Seismic ball bearings are based People's Republic of China Communications Industry Standard "highway bridge rubber bearing basin" (JT391-2009) and steel seismic design code (GB50017-2003), through detailed statics, dynamics analysis and research into a new type of seismic tension and compression rubber bearing basin. Seismic ball bearing series bearing seismic tension and compression, compared with other family supports, seismic damping structure not only reasonable, more reliable performance, but also in the bearing surface of the ocean-atmosphere-resistant, anti-UV treated with preservatives to ensure and extend the bearing life. Seismic ball bearing series include seismic tension and compression bearing fixed bearing, one-way bearing activities, three types of two-way bearing activities, bearing specifications are divided into 22 grades, vertical design bearing capacity, design corner friction coefficient according to the relevant design standards. Their level of capacity, the overall strength of the vertical pulling force than ordinary bearings and bearing a substantial increase. The series bearing elastic damping element, with a clear mechanism of clear, stable structure parameters, excellent damping performance characteristics. The family seat is suitable for large-span spatial structure and large span slab, especially for highly seismic areas of engineering structures. Design and manufacture of uniform principles of regular shape, both in the plane or facade structure layout, have sought to make the geometry, stiffness, ductility uniformly structured, improve the strength and ductility of the structure and components. Multi-channel vibration defense. Prevent brittle and unstable failure. Prevent material aging. High-quality manufacturing and installation. Seismic ball bearing material bearing structure, see detail. Stainless steel, Teflon slide, according JT391-1999 standard rubber seals and other regulations. Cast by GB / T11352-1989, GB / T14408-1993 standards. Seismic ball bearings using anti-aging advantages of rubber bearings transmit force, not only play a role in damping, while meeting from the resulting corner bend. Be universal bearing can withstand the pressure, shear forces and pull in any direction. Can be universal rotation, to release the bending moment in any direction. Bearing force is mostly steel parts. Rubber mats are also produced by national standards with the rubber seal and air isolation, it is important bearing outer surface ocean-atmosphere-resistant, anti-ultraviolet embalmed, thus ensuring the seat in 60 years will not affect use. PTEF products bearing used, the friction coefficient is small, aging resistance, low temperature up to -150 ℃, ensuring the flexibility and slip bearing application in cold regions. Supporting Force focused, clear and not change with the angle. The role of the lower bearing structure (column, pier) by force. Seat height is low, favorable structural design of the building. Vertical bearing capacity of seismic performance parameter index ball bearing: 500-80000KN vertical pullout: 500-80000KN Horizontal Shear: 500-80000KN above three types of force available to select the appropriate combination, but in special circumstances to be subject to review design. Design corner: 0.01-0.02rad friction coefficient: μ = 0.03 (room temperature -25 ° ~ 40 °) μ = 0.05 (low temperature -60 ° ~ 25 °)

keywords: Ball bearings, spherical steel bearing earthquake, earthquake-way steel ball bearings,