Why did SKF bearing crack

Are you using SKF bearing when suddenly broken? Do you find mechanical equipment in the process of running all of a sudden have abnormal sound? Or are you at the time of overhaul bearing will find there is crack on SKF bearing, why SKF bearing will be split? The bearing site now to decompose the SKF bearing crack reason: ( 1) Martensite arrangement must be small, because the gross martensite brittle is larger, and even there is a lot of microcrack, the arrangement is easy to attack grinding crack; ( 2) Strict control carbide grades, because the carbide is brittle phase, the cracking resistance, low thermal conductivity, poor ability of manipulation of the carbide level can greatly reduce refined crack probability; ( 3) Less residual austenite, the residual austenite thermal conductivity as long as half of martensite, remaining austenite mass, the more the greater the thermal stress in the process of grinding, grinding cracking tendency has been added. SKF bearing inner ring of the analysis of the surface of metallographic arrangements exist in large carbide and serious carbide network; Improper grinding technology in grinding process, Such as grinding too fierce, poor cooling, etc. ) The surface part, will cause the bearing inner ring heat, seizures secondary hardening or high temperature temper burn; The heating arrangement greatly reduces the surface cracking strength of materials, material surface under the effect of grinding stress and stress, the crack. 【 Warm prompt. 【 The bearing network] Some information from the Internet, and strive to secure timely, accurate, aims to deliver more information, does not represent our views to its approval or responsibility for their authenticity. If this net reprint information involves the issues such as copyright, please contact with this net. Tel: 0571 - 81630205. Tags: production and processing