
High Speed ABEC9 Si3n4 623 Ceramic 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 ℃.
We reduce production costs of our ceramic fiber round braided rope, Aluminum Titanate Riser Tube, electric water heater element by improving product technology, so as to maintain the company's profit growth. We believe that quality is related to two lives, one is the life of the consumer, the other is the life of the enterprise. We actively build a more reasonable production layout planning, stricter and higher process quality control and requirements, laying the foundation for another leapfrog development. Our company continuously strengthens our independent innovation ability, speeds up personnel training, increases investment, and promotes our development.
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.
Since its establishment, the company has consistently adhered to the theory of 'science and technology is the primary productive force' as its guide, and has launched various high-quality High Speed ABEC9 Si3n4 623 Ceramic Bearing with perfect technology and diligent pursuit of quality. We are committed to providing not only high quality products but also offer customers with timely and thoughtful professional services. Welcome all of you contact with us for the future cooperate. We have many professional engineers and lead a technical team to retail in batches.
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