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Bicycle Bearing Chrome Steel Hybrid Ceramic Ball Bearing 608 609

Bicycle Bearing Chrome Steel Hybrid Ceramic Ball Bearing 608 609

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 ℃.

Our ceramic bushings bearings, ceramic fiber braided rope, pop can pipe ceramic is stable in production and occupy the market with quality, which brings good economic and social benefits to the company. Our company is constantly facing the various needs of new industries and new products. Facing the future, we grasp the development trend of the industry and establish a new stage of mission to accelerate the development of a new journey of building a world-class enterprise. We have created an image concept of unique style, high quality and robustness in the minds of our customers. We establish a long-term mechanism for employee growth, highlight and guarantee the right of employees to acquire knowledge and skills and improve their quality through learning, so that the company can become a talent cultivation base.

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.


With advanced technology, stable products and considerate service, we have established a brand new banner in the Bicycle Bearing Chrome Steel Hybrid Ceramic Ball Bearing 608 609 industry. In the future, we will, as always, uphold the corporate tenet of 'Excellent Quality, Credit First, and Good Service'. Customers are God, we will work hard to improve our products and services, warmly welcome friends from home and abroad to visit and negotiate business. We create the quality you like with reasonable price, and really do what customers are anxious about and think about.

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