Small size silicon nitride ceramic roller for bearing

1.Pictures of Small Size Silicon Nitride Ceramic Roller

 2.Descriptions of Silicon Nitride Ceramic Roller

Advantages:

1.Manufacture silicon nitride ceramic wear parts from 1995.

2.Excellent  and stable quality.

3.Plenty of stocks.

Material:silicon nitride

Precision:G1-G2,with different gauge

Idear products for bearing and chemical industry,and other rolling condition

Characteristics of Silicon Nitride Ceramic Parts:

1. High corrosion resistance. It can be used in strong acid and alkali situation.

2.High temperature stability. It can be used in high temperature situation, and the highest temperature can reach to 1400 °C. The strength and hardness in 1100 °C is almost the same as in room temperature.

3.Electrical insulation, non-magnetic. It can be used in magnetic field

4.Low density of 3.26 g/cm³, high bending strength and high hardness. It can be considered as wear resistant materials.

5.Low thermal expansion coefficient of 3.2×10^-6/K, which is 30% of Al₂O₃, and 40% of ZrO₂. It can bear a sharp temperature change.

Silicon Nitride Material Properties

 Performance Comparison of Structural Ceramics and Ordinary Steel

Specification of silicon nitride rollers

Length-Diameter aspect ratio (L/D)  Unit:mm

Dia 3-5     L/D≤2

Dia 5-10     L/D≤3

Dia 10-45   L/D≤4

Diameter and Roundness      Unit:μm

Length      Unit:μm

Surface Roughness    Unit:μm  

3.Production line of Silicon Nitride Ceramic Roller

4.Packaging of Products

5.Fair

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

6.Information of company

Founded in 1963, Beijing Sinoma Synthetic Crystals Co, LTD.Is a hi-tech state enterprise, belongs to the China National Materials Group Co., Ltd. An excellent 

technical team headed by the statelevel experts has built up,which provides a reliable guarantee for the continuous and rapid technological development. 

Advanced ceramic Division (technical center of precision ceramic bearing) is mainly engaged in researching,manufacturing and developing advanced ceramic materials such as Si3N4, ZrO2, Al2O3 and so on.

Main Products:

1). Si3N4 and ZrO2 ceramic balls and rollers.

2). Si3N4 ceramic bearing rings.

3). The whole series full ceramic bearings, hybrid bearings, sliding bearings and shaft sleeves made by Si3N4 and ZrO2 materials.

4). Industrial wear parts made by Si3N4 and ZrO2 materials. According to customer’s application condition and drawings, various precise and irregular ceramic parts can bedesigned and fabricated.

7.Welcome to contact us