Ball bearing enhance product quality supervision is a very important task, by a nationally recognized testing unit to strengthen the authority of the laminated rubber bearing product quality testing room is very necessary, but the last layer encountered some testing unit, testing equipment itself incomplete, the ball bearing detection methods are not familiar, rubber bearing testing personnel untrained, affecting the test results, so that when this amendment industry standards, in order to facilitate the application, the original "mechanical properties of the finished laminated rubber bearing Highway Bridges Detection Rules "(JT3132.3-90) as" roads and bridges laminated rubber bearings "(JT / T 4-2004) standard normative appendix directly included, its contents, based on the practical application and consider appropriate adjustments were made to add standards in order to better control the quality of products, determine product strengths and weaknesses. In the standard, first testing equipment, testing instruments, testing personnel made better requirements. Ball bearing some laboratories, it is not for the press as a ball bearing mechanical testing and design, there are a lot of press in the 20th century, 60,70 obsolete equipment. Ball bearings in many places can not guarantee the accuracy of the mechanical properties of the test seat. So with the progress KQGZ seismic spherical bearing steel era, a lot of things behind must be updated in order to reduce occurred during the test due to outdated equipment boiled unnecessary misjudgment, in the past there have been a result of the press, under the bearing thickness is too thin QKGZ seismic steel ball bearings, the stiffness is insufficient, deformation of the self-test, the test structure of the case and, in addition, the ball bearing plane of the carrier plate size is too small, the ball bearing of the bearing plate size has been exceeded inch, thus resulting in localized by forces affect the correctness of the test results. Ball bearing fixed regardless of type (APF) or sliding (APM) are inserted into the Styrofoam with a 1m long, so easy to lay, fixed bearing (APF) of the contact point to the earthquake with 5mm thick elastomer steel ball bearing, if necessary, to achieve a fixed structure phones, ball bearings and absorb the corner. Rubber bearing slide by the composition of the inert synthetic material and the elastomer is not stiffened vulcanized together. This high quality composite body may be to improve its performance in the friction between the plate and PTFE plus natural lubricant and polyethylene containing thin sliding sheet. Fixed and sliding contact bearings penalty-type construction and technical indicators, each bearing the APF and APM 1m long range layout, ribbon bearing size, character and layout can be changed according to the needs of the project. Rubber bearing friction coefficient of 0.05-0.10, wide sliding board is mainly used for the separation of the building and its foundation, when the playing surface of the slide bearing slide bearing consists of two spherical steel composition LYQZ earthquake, skateboards posted the following poly styrene foam ball bearings affixed above 2.5mm thick polystyrene fabric can be used 4mm, 5mm, 6mm, 8mm elastic material after. Branch rubber bearing protective layer material according to the mounting bracket and then note when pouring the concrete conditions of work choices, ball bearing slide based on the degree of risk of failure to choose. Meanwhile, the playing surface of the rubber bearings are generally 1m wide and 15m long roller transport. QKGZ seismic spherical steel bearing | Earthquake spherical steel bearing | finished products, manufacturers prices offered by Hao Tong Engineering Rubber Co., Ltd. Hengshui. 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!