ASAHI is bearing distributor (Gansu the NSK level distributors) 
 ASAHI is bearing distributor (Gansu the NSK level distributors) 
 Common failure modes are: 
 Cracks and fracture 
 Material defects and improper heat treatment, with the amount of interference is too large, the combination of poorly designed, such as the bearing surface grooves caused by the stress concentration, etc., will form a ring crack and fracture. 
 Galvanic Corrosion 
 Current through the bearings, will produce a small spark, resulting in contact with the surface partial annealing pits or black bright spot. In serious condition into the larger pit. 
 Spalling fatigue 
 Under alternating load effect of the surface metal of the contact surface was exfoliated, and gradually expand in the ASAHI spherical bearing raceways or rolling surface, the formation of pits. Continue to operate, will form an area of ??flaking region. Due to improper installation or the local area will enable the bearing of the centerline of the bearing bore and shaft tilt reason to bear a greater load to early fatigue failure. 
 Maintain the aircraft damage 
 Rolling, especially high-speed bearings, cage and rolling element contact or ring at the wear, due to lack of lubricant, so that collision, and even lead to cage fracture. 

 NSK Bearings with the role of the stationary ring makes bearings and rotations, respectively, and the stationary part of the installation position (usually the bearing) and the rotating part (usually the shaft) consolidation together in order to achieve a pass in a rotating state load and limit The basic tasks of the movement system relative to the stationary location. Shaft and bearing, roller bearing requirements in three directions, radial, axial and tangential direction is fixed in its position. Radial and tangential orientation by the tight fit of the bearing rings adopt to achieve the axial position only in rare cases, a tight fit; commonly used parts of the axial limit, such as end cap and retaining ring axial position limit within the scope of the clearance. 
 ASAHI is bearing distributor (Gansu the NSK level distributors) 
 NSK Bearings are important parts in the machinery, it can be said mechanical joints, and we humans, if there is no joint that is not without joints would be paralyzed, then what role it? Then there is no What is the use of the machinery is the same, no bearings, mechanical use up, so the machinery can not do without bearing left bearing live, would be tantamount to waste. NSK Bearings to use very complex, and some rolling bearings need to be used in conjunction with the general and technical personnel to know the knowledge, we generally people do not know, we have the following for you tell us about the Rolling with the use and requirements, after you are familiar with the bearings know that the RBI base. 

 The wave of components in the case of the close tie between the bearing ring and the bearing or drive shaft, the bearing ring may be deformed shape to match adjacent parts. If the deformation, in operation it may lead to vibration. Therefore, the bearing and the shaft is machined to the required tolerance is very important. 
 Local damage due to the operation or installation errors, the small part of the bearing raceway and rolling element may be damaged. Running, rolling across the damaged bearing components will generate a specific vibration frequency. Frequency analysis to identify the damaged bearing components. The vibration behavior of applications in many applications, the bearing stiffness and the stiffness of the structure around the same. Because of this characteristic, correctly select the needle roller bearings (including pre-load and clearance) and its configuration in the application, it is possible to reduce vibration applications. 
 There are three ways to reduce the vibration of the needle bearing: 
 One remove from the application of the critical excitation vibration. 
 Suppressing resistance to stimulate critical excitation vibration parts and resonance between components. 
 Change the stiffness of the structure, thus changing the critical frequency. 
 Commonly used rolling mill bearing lubrication 
 ASAHI is bearing distributor (Gansu the NSK level distributors) 
 First, the method of lubrication 
 Other lubrication of rolling bearings and roller bearing lubrication principles are basically the same, just roll bearings is relatively poor working conditions, its performance to the availability of effective depends largely on the bearing lubrication. 
 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 

 7003C/DT 436 103 7003CD/DT 7003CDT B7003C.DT 7003CDT 17 * 35 * 20 angular contact ball bearings 
 7004C/DT 436 104 7004CD/DT 7004CDT B7004C.DT 7004CDT 20 * 42 * 24 angular contact ball bearings 
 7005C/DT 436 105 7005CD/DT 7005CDT B7005C.DT 7005CDT 25 * 47 * 24 angular contact ball bearings 
 7006C/DT 436 106 7006CD/DT 7006CDT B7006C.DT 7006CDT 30 * 55 * 26 angular contact ball bearings 
 7007C/DT 436 107 7007CD/DT 7007CDT B7007C.DT 7007CDT 35 * 62 * 28 angular contact ball bearings 
 7008C/DT 436 108 7008CD/DT the 7008CDT B7008C.DT 7008CDT 40 * 68 * 30 angular contact ball bearings 
 7009C/DT 436 109 7009CD/DT 7009CDT B7009C.DT 7009CDT 45 * 75 * 32 angular contact ball bearings 
 7010C/DT 436.11 thousand 7010CD/DT 7010CDT B7010C.DT 7010CDT 50 * 80 * 32 angular contact ball bearings 
 7011C/DT 436 111 7011CD/DT 7011CDT B7011C.DT 7011CDT 55 * 90 * 36 angular contact ball bearings 
 7012C/DT 436 112 7012CD/DT the 7012CDT B7012C.DT 7012CDT 60 * 95 * 36 angular contact ball bearings 
 7013C/DT 436 113 7013CD/DT the 7013CDT B7013C.DT 7013CDT 65 * 100 * 36 angular contact ball bearings 
 7014C/DT 436 114 7014CD/DT 7014CDT B7014C.DT 7014CDT 70 * 110 * 40 angular contact ball bearings 

 Domestic axis number of imported Bearing size category 
 New models and old models SKF NSK FAG NTN 
 81102 9102 81102 81102 81102 81102T2 15 * 28 * 9 thrust roller bearings 
 81103 9103 81103 81103 81103 81103T2 17 * 30 * 9 thrust roller bearings 
 81104 9104 81104 81104 81104 81104T2 20 * 35 * 10 thrust roller bearings 

 ASAHI is bearing distributor (Gansu the NSK level distributors)