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The reason why the temperature of NSK bearing is too high
Source: China Bearing Network Time: 2013-02-27
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Normally; the temperature of the NSK bearing gradually rises with the start of the bearing operation; the steady temperature is reached after 1-2 hours. The normal temperature of the NSK bearing is different due to the heat capacity of the machine; the heat dissipation; the speed and load are different. If it is smooth, the device is suitable; NSK bearing temperature will rise sharply; abnormal high temperature will occur; it is necessary to stop the operation; take necessary precautions.
The thermal sensor can be used to monitor the operating temperature of the NSK bearing at any time; and when the temperature exceeds the specified value, the alarm or active stop will be avoided.
The high temperature often indicates that the NSK bearing is in an abnormal condition. The high temperature is also harmful to the smoothing agent of the NSK bearing. Sometimes the overheating of the NSK bearing can be attributed to the smoothing agent of the bearing. If the bearing rotates for more than 125 °C for a long time, the NSK bearing will drop. The number of life. The cause of high temperature NSK bearing includes: smooth lack or over-smooth smoothness; smoothing agent. Contains impurities; excessive load; NSK bearing loss ring; lack of void; and high friction of oil seal attack.
Therefore, it is necessary to continuously monitor the temperature of the NSK bearing; whether it is measuring the NSK bearing itself or other important parts. If it is in the same working conditions; any temperature change can indicate that the problem has occurred.
The timing measurement of NSK bearing temperature can be measured by means of a thermometer; for example, a digital thermometer; the NSK bearing temperature can be accurately measured and displayed in °C or Fahrenheit temperature.
The importance of NSK bearings; meaning that when it is damaged; will form a stop of the equipment; therefore, such NSK bearings should be the best installed temperature detector.
Under normal circumstances; NSK bearings will have a natural temperature rise just after smoothing or smoothing and continue for one to two days.
Normally, K-bearings with operating temperatures above 150° are called high-temperature NSK bearings; because chrome-bearing steels are used at temperatures exceeding 150°; their hardness will drop sharply; the scale will be unstable; NSK bearings will not work properly. NSK bearings operating at temperatures between 150° and 350°; if the ferrules and tumblings are still made of normally high carbon chrome bearing steel; it is necessary to perform special tempering treatments on NSK bearing parts; usually above the operating temperature Tempering at 50°. NSK bearing steel treated by tempering according to the above requirements; can be used normally under working temperature. However, the hardness decreases after tempering; the life of NSK bearing decreases. When NSK bearing operating temperature Above 350 °; it is necessary to use high temperature resistant NSK bearing steel.
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