(ASAHI bearing agents) Jingzhou NSK agent " 
 (ASAHI bearing agents) Jingzhou NSK agent " 
 , ASAHI, spherical bearings abnormal operation characteristics and diagnostic skills 
 Serious failure of these mobile bearing is often sudden catastrophic such as bearings, adhere to the frame suddenly snapped and the bearing inner and outer circle sudden burning fracture will inevitably enter the business and equipment now because of fake and shoddy bearing. These failures will cause the rotor axle, heavy rotor or equipment scrapped. In recent years, I actually often encountered in such cases. Therefore, the actual monitoring and diagnosis must be diagnosed as soon as possible the ASAHI spherical bearing status is good or bad, and timely replacement of counterfeit bearings, to prevent the occurrence of major accidents. A large number of such incidents, but also accumulated some practical tips, such bearings in the device after the early running, monitoring the vibration state, and spectral analysis. Bearings in the early running, its spectrum has its own unique characteristics, namely, the equipment, the frequency is generally not accounted for the main ingredients. But the vibration total value of small vibration standards (such as the ISO 2372 specification) to judge the vibration is qualified 
 2) cold rolling forming 
 Cold rolling expansion process is one that enhances the utilization of materials, increase the density of the metal structure, to keep the stream of metal to the advanced technology of the linear method, it is a scrap processing methods. In theory, cold rolled formed products were not turning the heat treatment and grinding. At present, the cold rolling process is mainly used in small deep groove ball NSK one-way bearing, as its main process: 
 (ASAHI bearing agents) Jingzhou NSK agent " 
 The rough forging (ring) - turning (in addition to the channel) - Rolling (groove and chamfer) diameter - soft grinding both ends of the surface. 
 The process of cold rolling and forging molding process, the accuracy of the product in addition to affected by the precision equipment, but also by the effects of mold precision. 
 3) Turning Shaping: 
 NSK one-way bearing industry, turning molding technology is the use of special lathe with centralized processing method to complete the molding process. However, due to the method used by the device to adjust the difficulty, low-precision machine tools, material utilization is low, the process is being phased out. 
 With the development of science and technology, the rapid development of CNC turning machines, and has improved steadily. At present, a number of complex shape, high precision products are increasingly using the molding technology of CNC turning. 
 In summary, the rings forming the direction should be toward the development of a metal material utilization is high, high efficiency, high precision molding direction. Therefore, the high-speed upsetting, cold ring rolling technology, CNC turning molding technology will be more and more applications. 
 2, good lubricity 
 Maintain uniform oil film between the spindle and bearing contact surfaces, and impact load in the spindle start or stop the movement when the film is not caused by destruction, to maintain good lubrication performance is paramount to reduce friction and frictional heat, reducing the spindle temperature rise to ensure that the role of the machining accuracy, and has good lubricating properties. 

 (ASAHI bearing agents) Jingzhou NSK agent " 
 3, good oxidation resistance 
 Machine tool spindle in the circulation lubrication, spindle bearing oil without deterioration of long-term use of so require a good resistance to oxidation. 

 4, good rust resistance 
 Due to oil in the process of spindle lubrication system will inevitably mixed with condensed water in the air or machine tool coolant, oil has good rust resistance. 
 Thrust ball bearings, the grease is critical. If the deterioration of the grease, not only to achieve its proper role away will damage the thrust ball bearings. 
 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) 86-022-8788 7680 (Gujing Li) 
 QQ 1945 759 772 
 Website: http://ww w.sjrxzc.com 



 7316AC/DF 346 316 - 7316ADF - 7316DF 80 * 170 * 78 angular contact ball bearings 
 7317AC/DF 346 317 - 7317ADF - 7317DF 85 * 180 * 82 angular contact ball bearings 
 7318AC/DF 346 318 - 7318ADF - 7318DF 90 * 190 * 86 angular contact ball bearings 
 7319AC/DF 346319 - 7319ADF - 7319DF 95 * 200 * 90 angle contact ball bearings 
 7320AC/DF 346 320 - 7320ADF - 7320DF 100 * 215 * 94 angular contact ball bearings 
 7321AC/DF 346321 - 7321ADF - 7321DF 105 * 225 * 98 angle contact ball bearings 
 7322AC/DF 346322 - 7322ADF - 7322DF 110 * 240 * 100 angle contact ball bearings 
 7324AC/DF 346 334 - 7324ADF - 7324DF 120 * 260 * 110 angle contact ball bearing 
 7326AC/DF 346 326 - 7326ADF - 7326DF 130 * 280 * 116 angular contact ball bearings 
 7328AC/DF 346 328 - 7328ADF - 7328DF 140 * 300 * 124 angular contact ball bearings 
 7330AC/DF 346.33 thousand - 7330ADF - 7330DF 150 * 320 * 130 angular contact ball bearings 
 7332AC/DF 346 332 - 7332ADF - 7332DF 160 * 340 * 136 angular contact ball bearings 
 7334AC/DF 346 334 - 7334ADF - 7334DF 170 * 360 * 144 angle contact ball bearing 
 Domestic axis number of imported Bearing size category 
 New models and old models SKF NSK FAG NTN 
 7336AC/DF 346 336 - 7336ADF - 7336DF 180 * 380 * 150 angle contact ball bearing 
 7338AC/DF 346 338 - 7338ADF - 7338DF 190 * 400 * 156 angular contact ball bearings 
 7340AC/DF 346.34 thousand - 7340ADF - 7340DF 200 * 420 * 160 angular contact ball bearings 
 (ASAHI bearing agents) Jingzhou NSK agent "