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introduction：NTNbearing[NTNbearing:NTN A variety of bearing products，therefore 0.01 It is produced by high-precision machining and testing technology in micrometers，From the requirements of both high performance and low cost of ordinary household appliances，Aerospace rockets that can still perform their bearing functions normally in harsh working environments are required， NTN Bearings in all walks of life、Lay the foundation for the development of machinery for various purposes]The causes of failure are often multi-factorial，All factors affecting the design and manufacturing process will be related to the failure of deep groove ball bearings，Analysis is not easy to judge。In general，In general, it can be considered and analyzed from the two aspects of use factors and internal factors。The use factor mainly refers to the installation adjustment、Service and maintenance、Whether the maintenance and repair meet the technical requirements。Installation conditions are one of the first factors in use，Bearings are often improperly in
2015-04-12 Reading quantity 1659
introduction：Aligning roller bearing with taper hole，It is required that the interference amount of the fit is larger than that of the cylindrical hole。A larger amount of interference leads to a decrease in radial clearance，So for taper hole aligning roller bearings，The reduction of radial clearance should be taken into account in the selection，This is important。
2015-04-13 Reading quantity 1593
introduction：SelectNTNbearing[NTNbearing:NTN A variety of bearing products，therefore 0.01 It is produced by high-precision machining and testing technology in micrometers，From the requirements of both high performance and low cost of ordinary household appliances，Aerospace rockets that can still perform their bearing functions normally in harsh working environments are required， NTN Bearings in all walks of life、Lay the foundation for the development of machinery for various purposes]Type time，Comprehensive graspNTNbearing[NTNbearing:NTN A variety of bearing products，therefore 0.01 It is produced by high-precision machining and testing technology in micrometers，From the requirements of both high performance and low cost of ordinary household appliances，Aerospace rockets that can still perform their bearing functions normally in harsh working environments are required， NTN Bearings in all walks of life、Lay the foundation for the development of machinery for various purposes]The conditions of use are crucial。Tianjin Hanhuan
2015-04-14 Reading quantity 1710
introduction：1、Contact fatigue failure Contact fatigue failure refers toNTNbearing[NTNbearing:NTN A variety of bearing products，therefore 0.01 It is produced by high-precision machining and testing technology in micrometers，From the requirements of both high performance and low cost of ordinary household appliances，Aerospace rockets that can still perform their bearing functions normally in harsh working environments are required， NTN Bearings in all walks of life、Lay the foundation for the development of machinery for various purposes]The working surface is subjected to alternating stress and produces failure。Contact fatigue spalling occurs inNTNbearing[NTNbearing:NTN A variety of bearing products，therefore 0.01 It is produced by high-precision machining and testing technology in micrometers，From the requirements of both high performance and low cost of ordinary household appliances，Aerospace rockets that can still perform their bearing functions normally in harsh working environments are required， NTN Bearings in all wa
2015-04-19 Reading quantity 1625
introduction：The ambient temperature at the time of measurement is specified as20℃，amongNTNbearing[NTNbearing:NTN A variety of bearing products，therefore 0.01 It is produced by high-precision machining and testing technology in micrometers，From the requirements of both high performance and low cost of ordinary household appliances，Aerospace rockets that can still perform their bearing functions normally in harsh working environments are required， NTN Bearings in all walks of life、Lay the foundation for the development of machinery for various purposes]、Gauge block、The temperature of standard parts and measuring instruments must be the same，The above method of placing them on the same metal plate is the fastest way to achieve the necessary temperature balance，Otherwise it can take hours or even days to achieve such a balance。We still need to check.NTNbearing[NTNbearing:NTN A variety of bearing products，therefore 0.01 It is produced by high-precision machining and testing technology in micrometers，From the requirements of b
2015-04-21 Reading quantity 1712
introduction：NTNImported bearing[Imported bearing:Simply put, the import bearing agent refers to the sale of an imported bearing brand。The main brands of imported bearings arenskbearing，ikobearing，fagbearing，Of good quality，Of course, the price is not cheap。]After installation，To check that the installation is correct，An operational check is required。Small machines can be turned by hand，To make sure the rotation is smooth。Check items for foreign bodies、scar、Poor operation due to indentation，Due to poor installation，The torque caused by poor machining of the mounting seat is unstable，Because the clearance is too small、Installation error、Seal friction caused by excessive torque and so on。Power operation can begin if there is no anomaly。 Large machinery cannot be rotated manually，So cut off the power immediately after the no-load start，Mechanical idling，Check for vibration、noise、Whether the rotating parts are in contact, etc，After confirming that there are no anomalies，Enter power。 Power operation，Start at low speed with no
2015-04-21 Reading quantity 1581
introduction：one、bearing[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission。Can also be said，When other parts move relative to each other on the shaft，A device used to reduce the coefficient of friction during power transmission and to keep the center of the shaft fixed。]Vibration of NTNVibration of thrust ball bearing is sensitive to bearing damage，exfoliation、impression、corrosion、crack、Wear and tear will be reflected in the bearing vibration measurement，therefore，By using a special bearing vibration gauge（Frequency analyzer）The magnitude of the vibration can be measured，The specific condition of the anomaly cannot be inferred from the frequency division。The measured value is due toNTNThe use conditions of thrust ball bearings or sensor installation positions are different，Therefore, it is necessary to analyze and compare the measured values of each machine in advance to determine the judgment criteria。
2015-04-22 Reading quantity 1626
introduction：The raceway sound is due toNTNbearing[NTNbearing:NTN A variety of bearing products，therefore 0.01 It is produced by high-precision machining and testing technology in micrometers，From the requirements of both high performance and low cost of ordinary household appliances，Aerospace rockets that can still perform their bearing functions normally in harsh working environments are required， NTN Bearings in all walks of life、Lay the foundation for the development of machinery for various purposes]When rotating, the rolling element rolls in the raceway and generates a smooth and continuous noise，It attracts attention only when its sound pressure level or tone is extremely high。In fact, the sound energy stimulated by raceway sound is limited，As in normal circumstances，Of high quality6203NTNbearing[NTNbearing:NTN A variety of bearing products，therefore 0.01 It is produced by high-precision machining and testing technology in micrometers，From the requirements of both high performance and low cost of ordinary household
2015-04-26 Reading quantity 1622
introduction：1、rightNTNImported bearing[Imported bearing:Simply put, the import bearing agent refers to the sale of an imported bearing brand。The main brands of imported bearings arenskbearing，ikobearing，fagbearing，Of good quality，Of course, the price is not cheap。]Life effect
2015-04-27 Reading quantity 1585
introduction：Generally speaking, bearings are imported[Imported bearing:Simply put, the import bearing agent refers to the sale of an imported bearing brand。The main brands of imported bearings arenskbearing，ikobearing，fagbearing，Of good quality，Of course, the price is not cheap。]Hit the markNTNbearing[NTNbearing:NTN A variety of bearing products，therefore 0.01 It is produced by high-precision machining and testing technology in micrometers，From the requirements of both high performance and low cost of ordinary household appliances，Aerospace rockets that can still perform their bearing functions normally in harsh working environments are required， NTN Bearings in all walks of life、Lay the foundation for the development of machinery for various purposes]The quality is very strong，Not the general bearing products can be compared，But even ifNTNbearing[NTNshaft
2015-04-27 Reading quantity 1640
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