There have been recent emergence of NSK bearing failure, engineers are looking for reasons but has not found. And the right of the barrier debris and moisture, oil seal should not wear. However, the best to open the bearing box, check the bearing and regularly check the oil seal. Check near the high temperature bearing oil seal condition, to ensure that they are adequate to prevent hot liquid or corrosive liquid or gas infiltration along the axis of the bearing.
Usually, the NSK temperature of the bearing with the bearing running slowly rising, reach a steady state after 1-2 hours. The normal temperature of rolling bearings for heat capacity, the heat dissipation, speed and load and different. If the lubrication, install appropriate, bearing temperature quick rise, abnormal high temperature, then we must stop, take the necessary preventive measures.
The use of thermal sensor can always monitor the bearing temperature, and the temperature exceeds the set value automatically alarm or stop to prevent burning shaft accident.
High temperature often NSK bearings in an abnormal situation. High temperatures may also be harmful to the rolling mill bearing lubricant. Sometimes overheated bearings can be attributed to the bearing lubricant. If the bearings at the temperature higher than 125 DEG C long-term even would reduce bearing life. Cause of high temperature bearings causes include: insufficient or excessive lubrication lubrication, lubricant. Contains impurities, heavy load, bearing damage, lack of space, and oil have high friction and so on.
Therefore continuity NSK bearing temperature monitoring is necessary, whether the measurement of rolling mill bearing itself or other important parts. If it is in operation under the same conditions, any temperature changes may have trouble.
In fact, in bearing fault before we analyzed is not so capable, high temperatures may also be harmful to the bearing lubricant, sometimes overheated bearings NSK bearing lubricant can be attributed to, if bearing long-term operation at temperatures over 125 degrees Celsius, will reduce the high temperature bearing life, causes high temperature bearings include: lack of lubrication or excessive lubrication, lubricant containing magazine, excessive load, rolling mill bearing damage, lack of space, and oil have high temperature friction etc.. Well we will summarize these, if there is not complete your supplement for NSK bearing failure, we can only say so much.