The properties and requirements of bearing steel

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Rolling bearing comprises a rolling bearing parts of timber and cage, rivets and other auxiliary materials. The vast majority of rolling bearings and parts made of steel, the rolling bearing steel is usually carbon steel and high carbon chromium steel. With the development of modern science and technology and the use of the increasing amount of rolling bearing, bearing on the increasingly high demand, such as high precision, long life and high reliability etc.. For some special purpose bearings, also asked the bearing material has the advantages of high temperature resistance, corrosion resistance, non magnetism, ultra low temperature performance, anti radiation etc.. In addition, bearing materials include alloy materials, nonferrous metal and non-metal materials etc.. In addition, made of ceramic material bearing has been applied in locomotive, automobile, subway, aviation, aerospace, chemical industry etc..
The working performance of rolling the basic requirements for materials bearing depends largely on the bearing. Selection of manufacturing is appropriate rolling bearing materials, will have great influence on its performance and lifetime. In general, the main failure forms of rolling bearing fatigue spalling force is to be subjected to alternating, and due to the friction and wear loss of precision bearings. In addition, there are cracks, indentation, rust and other causes of bearing abnormal damage. Therefore, the rolling bearing should have high resistance to plastic deformation, friction and wear a small, rotating precision, good dimensional accuracy and stability, and the length of contact fatigue life. And many of the performance is decided by the materials and heat treatment process. The basic requirements of the rolling bearing is decided by the failure forms of bearing, a certain heat treatment so the requirements of material after rolling bearing manufacturing process and then must have the following properties

234407BM 234706BM 234406BM 517/2860V/YA 5610/2500 517/1720X1V 527/1181M 510/1180M 517/930 510/670 590/560 510/500 52780 59080 517/368M 51760U 517/238 6207-2ZN 6206-2ZN 6205-2ZN 6204-2ZN 6203-RZ 6203-2ZN 6202N 6202-2ZN 6201-2ZN 6200ZZ 6200-2ZN 62/32-ZN 62/32-Z 62/32N 62/32-2Z 62/32-2RZ 62/32-2RS 62/28-2RZ 62/22-2RZ 61996 61992 61988 61984

Introduction

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