• ZYS Rolling Element Precision Bearing Ball 9cr18/9cr18mo Stainless Chrome Steel Ball, Silicon Nitride Ceramic Balls, Zro2 Zirconia Ceramic Ball G10 for Bearing
  • ZYS Rolling Element Precision Bearing Ball 9cr18/9cr18mo Stainless Chrome Steel Ball, Silicon Nitride Ceramic Balls, Zro2 Zirconia Ceramic Ball G10 for Bearing
  • ZYS Rolling Element Precision Bearing Ball 9cr18/9cr18mo Stainless Chrome Steel Ball, Silicon Nitride Ceramic Balls, Zro2 Zirconia Ceramic Ball G10 for Bearing
  • ZYS Rolling Element Precision Bearing Ball 9cr18/9cr18mo Stainless Chrome Steel Ball, Silicon Nitride Ceramic Balls, Zro2 Zirconia Ceramic Ball G10 for Bearing
  • ZYS Rolling Element Precision Bearing Ball 9cr18/9cr18mo Stainless Chrome Steel Ball, Silicon Nitride Ceramic Balls, Zro2 Zirconia Ceramic Ball G10 for Bearing
  • ZYS Rolling Element Precision Bearing Ball 9cr18/9cr18mo Stainless Chrome Steel Ball, Silicon Nitride Ceramic Balls, Zro2 Zirconia Ceramic Ball G10 for Bearing

ZYS Rolling Element Precision Bearing Ball 9cr18/9cr18mo Stainless Chrome Steel Ball, Silicon Nitride Ceramic Balls, Zro2 Zirconia Ceramic Ball G10 for Bearing

Customized: Non-Customized
Certification: CE, ISO
Standard Parts: Yes
Universal: Yes
Material: Galvanized Steel, Plastic, Brass Steel and Others
Hardness: 58-65 HRC Bearing Ball
Samples:
US$ 0.1/Piece 1 Piece(Min.Order)
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Overview

Basic Info.

Model NO.
1.588mm
Shape
Polish Round Bearing Steel Ball
Grade
G10-G1000 Chrome Steel Ball
Application
Bearing, Solid Bicycle, Motor, Machinery, Tools
Product Name
High-Carbon Stainless Chrome Steel Ball
Structure
Solid Chrome Steel Ball
Size Range
0.5mm-180mm Chrome Steel Ball
Accuracy Grade
G3 G5 G10 G25 G40
Ball Material
Steel Ball, Ceramic Ball, Si3n4 ,Zro2
Color
White, Black
Compressive Strength
Above 3500
Use Upper Limit Temperature
800-1250
Vickers Hardness
1400~1800
Density
3.19~3.3
Use
Light Duty Bearing,Conveyer Belt, Bicycle
Transport Package
Cases and Pallets or as Customer′s Requirment
Specification
38.1-180mm
Trademark
ZYS/OEM
Origin
Luoyang, Henan, China
Production Capacity
400000/Month

Product Description

ZYS rolling element precision bearing ball 9Cr18/9cr18Mo Stainless Chrome Steel Ball, silicon nitride ceramic balls, ZrO2 Zirconia ceramic ball G10 for Bearing 

Product Description
The development history of ZYS silicon nitride ceramic balls:
1986-1990 Exploratory research on ceramic bearings
1991-1995 Preliminary Research on Ceramic Ball Bearings and Ceramic Balls for Bearings
1996-2000 Mass manufacturing technology development of high-speed precision ceramic ball bearings
2000-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 performance
1. 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 ratio
Compared 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 rise
Less heat; Small deformation; Low coefficient of friction; Small centrifugal force and gyro torque.
 
Item                              Materials class
IIIIII
PropertyBending strength σ3.40 (Mpa)900800600
Crushing load ratio (%)353530
Hardness (HV10)158014801380
Fracture toughness (Mpa.m1/2)6.05.05.0
Maximum limit of microstructurePore size (μm)101025
Porosity (%)0.020.060.06
Crystal phase (μm)101025
The second ceramic phase (μm)252525
Maximum amount of inclusions 
per square centimeter of cross section
Range 200 (μm)001
Range 100~200 (μm)012
Range 50~100 (μm)124
Range 20~50 (μm)4816
 
Application of Si3N4 ceramic ball
 G3G5G10, G16G20, G28, G40
Class IHigh speed power equipment 

Main drive bearing

 
 
Class II
 
Vacuum equipment, 
high speed instrument, 
mechanical devices, 


 
MotorTesting ball, separating ball
Class III  Sport, entertainment,
 food processing
Mechanical devices
Si3N4 ceramic ball specifications
Nominal diameter of  ceramic ballNominal diameter of ceramic ballNominal diameter of  ceramic ball
mminmminmmin
0.7941/320.8 1 
1.5881/162 2.3813/32
2.5 3 3.9695/32
4 4.5 4.7623/16
5 5.5 5.5567/32
5.95315/646 6.351/4
6.5 6.74717/647 
7.1449/327.5 7.9385/16
8.73111/329.5253/811.1127/16
12.30331/6412.71/213.49417/32
14.2889/1615.08119/3215.8755/8
19.053/425.4131.751 1/4


