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Chemical bearing ball
The silicon nitride chemical bearing ball produced by our company has excellent properties such as high strength, wear resistance, corrosion resistance, high temperature resistance, electrical insulation and non-magnetic properties that metal does not have. The silicon nitride bearing ball produced by our company is the ideal product for the chemical industry, and the specifications of the ball can be customized according to customer needs.
Advantages of silicon nitride chemical bearing ball products:
High hardness, good wear resistance, long service life
High temperature resistance, high strength and hardness even at 1200℃
Low density, high density
Self-lubricating never rusts
Low thermal expansion coefficient, high thermal shock resistance
Acid and alkali protection
Non-magnetic and electrically insulating
It does not adhere to metals at high temperatures and almost does not react
The ceramic performance table:
Density(g/cm3) | Relative Density(%) | Elastic modulus(GPa) | Crushing load ratio（%） | Hardness（HV） |
3.2±0.05 | >99.5 | 40-310 | ≥40 | ≥14.2 |
Thermal expansion coefficient（MPa.m） | Bending strength with 3 points（MMPa） | Poisson's ratio | Coefficient of linear expansion(X10-6/K) | Webb's modulus |
6.0~7.0 | ≥820 | 0.25 | 3.0~3.2 | 10~12 |
Thermal conductivity(W/m.k) | Specific resistivity(Ω.cm) | Acid and alkali corrosion resistance | Dimensional stability | Magnetism |
15-20 | 1014 | Excellent | Excellent | NO |
Ball grade:
Unit: μm (reference GB/T 31703-2015) | ||||
Ball level | Ball diameter variation | Spherical error | Variation of batch diameter | Surface roughness |
Vdws | △Sph | Vdwl | Ra | |
mаx | max | Max | max | |
G3 | 0.08 | 0.08 | 0.13 | 0.01 |
G5 | 0.13 | 0.13 | 0.25 | 0.014 |
G10 | 0.25 | 0.25 | 0.5 | 0.02 |
G16 | 0.4 | 0.4 | 0.8 | 0.025 |
G20 | 0.5 | 0.5 | 1.0 | 0.032 |
G24 | 0.6 | 0.6 | 1.2 | 0.04 |
G28 | 0.7 | 0.7 | 1.4 | 0.05 |
G40 | 1.0 | 1.0 | 2.0 | 0.06 |
G60 | 1.5 | 1.5 | 3.0 | 0.08 |
G100 | 2.5 | 2.5 | 5.0 | 0.10 |
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Jiangxi Silicon Nitride New Material Co., LTD  Building 19, Phase 4, Electronic Information Industrial Park, Hedong Industrial Park, Nancheng County, Fuzhou City, Jiangxi Province
19194976688 16679068073 sales@sixny.com.cn |
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