Zys 1/8 Inch Ceramic Bearing Balls Si3n4 Silicon Nitride Ball G5 Precision
China Zys 1/8 Inch Ceramic Bearing Balls Si3n4 Silicon Nitride Ball G5 Precision, Find details about China Si3n4 Ceramic Ball, Bearing from Zys 1/8 Inch Ceramic Bearing Balls Si3n4 Silicon Nitride Ball G5 Precision
ZYS 1/8 Inch Ceramic Bearing Balls Si3N4 Silicon Nitride Ball G5 Precision
Si3N4 is a new kind of bearing material with several good features, it possesses high temperature resistance, corrosion resistance, insulation, non-magnetism, high strength, low density and other features. In the application of bearing, it possesses low friction, low temperature rise, high rigidity, low centrifugal force and other features. It can implement high speed, high precision, high temperature, high rigidity, corrosion resistance and other good features.
The high precision and high performance silicon nitride bearing ball is manufactured by spray-drying process, near-net-shape, cold isotatic pressing, GPS-HIP combined sintering, compounded abrasive lapping process effectively. The precision grade of it is G5, the materials class is I.
ZYS Si3N4 ceramic ball material grades
| Class Item | Materials class | |||
| I | II | III | ||
| Property | Bending strengthσ3.40(Mpa) | 900 | 800 | 600 |
| Crushing load ratio(%) | 35 | 35 | 30 | |
| Hardness(HV10) | 1580 | 1480 | 1380 | |
| Fracture toughness(Mpa.m1/2) | 6.0 | 5.0 | 5.0 | |
| The limit does of fiber structure | Pore size(μm) | 10 | 10 | 25 |
| Porosity(%) | 0.02 | 0.06 | 0.06 | |
| Crystal phase(μm) | 10 | 10 | 25 | |
| The second ceramic phase(μm) | 25 | 25 | 25 | |
| The maximum of inclusion of transverse section every Square centimeter | Range 200(μm) | 0 | 0 | 1 |
| Range 100~200(μm) | 0 | 1 | 2 | |
| Range 50~100(μm) | 1 | 2 | 4 | |
| Range 20~50(μm) | 4 | 8 | 16 | |
Examples of Si3N4 ceramic ball's common applications
| G3 | G5 | G10 G16 | G20 G28 G40 | |
| Class I | High speed power equipment Space mechanism Aircraft instrument | Liquid oxygen pump Active shaft bearing | The key parts of aerospace equipment | |
| Class II | Molecular turbo-pump High precision star bearing | Vacuum equipment, high speed instrument, mechanical devices, high performance and the most advanced contacting spherical propeller | Motor, medium-low precision star bearing | Testing bearing ball, separating bearing ball |
| Class III | Sport, entertainment, food processing | Mechanical devices |
ZYS Si3N4 ceramic ball specifications
| The nominal diameter of bearing ball | The nominal diameter of bearing ball | The nominal diameter of bearing ball | |||
| mm | in | mm | in | mm | in |
| 1/32 | 5 | 8.731 | 11/32 | ||
| 0.8 | 5.5 | 9.525 | 3/8 | ||
| 1 | 5.556 | 7/32 | 11.112 | 7/16 | |
| 1.588 | 1/16 | 5.953 | 15/64 | 12.303 | 31/64 |
| 2 | 6 | 12.7 | 1/2 | ||
| 2.381 | 3/32 | 6.35 | 1/4 | 13.494 | 17/32 |
| 2.5 | 6.5 | 14.288 | 9/16 | ||
| 3 | 6.747 | 17/64 | 15.081 | 19/32 | |
| 3.969 | 5/32 | 7 | 15.875 | 5/8 | |
| 4 | 7.144 | 9/32 | 19.05 | 3/4 | |
| 4.5 | 7.5 | 25.4 | 1 | ||
| 4.762 | 3/16 | 7.938 | 5/16 | 31.75 | 1 1/4 |
Note: The special specification can be manufactured after negotiating
ZYS Ceramic ball workshop:
ZYS 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 bearing products
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Address: No.1 Jilin Road, Luoyang City, Henan, Province, China.
Zip Code:471039
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