What is high temperature resistant bearing?

What is high temperature resistant bearing? 2019 - 09 - Top 14 high-temperature bearing the first and the most is tolerance for high temperature. There are many kinds of, high-temperature bearing according to different needs, different environment, can install different types of bearings. Category from structural process can be divided into: high temperature resistant bearing structure resistance to high temperature bearing, high temperature resistant bearing and special structure. Using a high temperature environment bearing is widely used in metallurgy, kiln, glass, paint spraying equipment or blast furnace burden and other high temperature operating machinery. Resistance to high temperature of the bearing is what material to use heat resistant bearing steel, also called high temperature bearing steel. This kind of steel has a high enough high temperature hardness, high temperature wear resistance, high temperature and contact fatigue strength, high temperature oxidation resistance and dimensional stability. Now the application of high temperature bearing steel mainly has the following three categories: ( 1) Cr4Mo4V（ M50) Steel is heat resistant bearing steel with excellent properties at high temperature with high hardness and fatigue life, it is mainly used for aircraft engine, can work under 315 ℃ for a long time, short time available to 430 ℃; （ 2) Cr15Mo4 steel in 260 ~ 280 ℃ has high hardness and corrosion resistance, can produce corrosion resistant bearing under 480 ℃, such as used for jet engines and missiles; （ 3) 12Cr2Ni3Mo5（ M315) Is a widely used high temperature carburizing bearing steel, suitable for working under 430 ℃, can be used to make complex shape and withstand the impact of high temperature bearing. High temperature resistant bearings and plain bearing types are distinguished. Generally divided into two kind of situations: 1. Bearing capacity of bearing steel made after treated by high temperature tempering regimes code according to the provisions of the JB/T2974: parts after the high temperature tempering treatment, working temperature is 150 c & deg; , code-named/S0; Parts after the high temperature tempering treatment, working temperature can reach 200 & deg; C, code-named/S1; Parts after the high temperature tempering treatment, working temperature can reach 250 & deg; C, code-named/S2; Parts after the high temperature tempering treatment, working temperature can reach 300 & deg; C, code-named/S3; Parts after the high temperature tempering treatment, working temperature can reach 350 & deg; C, code-named/S4. 2. Bearing parts made from heat resistant steel then buy code according to the provisions of the JB/T2974: materials for Cr4Mo4V, code-named/HN; Materials for Cr14Mo4, code-named/HN1; Materials for Cr15Mo4V, code-named/HN2; Materials for W18Cr4V, code-named/HN3.