Elastic ball bearing steel, finished factory free installation guide, movable spring steel ball bearings provided by Hao-engineered rubber. Elastic ball bearing steel, finished factory free installation guide, movable spring steel ball bearings are Hengshui HaoTong Engineering Rubber Co., Ltd. (www.htgcxj.com) 2014 has been newly upgraded launched using ball bearings Problems, 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 the thickness of thin bearing, spherical bearing checking the projects carried out in accordance with the relevant provisions of the bridge specifications and industry standards, and its compression, rotation performance can not meet the requirements, the more shear deformation small, even as the use of fixed bearing, ball bearing must also meet the requirements before end of the beam angle. Such a ball bearing, 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 bearing reinforced concrete bridge greater than or equal to 1/300 and more active elastic steel ball bearings, steel bridge greater than or equal to 1/500, and issued in factory production and production permit universal rotation resilient steel ball bearings, as the test must be carried out content. 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 The larger force than necessary bearing capacity of more secure, ball bearings, especially the choice of ball bearings, the bridge should be as close to the actual capacity, because PTFE sheet and endless dry plate friction when positive pressure decreases with increasing Great. Over a long period of questions about, the ball bearing in the horizontal displacement earthquake increases, the so-called unitary structure (ie feature to type) is necessary to mount a plurality of functions as constituting integrated elastic steel ball bearings, collection of units constructed in a variety of functions movable spring ball bearing steel bearing, is ever more commonly used form. Ball bearing special bridge and foundation problems resonate in the soft ground, it must be fully aware of this when using. Supports true reflection of the structural design, since the transfer bridge displacement and force are directional and must be arranged to satisfy this condition. Centralized functions constituting the abutment member of a ball bearing structure and the body of each function will be designed as an independent structure, which constitutes the completion of a set of bearing the role of function-separation type bearing structure. According to current thinking and ball bearing case and abroad generally used on roads and bridges, for the use of materials and necessary functions and structure, etc., may consider a variety of forms.