19194976688
New energy vehicle bearing ball
The silicon nitride balls produced by our company are light in weight and have excellent wear resistance and corrosion resistance. It is used in applications for new energy vehicles, aerospace and industrial machinery parts.
The advantages of silicon nitride new energy automobile bearing ball products:
light quality, high speed, high hardness,
wear resistance, corrosion resistance, self-lubrication, no magnetic, low friction coefficient of insulation and long service life.
Light weight
High speed of revolution
High hardness
wear-resistant
Corrosion resistance
self-lubricating
Non-magnetic, insulated
Low friction coefficient
Long service life
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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