IKO import bearing quality inspection standards and technology

The first, reasonable structure design and equipped with advanced, just can have longer IKO import bearing life. Bearing manufacturing generally go through forging, heat treatment, cutting, grinding and assembly, and multi-channel processing operations. The rationality of the processing technology, advanced, stability will also affect the service life of bearing. Which affects the quality of finished products bearing heat treatment and grinding process, tend to have a more direct relationship with bearing failure. In recent years the study of metamorphic layer of bearings working surface show that the grinding process and is close to the surface quality of the bearing. Second, bearing materials metallurgy quality were the main factors influencing the premature failure of the rolling bearing. As metallurgy technology, For example, the bearing steel vacuum degassing, etc. ) Progress, raw material quality is improved. Raw material quality factor in IKO import bearing failure analysis share has declined obviously, bearing but it is still one of the main influence factors of bearing failure. Third, proper material whether is still bearing failure analysis factors must be considered. The main task of the bearing failure analysis, which is based on a lot of background material, analyze data and failure forms, find out the main factors of IKO import bearing failure, so that the improvement measures are put forward, prolonging bearing, avoid premature failure of the bearing of the sudden. Installation conditions is one of the primary factor of using factors bearing are caused by improper installation of a complete set of change the stress of bearing between various parts, bearing in the abnormal state run and early failure. 1. Load size, direction and nature: ball bearing is suitable for light load, under roller bearing is suitable for heavy load and impact load. When the rolling bearing of pure axial load, generally choose thrust bearing; When the rolling bearing of pure radial load, generally choose deep groove ball bearings or short cylindrical roller bearing; When the rolling bearing of pure radial load at the same time, there are not large axial load, the choice of deep groove ball bearings, angular contact ball bearings, tapered roller bearing and self-aligning ball or spherical roller bearings; When the axial load is bigger, can choose the contact Angle of the larger angular contact ball bearings and tapered roller bearings, or choose the centripetal bearing and thrust bearing together, in the very high axial load or special requirements have larger axial rigidity is especially adapted to when appropriate. Allow speed: imported bearing types have very big difference. In general, friction small, less calorific value of the bearing, suitable for high speed. Design should strive for rolling bearing under the condition of lower than the limit speed work. 3. Rigidity: when bearing the load, bearing ring and rolling element contact can produce elastic deformation, the deformation and load is proportional to the, the ratio is determined by the size of the bearing rigidity. Generally by bearing preloaded to increase the stiffness of bearing; In addition, in the bearing design, consider the combination of the IKO import bearings and arrangement can improve bearing supporting stiffness. 4. Self-aligning properties and the installation error, bearing into the work place, often caused by manufacturing error of installation and positioning. This often by reason of the shaft of the deflection and thermal expansion, too make bearing load, lead to early damage. Automatic self-aligning bearing can overcome the defects caused by installation error, bearing is suitable for such purpose. 5. : the erection and dismantling of tapered roller bearings, needle roller bearings and tapered roller bearings, etc. , belong to the inner and outer circle separable IKO import bearing type ( The so-called separation type bearing) , easy installation and removal.