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Zys Full Ceramic Bearing and Ceramic Hybrid Bearings 6200CE with Si3n4 Bearing Balls for Bicycles

Zys Full Ceramic Bearing and Ceramic Hybrid Bearings 6200CE with Si3n4 Bearing Balls for Bicycles

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 ℃.

In order to implement the development concept of innovation, openness and sharing, we actively improve and perfect our ceramic coffee mug pipe, refractory ceramic fiber board, zircar ceramics alumina boats and cooperate with other outstanding enterprises. Practicability is a concept closely related to users' subjective feelings. The practicality of a product is related to users' expectations of the product. Our company will rely on strong resource advantages, high-quality service and information support, continue to maintain the pace of rapid 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


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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 always pursue excellent quality, pioneer and innovate, and have a group of professionals to continuously improve and perfect our Zys Full Ceramic Bearing and Ceramic Hybrid Bearings 6200CE with Si3n4 Bearing Balls for Bicycles. We have gradually become the loyal partner of many well-known enterprises at home and abroad. We have a professional production, sales team and a loyal customer base.

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