- Deep groove ball bearings
- Cylindrical roller bearings
- Aligning ball bearings
- Stainless steel bearings
- LNSERTED bearings
- Ball introduced
- Plain Bearings
- Needle Roller Bearings
- Angular contact ball bearings
- Thrust Roller Bearings
- Spherical roller bearings
- Thrust Ball Bearings
- Rolling mill bearings
- Tapered Roller Bearings
- Plastic bearings
- Linear motion bearings
| High temperature bearings | |||
| 点击数：10731 日期：2014/4/4 | |||
| High temperature bearings : First and foremost is to withstand high temperatures . There are many high temperature bearings , according to different needs , different environment , different types of bearings can be installed . Category High temperature bearings from the structure process can be divided into: general structure of high-temperature bearings and special structure of high-temperature bearings. Environment High-temperature bearings are widely used in metallurgy , kilns , glass, blast furnace , painting equipment and other high-temperature operating machinery . High temperature bearings and plain bearings models are different . Generally divided into two cases : 1 bearing parts bearing steel tempered by the high temperature , followed by JB/T2974 code provisions set (part by high-temperature tempering temperature up to 150C °, which code for the / S0; Parts by tempering , the working temperature up to 200 ° C, which code for the / S1; parts tempered at high temperature , the working temperature up to 250 ° C, which code for the / S2; parts by tempering treatment, work temperatures up to 300 ° C, which code for the / S3; parts tempered at high temperature , the working temperature up to 350 ° C, which code for the / S4). 2 bearing parts made of heat resistant steel, then set code by JB/T2974 requirements ( materials Cr4Mo4V, then set code for the / HN; material Cr14Mo4, then set code for the / HN1; material Cr15Mo4V, thereafter code for the / HN2; material W18Cr4V, then set code for the / HN3). What is high-temperature bearing material Use heat-resistant bearing steel , also known as high-temperature bearing steel. This steel has a sufficiently high temperature hardness , high-temperature wear resistance, high temperature contact fatigue strength, oxidation resistance and high temperature dimensional stability. Application of high-temperature bearing steels are mainly in the following three categories: (1) Cr4Mo4V (M50) steel is resistant bearing steel with excellent performance at high temperatures with high hardness and fatigue life , is mainly used for aero-engine , long-term work in the following 315 ℃, short time available to 430 ℃; (2) Cr15Mo4 steel has high hardness and corrosion resistance in the range of 260 ~ 280 ℃, 480 ℃ can be made to work the following corrosion bearings , such as for jet engines and missiles ; (3) 12Cr2Ni3Mo5 (M315) is a widely used high-temperature carburizing bearing steel, suitable for work in the following 430 ℃, can be used to manufacture complex shape and withstand the impact of high temperature bearings. |
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