
SKF Hybrid Ceramic Bearing 26X12X8 for Bicycle with Top Quality
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 a forward-looking vision, we have quickly invested in this non porous alumina ceramic rods and discs, ceramic fiber board thermal conductivity, ceramic fiber blanket density industry to study and explore. We provide a wide stage for our employees to give full play to their talents and a wide space to display their talents, so as to discover talents, cultivate them, respect them and develop them. We appreciate the team spirit of win-win cooperation, harmony and unity, and actively create a positive team atmosphere.
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 are committed to constantly exploring new technologies and promoting our lives through innovative SKF Hybrid Ceramic Bearing 26X12X8 for Bicycle with Top Quality. Our goal is to achieve the healthy and sustainable development of enterprises, so we continue to improve product quality and technology. With good resources, professional team, fine management and attentive service, we provide the most competitive products and services for our customers.
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