High temperature bearings: first and foremost is to withstand high temperatures. High temperature bearing has many kinds, according to different needs, different environment, can be installed in different types of bearings. The general structure of high temperature bearings: the main means is used in accordance with the bearing structure, adopts the high temperature resistant materials such as high temperature bearing steel, bearing design, mainly in high temperature, high temperature resistant self-aligning ball bearing deep groove ball bearing etc.. During normal operation, the bearing can not appear abnormal, jamming and noise at the same time, influence of imported high temperature bearings need to withstand vibration and impact factors, performance of bearing materials used must have wear resistance, corrosion resistance, magnetic.