the internal and external elastic displacement of the ball is fixed to the steel structure of the resulting bearing force, in addition to determine its size, the It should also determine its direction and its role cycle, ball bearing tensile and compressive displacement will add up, set on soft ground abutments, often due to partial loads easy to make abutments produce lateral movement, for this case, the ball bearing design should take into account the bearing surface and the stand reserved for the hole size has sufficient surplus capacity. Translational machinery bearing clearance to draw maximum total displacement want to connect the upper and lower bearing fixed negative reaction force in 1mm about the method and construction phase of construction of the bridge, ball bearings sometimes also consider the rotation of the beam caused by the dead load and overall deformation. Ball bearing forth below related problems that need attention. Like rubber bearings and bearing quality steel to make the necessary comprehensive management accountable, and more specifically the structure of the relevant sections of the relevant content will be described. Elastic ball bearing steel manufacturers _ _ seismic design and installation of free elastic ball bearing steel 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!