Home > Products > Ceramic balls > silicon nitride ceramic ball bearing,Si3N4 ceramic bearing
silicon nitride ceramic ball bearing,Si3N4 ceramic bearing
- 10000000 Piece / Pieces per Month
- Qingdao Port Tianjin Port
- T/T
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Product Details
Place of Origin: | Shandong, China | Brand Name: | sinoma | Model Number: | silicon nitride ball |
Material: | Ceramic |
Product Description
Ceramic ball
1. Product detail:
1.Manufacture silicon nitride balls from 1995;
2.Silicon nitride ball powder import form Europe;
3.Competitive price and satisfaction services;
4.Plenty stocks.
Material: slicon Nitride Ceramic
Size Range: 0.8mm~101.6mm
Grade: G5~G100
2. Packing:
Standard exporting vacuum package, Carton box; Or according customer demand.
3. Grade of silicon nitride balls:
Grade | Gauge | Ball subgauge | Ball diameter variation | Ball lot diameter variation | Deviation from spherical form | Surface roughness |
G5 | ±5 | ±0.4 | 0.13 | 0.25 | 0.13 | 0.014 |
G10 | ±10 | ±0.4 | 0.25 | 0.5 | 0.25 | 0.020 |
G16 | ±10 | ±0.8 | 0.4 | 0.8 | 0.4 | 0.025 |
G20 | ±10 | ±0.8 | 0.5 | 1 | 0.5 | 0.032 |
G24 | ±12 | ±0.8 | 0.6 | 1.2 | 0.6 | 0.040 |
G28 | ±12 | ±0.8 | 0.7 | 1.4 | 0.7 | 0.050 |
G40 | ±16 | ±1.6 | 1 | 2 | 1 | 0.080 |
G60 | ±16 | ±2.4 | 1.5 | 3 | 1.2 | 0.1 |
G100 | ±40 | ±4 | 2.5 | 5 | 2.5 | 0.125 |
G200 | ±60 | ±6 | 5 | 10 | 5 | 0.150 |
4. 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 |
5. 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.
6. R&D TEAM
1.We have professional R&D Dept. and advanced facilities;
2.We have the R&D team of over 50 people and over 100% of them have tertiary education background;
3.Products are developed by the most creative professionals, and with world level advanced technical facilities that are qualified to achieve professional test.
7. 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.
8. Company Introduction
The company has advanced production including a HIP furnace and improved detection equipment and strictly follow the ISO9001 quality system.
Our factory was 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.
9. Customer & Fair
10. Customer & Fair
Please contact us for more detail and correct products!
Whatsapp: 86+13153371540
Email: tina(a)
Contact Us
- Beijing Sinoma Synthetic Crystals Co., Ltd.
- Contact nameHaibin Li
- Phone86-10-65492826-8288
- AddressNo. 1, Hongsongyuan
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