
High Speed Hybrid Ceramic Bearing 607 Zro2 Deep Groove 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 ℃.
With the aid of professional and perfect test support, we ensure the stability and excellent quality of the transparent alumina ceramic tube, Sic Rods Heating Elements, protection tube for thermocouple so that make us occupy the leading position in the industry. We continuously investigate and visit customers, and through the evaluation of customer satisfaction rate, the overall evaluation is excellent, confirming that our product quality has certain competitive strength. Our company always adhere to quality first, we serve our customers attentively and strive to improve our professional level. Satisfactory service and high-quality products are our unremitting pursuit and driving force. Our goal is to achieve sustainable corporate development, scientific development and good career development of employees. We love the company, are loyal to it, and protect its image, honor and interests.
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.
Our company has developed a series of High Speed Hybrid Ceramic Bearing 607 Zro2 Deep Groove Ball Bearing with independent intellectual property rights with international advanced technology and has realized industrialization. Our company adheres to the enterprise spirit of 'people-oriented, truth-seeking and pragmatic', and the business philosophy of 'innovation, win-win' to continuously meet customer needs with excellent quality and comprehensive services. Our company is actively in accordance with the development strategy of science and technology, diversification, collectivization and service, becoming an indispensable member of the market in the industry.
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