Vibration in
In normal use, vibration is very sensitive to the damage of SKF cylindrical roller bearings, http://www.alierbearings.com/index.php?c=product&a=search&word=SKF+NU  which are reflected in bearing vibration measurement by peeling, indentation, rust, crack, wear and so on.
Therefore, the vibration size can be measured by special bearing vibration measuring instrument (frequency analyzer, etc.), which can be inferred by frequency distribution.
The measured value is different from the use condition of the bearing or the location of the sensor installation. Therefore, it is necessary to analyze and compare the measured value of each machine in advance to determine the judging standard.
The temperature in
It is often indicated that the SKF cylindrical roller bearing has been in abnormal condition.
High temperature is also bad for bearing lubricants.
Sometimes the bearing overheating can be attributed to the lubricant of the bearing.
If the bearing temperature for a long time even the transfer of more than 125 ℃ lower bearing life.
The reasons for the high temperature bearing include: insufficient lubrication or excessive lubrication, impurities in roller bearings, excessive speed limit and long - term overloading of bearing.
The coefficient of friction
Friction coefficient of cylindrical roller bearing: bearing radial load of 0.002