Seismic steel ball bearing is compared to other types of bearings, the steel consumption and volume are greatly reduced, relatively low manufacturing costs, have universal rotation, universal carrying other advantages. Special structure tensile, shear, and has the ability to be resistant to seismic intensity of 9 degrees. In order to reduce construction costs and improve the overall quality of engineering and earthquake disaster reduction ability to create extremely favorable conditions for the promotion of great value in the span space structures and bridge engineering in today's booming abroad. Seismic steel ball bearings by using the Performance Category: ① multi-directional bearing activities, codenamed DX; ② vertical movable bearing codenamed ZX; ③ fixed bearing code-named GD. Seismic steel ball bearings Features: ① seismic steel ball bearings can be universal rotation, universal bearing, can satisfy the reaction force of the transfer of the upper structure of various loads generated by the rotation movement requirements to ensure that the reaction force resultant concentrate clear, safe and reliable. ② seismic steel ball bearings can withstand tensile, compressive, shear (lateral) force in the huge random seismic force, as long as the upper and lower structure itself does not destroy, falling beam, landing gear and other catastrophic consequences will not happen, so especially for fortification highly seismic area, the ability to be resistant to seismic intensity of 9 degrees. ③ seismic steel ball bearing static stiffness, and a large car in the train weight and inertia force huge force, bearing produces only minimal deformation, can reliably guarantee the car ride, the train running at high speed. ④ seismic steel ball bearing force transmission through the sphere, the force area, and using the optimized combination of a variety of materials, which have greatly reduced the volume and height, light weight, easy to install, and compared with the same carrying capacity of steel bearing low cost. ⑤ seismic steel ball bearings suitable for a wide range of temperature (-40 ℃ ~ + 70 ℃), good durability, without the use of rubber bearing, rubber aging affect the performance of bearing rotation does not exist. Seismic range spherical steel bearing application: seismic steel ball bearings suitable for a wide bridge, curved bridge, bridge, bridge ramp, large span structures and other projects, especially in the area of ??high seismic intensity more applicable. Seismic steel ball bearing technical performance: ① bearing friction coefficient is 0.03. ② support reaction force (vertical bearing capacity) 26 minutes (1000 ~ 60000KN): ③ 1000,1500,2000,2500,3000,4000,5000,6000,7000,8000,9000,10000,12500,15000,17500 , 20000,22500,25000,27500,30000,35000,40000,45000,50000,55000 and 60000KN. ④ bearing horizontal shear vertical bearing capacity of more than 20%: ⑤ bearing pullout tensile strength is 10% -30% of the vertical bearing capacity; ⑥ seat angle is 0.03rad; ⑦ bearing temperature range : -40 ℃ ~ + 70 ℃ www.htgcxj.com 

keywords: Spherical bearings, spherical bearings seismic, seismic steel ball bearings,