QZ Spherical Bridge Bearings/Spherical Bearings sold to Pakistan

Specifications 1,Vertical bearing capacity 
2,Good elasticity 
3,Shear deformation 
4,marine QZ Spherical Rubber Bearing  QZ spherical bearing characteristic QZ spherical bearing has great bearing capacity,large displacement and large turning angles, so it is more suitable for wide bridge and curved bridge.No rubber is used in the spherical bearings for bridge,so it never happen that brittle rubber caused by low temperature affecting the bearing rotation,and bridge spherical bearing is especially suitable for cold areas.   Classification of QZ spherical bearing QZ spherical bearing is subjected to vertical load and rotational kinetic energy, and the horizontal displacement characteristics are classified according to their horizontal displacement characteristics: 1. One-way movable QZ spherical type bearing: bearing the one-way horizontal load, with the longitudinal displacement                      performance, code ZX; 2. Two way movable QZ spherical bearing: with multi direction displacement performance,  code DX; 3. Fixed bearing: under horizontal load, no displacement, code GD.   Technology performance 1. The rotation angle of the support is divided into 0.01,0.05 and 0.02rad, which can be increased according       to the requirement. 2. The vertical bearing capacity of 1000-20000KN is divided into 16 levels, and the bearing capacity of the            bearing is 10%. 3. Coefficient of friction: Normal temperature type μ≤0.03; Hardy type μ≤0.05. 4. Displacement of bearing design:     a.bridge in axial direction: ±50,±100,±150mm     b.transverse direction of bridge: ±20mm     The design displacement can be changed according to the engineering requirements.       QZ spherical type bearing installation  QZ spherical bearing in the factory, it has been adjusted flat, and tighten the connection bolts, to prevent the QZ spherical bearing in the installation process of rotation and overturning.We can according to the user design needs to design the rotation angle and displacement, but the construction unit should be before the order of the preset angle and displacement of the demand, by the manufacturer in advance to adjust the assembly.  Install front out of the box, and check the packing list, including parts list, a copy of the inspection report and the pot rubber bearing qualified certificate and bearing installation maintenance rules.After unpacking the construction unit, shall not be arbitrarily rotating connecting bolts, and shall not remove the support. In mounting height should comply with the design requirements, to ensure that the rubber bearing plane of the level and smooth.QZ spherical type bearing support four angle height shall not exceed 2mm.  QZ spherical bearing in the trial operation period of one year after the inspection should be carried out to remove debris and dust near the bearing, and carefully wipe the dust on the stainless steel surface with cotton yarn.