9Cr18, 9Cr18Mo stainless steel ball

9Cr18 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 composition
Steel gradeCarbonManganeseSiliconChromiumNickelCopperSulfurPhosphorusMolybdenum
Stainless 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 properties
Heat treatmentσb Mpaσs %Ψ%HRC/HBW
Quenching and tempering state---------≥58 HRC
Annealing state7551427.5230-240 HBW
 9Cr18, 9Cr18Mo High carbon chromium stainless steel ball specifications
Nominal diameter of steel ballNominal diameter of steel ballNominal diameter of steel ball
mminmminmmin
0.5 0.6 0.7941/32
0.8 1 1.5881/16
2 2.3813/322.5 
2.7787/643 3.1751/8
3.5 3.9695/324 
4.5 4.7623/165 
5.15913/645.5 5.95315/64
6 6.351/46.5 
6.74717/647 7.1449/32
7.5 7.9385/168 
8.5 9 9.5253/8
10 11.1127/1612 
12.30331/6412.71/213.49417/32
14.2889/1615.08119/3215.8755/8
16.66921/3217.46211/1618.25623/32
19.053/420.63813/1622.2257/8


ZrO2 ceramic ball

ZrO2 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 specifications
Nominal diameter of ceramic ballNominal diameter of ceramic ballNominal diameter of ceramic ball
mminmminmmin
0.5 0.6 0.7941/32
0.8 1.5881/162.3813/32
2.5 2.7787/643.1751/8
3.5 3.9695/324 
4.5 4.7623/165 
5.15913/645.5 5.95315/64
6 6.351/46.5 
6.74717/647 7.1449/32
7.5 7.9385/168.5 
9.5253/810 11.1127/16
12.30331/6412.71/213.49417/32
14.2889/1615.08119/3215.8755/8
16.66921/3217.46211/1618.25623/32
19.053/420.63813/1622.2257/8
Detailed Photos

 

ZYS Rolling Element Precision Bearing Ball 9cr18/9cr18mo Stainless Chrome Steel Ball, Silicon Nitride Ceramic Balls, Zro2 Zirconia Ceramic Ball G10 for Bearing
ZYS Rolling Element Precision Bearing Ball 9cr18/9cr18mo Stainless Chrome Steel Ball, Silicon Nitride Ceramic Balls, Zro2 Zirconia Ceramic Ball G10 for Bearing

 

Company Profile

About ZYS
Luoyang 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 of
various 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 47
hectares. 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.

 

ZYS Rolling Element Precision Bearing Ball 9cr18/9cr18mo Stainless Chrome Steel Ball, Silicon Nitride Ceramic Balls, Zro2 Zirconia Ceramic Ball G10 for Bearing
ZYS Rolling Element Precision Bearing Ball 9cr18/9cr18mo Stainless Chrome Steel Ball, Silicon Nitride Ceramic Balls, Zro2 Zirconia Ceramic Ball G10 for Bearing
ZYS Rolling Element Precision Bearing Ball 9cr18/9cr18mo Stainless Chrome Steel Ball, Silicon Nitride Ceramic Balls, Zro2 Zirconia Ceramic Ball G10 for Bearing

 

Our Advantages

ZYS Advantage
Many scientific research centers, laboratory and service agencies are set in our company, including National Bearing Quality Supervision and
Inspection Center, National Bearing Accreditation Laboratory, Industrial (Rolling Bearing) Product Quality Control and Technical Evaluation
Laboratory, National Rolling Bearing Standardization Technical Committee, ISO/TC4 Domestic Technology Responsible Unit, China Bearing
Industry 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.

ZYS Rolling Element Precision Bearing Ball 9cr18/9cr18mo Stainless Chrome Steel Ball, Silicon Nitride Ceramic Balls, Zro2 Zirconia Ceramic Ball G10 for Bearing
ZYS Rolling Element Precision Bearing Ball 9cr18/9cr18mo Stainless Chrome Steel Ball, Silicon Nitride Ceramic Balls, Zro2 Zirconia Ceramic Ball G10 for Bearing



Glory
Top 200 most promising companies of China in Forbes
Top 500 in China Machinery Industry
Excellent Enterprise with China Well-know Trademark
High-performance Bearings Laboratory
State Quality Supervision and Testing Center for Bearing
ISO/TC4 China Secretariat
The Research Center for High-speed Precision Bearing Engineering in Machinery Industry...


ZYS MANUFACTURING CAPACITY
ZYS Rolling Element Precision Bearing Ball 9cr18/9cr18mo Stainless Chrome Steel Ball, Silicon Nitride Ceramic Balls, Zro2 Zirconia Ceramic Ball G10 for Bearing
ZYS Quality assurance
ZYS Rolling Element Precision Bearing Ball 9cr18/9cr18mo Stainless Chrome Steel Ball, Silicon Nitride Ceramic Balls, Zro2 Zirconia Ceramic Ball G10 for Bearing

Exhibition

 

ZYS Rolling Element Precision Bearing Ball 9cr18/9cr18mo Stainless Chrome Steel Ball, Silicon Nitride Ceramic Balls, Zro2 Zirconia Ceramic Ball G10 for Bearing
ZYS Rolling Element Precision Bearing Ball 9cr18/9cr18mo Stainless Chrome Steel Ball, Silicon Nitride Ceramic Balls, Zro2 Zirconia Ceramic Ball G10 for Bearing




ZYS bearing products
ZYS Rolling Element Precision Bearing Ball 9cr18/9cr18mo Stainless Chrome Steel Ball, Silicon Nitride Ceramic Balls, Zro2 Zirconia Ceramic Ball G10 for Bearing

Contact us

Address: No. 1 Jilin Road, Luoyang City, Henan, Province, China.
Zip Code: 471039
Website: chinazys.en.made-in-china.com


 

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Diamond Member Since 2014

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5.0
Audited Supplier

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Manufacturer/Factory
Number of Employees
708
Management System Certification
ISO9001:2008, Weapon Equipment Quality Management System Certificate