1, small mechanical can rotate by hand to confirm whether it rotate smoothly. Check for foreign projects, scars and creasing and cause operation not free, because of installation is bad, the installation seat processing bad and produce torque is not stable, because clearance is too small, installation error, seal and cause excessive torque friction, and so on. If there is no exception may start power operation.
2, large-scale machinery can't manual rotation, so start immediately cut off after no-load power, mechanical idling, examined for vibration and noise, rotating parts if there is contact, and so on, make sure no abnormalities, into power operation. Dynamic operation, and low no-load from beginning, slowly, to improve conditions for the rating of the operation. The test run in to check the matters, whether to have abnormal sound, SKF bearing the change of the temperature of leakage or discoloration, lubricant, and so on. If find unusual, shall be immediately suspend operation, and check the mechanic and, when necessary, to dismantle the bearing inspection.
SKF bearing temperature, general but according to the external temperature speculate that the bearing. But use of oil bearing outer ring directly measuring the hole of the temperature more accurate. Bearing temperature, from the operation began gradually raised, usually 1 ~ 2 hours temperature stability. If bearing installation is bad, the temperature will rise sharply, the abnormal high temperature. The reason such as lubricants too much, bearing clearance is too small, installation bad, sealing device too friction. High speed rotating occasions, SKF bearing structure, the choice of the ways of lubrication error, etc is the reason.
SKF bearing rotation sound check stethoscope, etc, have strong metal noise, different sound, irregular sound abnormal for details. The reasons are as bad lubrication, shaft bearing or bad, precision bearing damage, foreign bodies, invasion, etc.
From the use of reason and the internal factors of two side have the cause of the effect of SKF bearing, the use of main factors of see the use of our method is reasonable, internal factors but we choose the level when the bearing a problem!!!!!!
Use factor is mainly refers to installation and adjustment, and use the maintenance, the maintenance and repair, etc is in accordance with the technical requirements. Installation conditions is one of the important factors to use factors, SKF bearing for installation is appropriate and often lead to a complete set of bearing the parts of the state change between stress, bearing in a normal state not work and earlier failure. SKF according to the installation and use of bearing, the maintenance, the maintenance requirements, the bearing on operation to load, speed, working temperature, vibration and noise and lubrication condition monitoring and inspection, abnormal immediately find reason and adjustment, make it back to normal. In addition, the quality of grease and the surrounding media analysis inspection, the atmosphere is very important also.
Internal factors is mainly refers to structure design, manufacturing process and material quality decided to the quality of the three big SKF bearing factor. First, reasonable structure design and have advanced, just can have a long bearing life. Bearing manufacturing to want to pass commonly forging, heat treatment, turning, grinding and assembly process of multi-channel processing operations. The processing technology of rationality, advanced, stability will also affect the life of the bearing. Which influence the quality of the finished product bearing heat treatment and grinding process, often with the failure of the bearing a more direct relationship. In recent years on the bearing surface metamorphic layer of work study, grinding technology and bearing surface quality closely.
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