86-10-65492826-8288
No. 1, Hongsongyuan, Chaoyang Dist., Beijing, China (Mainland)
Bearing
1. Silicon Nitride Ceramic Bearing Roller
1.Manufacture silicon nitride balls from 1995;
2.Silicon nitride ball powder import form Europe;
3.Competitive price and satisfaction services;
4.Plenty stocks.
2. Silicon Nitride(Si3N4)Ceramic Properties:
Density g/cm3 | Relative density % | Elastic modulus GPa | Compression strength ratio(25℃)% | Hardness(HV)GPa |
3.260.02 | >99.5 | 300~320 | 40~50 | 16 - 20 |
Fracture toughness /MPa•m1/2 | Bending trength MPa | Poisson's ratio | Linear expansion coefficient 10-6K-1 | Webuller modulus |
6.0~9.0 | 600~1000 | 0.25 | 3.1~3.3 | 12~15 |
Thermal conductivity W•(m•K)-1 | Specific resistance ratio | Corrosion resistance | Size stability | Magnetic |
15~20 | 1018 | Excellent | Excellent | None |
3. Application:
It is widely used in aerospace, mechanical industry, chemical industry and petroleum industry. Specified for use in such high-technology industries such as hybrid bearings, aerospace and defense.
4. Every step quality control
1.Raw material checking when suppliers deliver to our factory to ensure no quality problem at the very beginning;
2.Instrument and equipment checking every time before use.
3.Size checking, roundness checking, crushing load test etc. by special measuring tool.
5. Fair
We have been to a lot fairs and the latest fair is 2015 HANNOVER MESSE Germany.
6. Company introduction
Founded in 1963, Beijing Sinoma Synthetic Crystals Co, LTD.Is a hitech state enterprise, belongs to the China
National Materials Group Co., Ltd. An excellent technical team headed by the state level experts has built up,
which provides a reliable guarantee for the continuous and rapid technological development.
7. Contact
Please contact us for more detail and correct products!
Whatsapp: 86+13053352032
