Hao-card sliding bearings | ball bearings seismic slip | slide ball bearing is 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, ball bearing steel bearing with the appearance of quality materials, PTFE resin sheet should Bensi, seismic slide plate surface should be smooth ball bearing, does not allow any cracks, bubbles, delamination, mechanical damage does not allow the use of other defects affecting not allowed plus single any impurities, the appearance quality should comply with the relevant provisions of grease lubricants, stubborn as a milky white or light gray translucent objects, does not allow any mechanical mixed with stainless steel plate stainless steel plate bearing use, may not have divided crack bubbles, impurities, scarring and other defects affecting performance, welding parts are dragged gas welding, the weld should be firm, smooth, vouchers, continuous, with no cracks, spreads, for integration and to fill the crater. Weld height should meet the design requirements, the welding process Haiying avoid weld Empress, dislocation and base metal burns and other defects slide ball bearing, surface defects after machining castings shall comply with the provisions of machined steel parts processing provisions of surface defects after, but does not affect the life and performance of steel castings, allowing a patch of honeycomb holes and cracks in steel castings allowed to repair using horizontal sliding ball bearing, steel castings Welding money, it must be cleaned to defects showed good metal position, and from the bevel edge and the surface within the range of 30mm strong clean, simple and honest should be grinding to meet the casting surface quality requirements. And shall have not weld, cracks, slag, porosity and other defects. After welding parts should be annealed or tempered. Bearing friction coefficient is 0.03. Bearing horizontal shear vertical bearing capacity of more than 20% of the vertical bearing capacity bearing for 1000-60000kn, divided into 25 specifications washing. Adapt bearing temperature -40-70 bearing angle is the maximum allowable 0.03rad, the main features of seismic spherical bearing structure can be attributed to having universal rotation, universal bearing, bridge superstructure to meet various loads, resulting in bidirectional transfer reaction force ball bearing slide, rotate, displacement requirements. Seismic spherical steel bearing under pressure, shear, since the strength and performance of such a carrier is higher than the strength and toughness of the structure itself. Use the holder at random seismic force, as long as the bridge and down the structure itself is not damaged, it will not fall beams and other consequences of the disaster from happening.