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Zys Grinding Media Diameter 12.7mm Silicon Nitride Si3n4 Ceramic Precision Bearing Balls From China Manufacturer1
Bearing Accessories, Ceramic Ball, Steel Ball
Luoyang Bearing Research Institute Co., Ltd.
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Product Description ZYS grinding media Diameter 12.7mm Silicon Nitride Si3n4 Ceramic Precision Bearing Balls from China manufacturerProduct DescriptionThe development history of ZYS silicon nitride ceramic balls:1986-1990 Exploratory research on ceramic bearings1991-1995 Preliminary Research on Ceramic Ball Bearings and Ceramic Balls for Bearings1996-2000 Mass manufacturing technology development of high-speed precision ceramic ball bearings2000-now Comprehensively improve the level of silicon nitride manufacturing Production process of ZYS silicon nitride ceramic balls:Raw material-granulation-pressing-cold isostatic pressure vessel-air pressure sintering vessel-grinding process-testing and inspection-finished product. Quality Assurance System of ZYS silicon nitride ceramic balls:Use laser confocal microscope and ultrasonic scanning microscope for particle size analysis, impurity content analysis, oxygen and nitrogen content analysis, phase composition analysis. Performance testing of ZYS silicon nitride ceramic balls:Density, hardness, vibration value, crushing load, fracture toughness. Product features of ZYS silicon nitride ceramic balls:I. Excellent friction performance1. Since the affinity of steel/ceramic matching is lower than that of steel/steel, when the lubricating film is not formed well or lacks lubrication, the lower affinity can effectively reduce the risk of adhesive friction.2. Due to the high hardness of the ceramic ball, in the case of severe friction, the ceramic ball has good dimensional and shape accuracy retention and repairability to the groove to ensure the bearing running. II. Small spin-to-roll ratioCompared with steel bearings, the spin-to-roll ratio of ceramic ball bearings is about 30% lower, indicating that ceramic ball bearings have better contact conditions and lower spin friction. III. Low temperature riseLess heat; Small deformation; Low coefficient of friction; Small centrifugal force and gyro torque. Item Materials classIIIIIIPropertyBending strength σ3.40 (Mpa)900800600Crushing load ratio (%)353530Hardness (HV10)158014801380Fracture toughness (Mpa.m1/2)6.05.05.0Maximum limit of microstructurePore size (μm)101025Porosity (%)0.020.060.06Crystal phase (μm)101025The second ceramic phase (μm)252525Maximum amount of inclusions per square centimeter of cross sectionRange 200 (μm)001Range 100~200 (μm)012Range 50~100 (μm)124Range 20~50 (μm)4816 Application of Si3N4 ceramic ball G3G5G10, G16G20, G28, G40Class IHigh speed power equipment Main drive bearing Class II Vacuum equipment, high speed instrument, mechanical devices, MotorTesting ball, separating ballClass III Sport, entertainment, food processingMechanical devicesSi3N4 ceramic ball specificationsNominal diameter of ceramic ballNominal diameter of ceramic ballNominal diameter of ceramic ballmminmminmmin0.7941/320.8 1 1.5881/162 2.3813/322.5 3 3.9695/324 4.5 4.7623/165 5.5 5.5567/325.95315/646 6.351/46.5 6.74717/647 7.1449/327.5 7.9385/168.73111/329.5253/811.1127/1612.30331/6412.71/213.49417/3214.2889/1615.08119/3215.8755/819.053/425.4131.751 1/49Cr18, 9Cr18Mo stainless steel ball9Cr18 is high carbon and high chromium martensite stainless bearing steel. After quenching, it has high hardness and wear resistance, high dimensional stability, generally used after quenching and tempering.9Cr18Mo has the same characteristics and application as 9Cr18 steel, but has higher hardness and stability after quenching. Molybdenum can increase the passivation effect of stainless steel. 9Cr18, 9Cr18Mo material chemical compositionSteel gradeCarbonManganeseSiliconChromiumNickelCopperSulfurPhosphorusMolybdenumStainless steel 9Cr180.90/1.00≤0.70≤0.8017.0/19.0≤0.60 ≤0.030≤0.030 Stainless steel 9Cr18Mo 1.00/1.10≤0.80≤0.5016.0/18.0 ≤0.030≤0.0300.40-0.70 9Cr18, 9Cr18Mo material mechanical propertiesHeat treatmentσb Mpaσs %Ψ%HRC/HBWQuenching and tempering state---------≥58 HRCAnnealing state7551427.5230-240 HBW 9Cr18, 9Cr18Mo High carbon chromium stainless steel ball specificationsNominal diameter of steel ballNominal diameter of steel ballNominal diameter of steel ballmminmminmmin0.5 0.6 0.7941/320.8 1 1.5881/162 2.3813/322.5 2.7787/643 3.1751/83.5 3.9695/324 4.5 4.7623/165 5.15913/645.5 5.95315/646 6.351/46.5 6.74717/647 7.1449/327.5 7.9385/168 8.5 9 9.5253/810 11.1127/1612 12.30331/6412.71/213.49417/3214.2889/1615.08119/3215.8755/816.66921/3217.46211/1618.25623/3219.053/420.63813/1622.2257/8ZrO2 ceramic ballZrO2 ceramic has the features of high hardness, high strength, high toughness, high