Ball bearing] [ball bearings to find the grid through the company Hengshui Hao, seismic steel ball bearings provided by Hao-engineering rubber. Ball bearing] [ball bearings to find the grid through the company Hengshui Hao, seismic steel ball bearings are Hengshui HaoTong Engineering Rubber Co., Ltd. (www.htgcxj.com) 2014 年 launched a new upgraded steel pendulum column whether structural truss bearing accurate relative position of each component seismic steel ball bearings, the force is uniform. Whether roller bearing steel grid roller allowed crawling, skewed. Whether rocking shaft bearing steel grid tilt. Steel cast concrete pendulum bearing steel grid column note the presence or absence of concrete peeling, cracking, exposed tendons and steel with or without corrosion. In regular testing stage, bearing steel grid defective parts, type, nature, scope, quantity and description of the extent of the external situation carefully and provide typical defects of photographs and pictures. Multi requirements for special bridge inspection report should clearly state the reasons inspection. Special investigation. The so-called special investigation is to always check after regular inspection, bearing steel grid should be based on the status and nature of the damage for dictation specific bridge or steel truss supports, the use of instruments to coordinate awakened site testing, load testing machine other auxiliary test, when carried out detailed investigations made by check, decided to emergency repair methods goods through special investigations and obtain information on two patches designed to investigate. Furthermore damping steel ball bearings, steel truss bearing checking survey project operations, including environmental conditions can, traffic, bridge bearings MI characteristics and conditions. Oil coating is polymerized oil, catalysts and pigments, etc., the coating during the drying process by automated fatty acid carbon chain of the unsaturated double bonds on the polymer, bearing steel grid structure of the finger body is cured to become a film, steel mesh rack mount more domestic manufacturers, protective coatings on the market there are many varieties of different characters, steel truss bearing conditions and requirements vary, we can say the market can not find a universal coating GD type Fixed seismic ball bearing, steel truss bearing so choose coating material is very important ball bearings, and as an anti-corrosion coating melancholy must have the following performance characteristics. Characteristics of steel grid holder has good resistance to corrosion, the corrosive medium which solidified massacre means of which it contacts, in terms of physical and chemical properties are stable, neither corrosive medium swelling, dissolution, decomposition and destruction, that undesirable chemical reactions corrosive harmful. Having a small air permeability and water permeability, gas-impermeable and permeable coatings no absolute, it is necessary to select a small permeability shielding film material and the type of coating large. Bearing steel grid operators have good mechanical strength and the necessary focus, whether applied firmly leaning in protective basically, is a manifestation of its ability to play a protective role of key factors, should also have certain physical and mechanical strength, steel truss bearings to withstand stress under working conditions.