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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]Part working surface and core in condition、Structural and performance requirements are quite different,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 fo
2015-04-30 Reading quantity 1563
introduction：Many factors in real life affect bearings[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。]，For example，temperature、Vibration，And so on，These are the factors that affect needle roller bearings，How can these factors be preventedNTNbearing[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]What about the impact，
2015-05-12 Reading quantity 1738
introduction：The amount of material lost due to wear is called the amount of wear。This can be done by measuring the length、Resulting from a change in volume or mass，They are called line wear accordingly、Volume wear and mass wear。 Finished productNTNImported 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 ring must not have grinding burns and grinding cracks，In particular, the taper of the inner ring should not be burned on the matching surface。The ferrule should be fully inspected after pickling，Remove burned products，The severely burned ones that cannot be repaired or those that are unqualified for repair should be scrapped，Rings with grinding burns are not allowed to enter the assembly process。After the steel is stored and before the ring grinding，The processes must be strictly managed，Strict distinctionGCr15andGCr15SiMnTwo different
2015-05-13 Reading quantity 1545
introduction：one,in-placeNTNbearing[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]before，Ensure that the appearance and condition of the device are clean。
2015-05-21 Reading quantity 1714
introduction：1、sensationallyNTNbearing[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]Quality In the process of selling bearings, I found that many customers said that as long as the surface of the bearing is bright, the quality is good，This is wrong。The light of the bearing surface should be a kind of dark light，The reason for this dark light is whether the steel used in the bearing is up to the standard and its grinding process and the cutting fluid used，The first two are the main ones。
2015-05-31 Reading quantity 1846
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]After pressing into the bearing, it should rotate flexibly without blocking。If there is obvious rotation is not flexible，It means that the size of the shaft is too large，Tolerance to be reduced。Such asNTNbearing[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
2015-06-03 Reading quantity 1780
introduction：first、Strict chemical composition requirements normalNTNbearing[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 steel used is mainly high-carbon chromium bearing steel，Thats the carbon content1％around，join1．5％Left and right chromium，And contains small amounts of manganese、Silicon hypereutectoid steel。Chromium can improve heat treatment performance、Improve hardenability、Homogeneity of tissue、Tempering stability，It can also improve the anti-rust properties and grinding properties of steel。But when the chromium level exceeds1．65％when，Quenching will increase the remaining austenite in the steel，Reduced har
2015-06-05 Reading quantity 1742
introduction：Based on the study of the relationship between fracture toughness and other materials and the crack development process，Its not hard to see wherednWhen the value is high and there is a circular stress，The surface treatment of high speed steel and the change of hardening surface depth of high speed steel with low carbon content are of great significance。For this purpose，The surface treatment technology of the material was developed，Can enhance the surface hardness，And produce compressive stress。The surface treated material has the following characteristics：It has good resistance to fatigue cracking，The second stage，The fracture toughness value of the core material is higher due to the low expansion rate of existing cracks and insufficient quenching or low carbon content。 The developed surface treatment processing method includes： laser-wise、Local heat treatment is carried out on the common high speed steel which is not sufficiently quenched by electron beam or induction hardening，To obtain a surface hardened l
2015-06-06 Reading quantity 1674
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 function of coordination is to makeNTNbearing[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 stationary ring and the rotating ring are
2015-06-10 Reading quantity 1867
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]It is one of the important components of construction machinery，Poor installation will affect its use effect，It even causes the failure of construction machinery and equipment。
2015-06-11 Reading quantity 1658
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