High temperature bearing:

The first and foremost is to stand the heat.There are many kinds of high temperature resistant bearings. According to different needs and different environments, different types of bearings can be installed.

category

High temperature bearing can be divided into ordinary high temperature bearing and special high temperature bearing from the structure and technology.

Using the environment

High temperature bearings are widely used in metallurgy, kiln, glass, blast furnace, painting equipment and other high temperature working machinery.

The type of high temperature bearing is different from that of ordinary bearing.Generally divided into two situations:

1. Bearing parts are made of bearing steel and processed by high temperature tempering

After the code according to the provisions of JB/T2974 (parts by high temperature tempering processing, working temperature up to 150C°, the code for /S0;The parts are processed by high temperature tempering, the working temperature can reach 200°C, the code is /S1;The parts are processed by high temperature tempering, the working temperature can reach 250°C, the code is /S2;The parts are processed by high temperature tempering, the working temperature can reach 300°C, the code name is /S3;The parts are processed by high temperature tempering, the working temperature can reach 350°C, the code name is /S4).

2. The parts of bearings are made of heat-resistant steel

The rear code is specified in JB/T2974 (material is Cr4Mo4V, rear code is /HN;The material was Cr14Mo4, and its postcode was /HN1.The material was Cr15Mo4V, and its postcode was/Hn2.Material W18Cr4V, postcode /HN3).

What material is the bearing of high temperature

The use of heat-resistant bearing steel, also known as high temperature bearing steel.This steel has sufficient high temperature hardness, high temperature wear resistance, high temperature contact fatigue strength, oxidation resistance and high temperature dimensional stability.

Now the application of high temperature bearing steel mainly has the following three categories:

(1) Cr4Mo4V (M50) steel is a heat-resistant bearing steel with excellent performance. It has high hardness and fatigue life at high temperature. It is mainly used in aero-engines and can work below 315℃ for a long time and up to 430℃ for a short time.

(2) Cr15Mo4 steel has high hardness and corrosion resistance in the range of 260 ~ 280℃, and can be used to produce corrosion resistant bearings below 480℃, such as jet engines and missiles;

(3) 12Cr2Ni3Mo5 (M315) is a widely used high temperature carburizing bearing steel. It is suitable for working below 430℃ and can be used to manufacture high temperature bearings with complex shapes and impact bearing.

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