rigidity, high wear resistance, self-lubricity. At the same time, it is used as valve ball in petrochemical , papermaking, metallurgy, electroplating, etc.ZrO2 ceramic ball specificationsNominal diameter of ceramic ballNominal diameter of ceramic ballNominal diameter of ceramic ballmminmminmmin0.5 0.6 0.7941/320.8 1.5881/162.3813/322.5 2.7787/643.1751/83.5 3.9695/324 4.5 4.7623/165 5.15913/645.5 5.95315/646 6.351/46.5 6.74717/647 7.1449/327.5 7.9385/168.5 9.5253/810 11.1127/1612.30331/6412.71/213.49417/3214.2889/1615.08119/3215.8755/816.66921/3217.46211/1618.25623/3219.053/420.63813/1622.2257/8Detailed Photos Company ProfileAbout ZYSLuoyang Bearing Research Institute Co., Ltd. is a hightech enterprise specializing in the development of "highrank, precise, advanced, unique,special" bearing products for the key units in various fields of national economic construction. Its predecessor, Luoyang Bearing Research Institute, was established in 1958. It is the only state level comprehensive research institute in China's bearing industry. In 1999, it entered China National Machinery Industry Group Co., Ltd. and transformed into a science and technology enterprise.We focus on developing high performance bearing products for key units of national economic construction. We perform batch production ofvarious highrank bearing products and components with inner diameter of 0.6mm to outer diameter of 6.8m. We are mainly engaged in the research, development, production and sales of precision bearing, special bearing, highspeed machine tool spindle, bearing special equipment, bearing testing instruments, bearing testing machine and bearing special materials, which are widely used in the fields of machine tools, wind power generation, mine metallurgy, petrochemical, medical equipment, automobiles and rail transit, construction machinery, intelligent manufacturing services, etc.We have total assets of 2.06 billion RMB, own one research and development center, three industrial bases and cover an area of more than 47hectares. We have advanced bearing manufacturing equipments and world first class testing equipments and have solid strength in manufacturing, measuring and testing of bearing and related components with high precision and high reliability. We have more than 380 technical staff of bearing related disciplines, thus we maintain a leading position in the aspects of bearing design, basic theoretical research, lubrication technology, metallic and non-metallic materials, testing and industry standards. Our AdvantagesZYS AdvantageMany scientific research centers, laboratory and service agencies are set in our company, including National Bearing Quality Supervision andInspection Center, National Bearing Accreditation Laboratory, Industrial (Rolling Bearing) Product Quality Control and Technical EvaluationLaboratory, National Rolling Bearing Standardization Technical Committee, ISO/TC4 Domestic Technology Responsible Unit, China BearingIndustry Association Technical Committee, Machinery Industry Occupational Skill Identification Bearing Industry Subcenter, National Rolling Bearing Industry Technology Innovation Strategic Alliance, High end Bearing Tribology Technology and Application NationalLocal Joint Engineering Laboratory, State Key Laboratory of Shield Machine and Boring Technology (Bearing), Machinery Industry Highspeed Precision Bearing Engineering Research Center, Henan Province Machine Tool Spindle Unit Engineering Research Center, Henan Province High Performance Bearing Technology Key Laboratory, National Postdoctoral Research Workstation, Henan Province Bearing Generic Technology Academician Workstation, State Intellectual Property Office Patent Exchange Station and so on. We have so far achieved 908 major scientific research achievements, among which there are 31 awards of National Invention Awards and National Science and Technology Progress Awards, and 234 awards of provincial scientific and technological achievement awards.We have attained 792 granted patents, among which there are 277 patents for inventions. In addition, we established and revised the bearing industry technical standards for over 670 times, and also issued 457 volumes of "Bearing" magazine.GloryTop 200 most promising companies of China in ForbesTop 500 in China Machinery IndustryExcellent Enterprise with China Well-know TrademarkHigh-performance Bearings LaboratoryState Quality Supervision and Testing Center for BearingISO/TC4 China SecretariatThe Research Center for High-speed Precision Bearing Engineering in Machinery Industry...ZYS MANUFACTURING CAPACITYZYS Quality assurance Exhibition ZYS bearing productsContact usAddress: No. 1 Jilin Road, Luoyang City, Henan, Province, China.Zip Code: 471039Website: chinazys.en.made-in-china.com
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