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introduction： 1 Impact 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。]Material factor of life Early failure forms of rolling bearings，Mainly ruptured、Plastic deformation、wear、Corrosion and fatigue，Under normal conditions it is mainly contact fatigue。Failure of bearing parts in addition to service conditions，Mainly by the hardness of steel、intensity、toughness、
2015-04-13 Reading quantity 1442
introduction： KOYObearing[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。]The use of machine tools is mainly used in the following three parts：Principal axis、Ball screw and general drive shaft。 Principal axisKOYOBearings are used as basic parts of machine tools，Its performance directly affects the speed of the machine tool、Turning accuracy、rigidity、Antiflutter vibration
2015-04-13 Reading quantity 1650
introduction：Previously, we have mentioned how to select bearings according to the basic dynamic load rating[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。]，When using rolling bearings at high temperatures，Bearing hardness decline，Lower fatigue life than at normal temperature。therefore，The basic dynamic load rating should be estimated accordingly。Amended as below。 Ct=
2015-04-13 Reading quantity 1551
introduction： A scientific method of product testing。It follows the technical specifications proposed by the industry or users﹐Special equipment is designed to form a test system﹐The functional characteristics of the product are obtained by simulating the operating environment and working conditions﹑reliability﹑stability﹑Parameters of intrinsic quality such as working life and environmental adaptability。Testing is a basic work in the research and development of machinery industry﹐Comprehensive quality evaluation for the adoption of new technologies and the development of new products﹐It provides the main technical basis for the decision。 Test and inspection
2015-04-13 Reading quantity 2787
introduction： Solid EdgeLarge assembly of the entire product can be easily completed。Developed by top-down and bottom-up assembly technology2D/3DA hybrid design approach，Enable assembly design to work together in the working group，And ensure the normal assembly of the whole product。Efficient assembly methods and intelligent assembly，Improved assembly efficiency。Distribution and association of assembly sketches，The associated design of assembly has been further strengthened；Up to date“Zero D”And virtual real part design techniques，The virtual assembly structure is associated with the 3D and 2D data of the actual model，Expanded the entire assembly
2015-04-13 Reading quantity 2774
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： Bearing vibration is very sensitive to bearing damage，exfoliation、impression、corrosion、crack、Wear and so on will be reflected in the vibration measurement of four row cylindrical roller bearings，therefore，By using a special bearing vibration gauge（Frequency analyzer）Vibration can be measured
2015-04-13 Reading quantity 1549
introduction： Unit 10 1.Common words： electionvotecertaintyloyaltydeclinedemocratstrategypursueimpactheadquarterseconomystircongressrepresentative 2.Common phrase： toidentify……as impacton 3.Common sentence： 1）Candidatestryto
2015-04-13 Reading quantity 2876
introduction：1Appearance characteristic Bearing for vibration[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。]： A.The diameter of the rolling element is increased，The length of the rolling element is increased。 B.The cage is guided by the outer rim，Reduce the force on the roller。 C.Guide roller with inner rim，Improve roller operation。
2015-04-13 Reading quantity 1377
introduction：Metal cuttingｍｅｔａｌｃｕｔｔｉｎｇ Machine toolｍａｃｈｉｎｅｔｏｏｌ Metal technologyｔｅｃｈｎｏｌｏｇｙｏｆｍｅｔａｌｓ cutterｃｕｔｔｅｒ rubｆｒｉｃｔｉｏｎ joinｌｉｎｋ driveｄｒｉｖｅ/ｔｒａｎｓｍｉｓｓｉｏｎ shaftｓｈ
2015-04-13 Reading quantity 1514
introduction：a。 FAGImported 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。]The oil bath is smooth Oil bath smooth is the mostFAGImported 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。]In the ordinary smooth way，Low fit、Smooth medium speed bearing。will
2015-04-13 Reading quantity 1395
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