
Miniature Full Ceramic ABEC 9 3X10X4 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 ℃.
The pursue from the firm, would be the clients' gratification for ceramic coffee mug pipe, inswool ceramic fiber blanket, thin ceramic alumina sheet mesh. Over the years, our factory has continued to deepen the internal reform of the enterprise, with 'passionate and enterprising, innovation and transcendence' as the development spirit, adhere to the corporate philosophy of 'integrity-based, customer first' service tenet, we have won a good reputation in the industry. We adhere to a new management model, perfect technology and thoughtful service, and excellent quality for survival. With the implementation of the integration of production and operation, our company has achieved remarkable results in production and operation. The survival and development of our company depends on the support and recognition of our customers, and we must consistently attach importance to the partnership with our customers.
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.
We continue to digest and absorb new technologies and new experiences of domestic and foreign Miniature Full Ceramic ABEC 9 3X10X4 Bearing. Our aim is to create products and services for society, survival and development for the enterprise itself, and opportunities and space for individuals. We're able to also give you with free of charge samples to meet your requirements.
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