Name: silicon nitride roller, Si3N4 roller, Ceramic roller
Brand: SINOMA
Availability: InStock

Product Details

1. Silicon Nitride Ceramic Bearing Roller/Ball

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. Roller Size Diameter and Roundness Unit:μm

Length Unit:μm

Surface Roughness Unit:μm

4. 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.

5. 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.

6. Fair

We have been to a lot fairs and the latest fair is 2015 HANNOVER MESSE Germany.

7. 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.

8. Contact

Please contact us for more detail and correct products!

Whatsapp: 86+13153371540