(ASAHI bearings in China) [Heilongjiang the NTN Chinese agents 
 (ASAHI bearings in China) [Heilongjiang the NTN Chinese agents 

 (3) ASAHI is outside spherical bearings such as high speed under the conditions of operation, and a higher operating temperature, special attention should be rotating ring with not too loose to prevent the emergence of the eccentric, and a fixed ring with non-emergence of the gap, to prevent ring deformation under load and excitation vibration. 
 (4) take a small interference with the fixed circle condition is to match the surface of both sides have high shape accuracy and smaller roughness, or cause installation difficulties removing it more difficult In addition, you also need to consider the spindle thermal elongation . 
 Double angular contact ball the ASAHI outside the spherical bearing spindle (5) pairs, most of the load is lighter, its amount of interference with such large, the internal axial preloading will be significantly larger, resulting in adverse effects . Double row bearing spindle and spindle bearing, the load is relatively large, so with the earnings are also relatively large. 
 3. Improve the practical with the accuracy 
 In order to improve the the ASAHI spherical bearing installation, the actual fitting accuracy, use of to ASAHI spherical bearing deformation measurement methods and tools, precision measurement of the actual mating surface dimensions of bore and cylindrical, spherical bearings ASAHI, measurements of the inner and outer diameters can all be measured, and to make a comprehensive analysis of the measured data, this according to precision with the size of the shaft and housing bore ASAHI spherical bearing installation position. With the actual measurement for the size and geometry of the shaft and housing bore should be in the same temperature and the measurement of ASAHI outer spherical bearing conditions. 
 (ASAHI bearings in China) [Heilongjiang the NTN Chinese agents 
 NTN Bearing metallurgical quality of the materials is a major factor in early failure of rolling bearings. With the metallurgical and technological progress (such as bearing steel, vacuum degassing, etc.), improve the quality of the raw materials. The proportion of raw material quality factor in the analysis of bearing failure has decreased significantly, but it is still one of the main factors bearing failure. Choose whether it is appropriate that must be considered bearing failure analysis. 
 Bearing manufacturing operation will go through the forging, heat treatment, turning, grinding and assembly processes. Deal with rational, advanced, and stability will also affect the life of the bearings. Affect the bearing heat treatment and grinding process, often associated with the failure of the bearing more directly related to product quality. In recent years, the deterioration of the research bearing on the surface layer, the grinding process is closely related to the quality of the bearing surface. 
 The so-called cleanliness test is separated by means of the bearing impurities and test method for determination of the degree of pollution, current Cleanliness detection methods have the following three categories: Quality Law, microscope counting method, automatic particle counting method. 
 A: the quality of law. 
 JB / T ⒛ 50-2005 standards set by the State within the first SKF bearing impurities cleaning into the cleaning solution after cleaning fluid filtration, dried, weighed to calculate the quality of the impurity particles. 

 II: microscopy. 
 Similar to the previous step of this method and quality of law, different cleaning fluid filtering, the direct use of the size and number of impurity particles in the microscope observation membrane. But also according to the shape of the impurities, to determine the chemical composition and content of impurities. This method is most suitable for the determination of the cleanliness of precision bearings. 

 : Automatic particle counting method. 
 (ASAHI bearings in China) [Heilongjiang the NTN Chinese agents 
 Automatic particle calculations and Quality Act, microscopy, it is the use of the theory of the photoelectric principle, to directly determine the number and size of impurity particles. The accuracy of this method is relatively high, generally applicable to high bearing on cleanliness requirements. 
 Tianjin imported bearings Sales Co., Ltd. for many years to: SKF import bearing, NSK bearing NTN imported bearings, NACHI imported bearings, KOYO, imported bearings of FAG import bearing, INA imported bearings, TIMKEN imported bearings and other well-known imported bearings sales. 
 The products involved: deep groove ball bearings, cylindrical roller bearings, tapered roller bearings, aligning ball bearings, spherical roller bearings, needle roller bearings, angular contact ball bearings, thrust ball bearings, thrust roller bearings, bearing joints, spherical bearings, linear guide series. 
 Applicable industries: iron and steel metallurgy, port machinery, petrochemical, automobile manufacturing, machine tools and paper industry. 
 Sales all over Guangdong, Guangzhou, Dongguan, Foshan, Chengdu, Shenzhen, Zhongshan, Zhuhai, Wuhan, Shenyang, Taiyuan, Urumqi across the country. 
 Relying on the coastal geographical advantage of Tianjin Port, with the price advantage and quality advantage of the company's products, has developed into a considerable scale bearing trade company. Has its own bonded warehouse in Tianjin Port also won the trust of our customers and support. 


 Tel) 86-022-87887680 (Gujing Li) 
 QQ 1945759772 
 Web site: http://www.sjrxzc.com 


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 Domestic axis number of imported Bearing size category 
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 (ASAHI bearings in China) [Heilongjiang the NTN Chinese agents