
High Precision ABEC7 606 Full Ceramic Ball Bearing
Si3N4 Ceramics is a new type of non-metallic ceramic material. It is characterized by high strength at room temperature and high temperature, and the strength of Si3N4 can be maintained at 1200 ℃.
Since our establishment, we have always adhered to the policy of 'high technology, high quality and high service', and with professional and unique innovative ideas, we have grown rapidly in the industry of ceramic heat beads, Electric Heating Elements, ceramic fiber tape properties in China. We take product quality as the life of the company, take corporate reputation as the foundation for development. We are confident to build the company into a well-known enterprise in the country and make outstanding contributions to the country's economic and social development. While striving to improve our performance, we are deeply deploying to promote the construction of the innovation chain and making every effort to seize the favorable position and the high ground. The company is speeding up its pace into the ranks of modernization, striving to become the industry leader.
Product Description
Si3N4 Ceramics is a new type of non-metallic ceramic material. One of the popular product of Si3N4 ceramics is Si3N4 tube. The tubes are mainly used in conjunction with thermocouples to protect them. It allows the thermocouple to operate properly in special environments and to resist high pressures and high flow rates.
Process Method
It uses silicon powder as raw material and is first made into the desired shape using the usual molding method. Initial nitriding is done in nitrogen at 1200°C, so that part of the silicon powder reacts with nitrogen to form silicon nitride. This way the whole body already has some strength. It is then nitrided a second time in a high-temperature furnace at 1350°C to 1450°C to react with the silicon nitride.
Specifications
Thermocouple protection tube: diameter Φ12-80mm, length 600-1800m

Data Sheet
Items | Data |
Sintering method | gas pressure sinter |
Density | >3.2g/cm3 |
Si3N4 content | >92% |
Flexural strength | >750Mpa |
Compressive strength | >1500Mpa |
Thermal conductivity (W/mk) | >22 |
Porosity | 0 |
Thermal expansion coeff. (RT-1000℃) | 3.2 |
Max temperature in air | 1400℃ |
Hardness (HRA) | >92 |
Q&A
1. How long is the service time of Si3N4 ceramics?
It will be different as per your application. The general period is 25-30days.
2. What is the payment terms?
Our payment terms are T/T, L/C or as per your request.
With our strict focus on the quality of our High Precision ABEC7 606 Full Ceramic Ball Bearing, as well as the service image and continuous innovation, our brand enjoys a good reputation. We firmly believe that with the strong support of friends from all walks of life and the unremitting efforts of all employees in the company, we will be able to contribute to the development of society! We focus on management and user information feedback, and constantly improve in terms of quality, service, performance, and price to meet the needs of users.
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