Rolling bearing fault phenomenon and the reason analysis

1, burning phenomenon: bearing analysis: sintering cannot turn inner ring expansion, smaller clearance or cage, roller broken note: inside and outside the circle with black spot mark, is the burning of the early 2, overheating: bearing temperature exceeds the upper or 1 more than normal temperature. 5 - 2 times analysis: the bearing gap is too small, oil is not clean too little or too much, note: metallographic overheating parts have change, overheating and the normal substrate layer 3, swing oil phenomenon: bearing overheating, oil from the oil seal escape analysis: gear oil into the bearing or bearing heating, excessive grease filling 4, a different sound phenomenon: noise vibration acceleration noise or sound in excess of the prescribed standards or have abnormal sound analysis: inside and outside the circle or roller stripping, crack, or bearing clearance is too large, stripping phenomena: raceway and the rolling surface metal scale strong peeling off from the substrate, the area is larger and deeper, more a sharp edge analysis: material fatigue, improper heat treatment, caused by partial load, impact and other remarks: according to the phenomenon of failure distribution: distribution of partial side, department of axial force, crack phenomenon: the results of roller and inner and outer ring crack analysis: material fatigue, improper heat treatment, caused by partial load, impact and other remarks: symmetrical distribution along the circle weeks, is bearing hole is not round; Tilt, crooked and system installation deflection, shaft torque loading 7, pitting phenomenon: a metal working face in dot fell from the matrix, a visual can be also called pitting area and the depth of analysis, material fatigue, improper heat treatment, caused by partial load, impact and other remarks: symmetrical distribution along the circle weeks, is bearing hole is not round; Tilt, crooked and system installation deflection, shaft torque loading 8, pinhole phenomenon: pinhole fall off, have a certain depth analysis: material fatigue, improper heat treatment, caused by partial load, impact and other remarks: gap is too small, overload, short of oil which can lead to early fatigue, otherwise when installation of mechanical damage, rolling skin phenomenon: on the surface of the metal work, a very thin layer of rolling off analysis: material fatigue, improper heat treatment, 10, caused by partial load and impact compaction mark on an article: the solution of the common bearing damage next article: high-speed motor bearing abnormal sound and common solutions