[Slide] QZ series ball bearing steel ball bearings Application Guide 1.1 Products rubber bearing basin applications, and promote the progress of China's bridge technology has become China Span Highway, a major railway bridge support Block types. But with the large number of new construction and a large number of urban highway overpass, viaduct, a need for a more flexible rotation, can adapt to curved bridge, the bridge of the bridge bearings. So, we, together with the Academy of Railway Sciences, first developed in the domestic ball bearing, so that the bridge construction techniques have made progress. [Slide] QZ series ball bearing steel ball bearings strictly enforce the People's Republic of China National Standard GB / T 17955-2000 "ball bearing technology", also refer to the European Committee for Standardization CEN / TC 167 Technical Committee August 1993 The draft structure bearing standard promulgated in Title VII "ball bearings and cylindrical Teflon" and second in "sliding member", the British Standard BS 5400 "steel bridge, concrete bridge and combined bridge" Ninth articles "bridge support" requirement. Example: QZ20000SX-e ± 100-θ0.02, showing the design of vertical bearing capacity 20000kN, displacement of ± 100mm, two-way corner of 0.02rad activity ball bearings. [Slide] ball bearing steel structure type and works on ball bearings from the bearing plate (including stainless steel), a lower bearing plate, ball and PTFE slide plate (each a plane and spherical, hereinafter referred to four fluorine board) and other components. Our high-speed railway bridge bearing steel ball bearing sliding mainly from the purchase of substantially all of the European bearing manufacturers, but imports before sliding bearing steel product prices, to the American AASSHTO standards uniform procurement standards . For example, rubber bearing rubber bearing basin board design permit should be set at 25Mpa. PTFE Design allowable stress of 30Mpa. Supports supplier must provide a detailed manufacturing design calculations, the construction side for approval. Chinese Passenger Dedicated Railway Bridges major steel ball bearings and sliding rubber bearing basin. Bearing design and layout principles primarily with reference to the relevant provisions of the European bearing standard range for the current bridge design coordination elastic steel sliding bearing rigidity, bearings using allowable stress design method, and hence, in the design of European design specifications parameters are adjusted accordingly. Bearing slide member board with PTFE (or modified UHMWPE plate), and with grease lubrication. Residential steel ball bearing slide superiority in terms of protecting the environment and environmental benefits of recycling economy: (1) on-site pollution reduction - due to construction work dry, short construction period, steel also reduces a lot of on-site mixing and pouring site step, do not a lot of templates, improve the degree of civilization construction site, so that the construction site clean and tidy. (2) Green - due to reduce weight, less soil foundation construction, small land destruction of this valuable resource. After building service life expires, construction waste produced after the demolition of the buildings of steel reinforced concrete structure is only 1/4 of scrap can be recycled regenerate, to achieve resource recycling.