The Brief summary of the High temperature Bearing

Generally speaking, the bearing whose working climatic characteristic is above 150 degrees Celsius is called high climatic characteristic bearing. Agreeing to distinct needs and working conditions, there are a lot of these bearings. From the perspective of the structures, the bearing can be separated into the base structure type and the special structure type. The base structure type in general refers to the bearing, made by the elevated climatic characteristic material, which is manufactured in light of the base bearing's structure. The high climatic characteristic deep grove ball bearing is a good example. As for the special structure type, it not only adopts the high climatic characteristic material but also realizes the automatic clearance payment in the high climatic characteristic environment, such as coil spring bearing.

According to some connected researches, the working climatic characteristic of a bearing has a close association with its manufacturing material. When the chromium bearing steel is in doing in the health with above 150 degrees Celsius, its hardness will be reduced rapidly and meanwhile its size will not be stable. Thus it cannot work normally. Therefore, as for the bearing whose working climatic characteristic is between 150 degrees Celsius and 250 degrees Celsius, the bearing made of the material chromium bearing steel should be treated by the tempering. Or else, this bearing is not suitable to work under this temperature. However, this bearing treated by the tempering is not perfect, because the tempering medicine can cut the hardness.

Nuclear Reactor

In other word, the assistance of the bearing will be reduced. When the bearing works in the health with above 250 degrees Celsius, the high climatic characteristic bearing steel should be used.Besides for the properties of the base bearing steel, this bearing steel should be featured by the elevated climatic characteristic hardness, elevated climatic characteristic wearing resistance, elevated climatic characteristic dent resistance, antioxygenic property, stability of the size and so on.

There are any high climatic characteristic bearing steel. Under the elevated temperature, the high climatic characteristic bearing steel can form insoluble carbides and at the same time can isolate out these carbides. Through the two times' hardening effect, this kind of bearing steel still has the relative high hardness, resistance to wear, fatigue durability, reliability and so on. On the basis of these unique features of this bearing steel, the high climatic characteristic bearing inherits the above-mentioned characteristics. Therefore, it is quite suitable for the high climatic characteristic environment.

Owing to so many unique features, this bearing is widely used in a lot of fields. For example, some are applied in the gas turbine, nuclear reactor systems and jet engine. Others are used in the rocket, space ship and hypersonic vehicle.

The Brief summary of the High temperature Bearing