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NTN Bearing: Viewing and Troubleshooting in Operation

Source: Bearing network time: 2014-01-14
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First, the bearing's tumbling sound is selected by the sounder to check the size and sound quality of the bearing's tumbling sound; even if the bearing has slight peeling and other damage, it will announce abnormal sounds and irregular sounds; .
Second, the bearing oscillation bearing oscillation is very sensitive to bearing damage; for example, shedding, indentation, rust, crack, wear, etc. will be reflected in the bearing oscillation measurement; therefore; after the selection of special bearing oscillation measuring device (frequency analyzer, etc. The large amount of oscillation can be measured. ü De Shi Zhi 豢 豢 鲆 鲆 鲆 5 5 5 5 咛迩榭 咛迩榭 咛迩榭 咛迩榭 咛迩榭 咛迩榭 咛迩榭 咛迩榭 咛迩榭 咛迩榭 咛迩榭 咛迩榭 咛迩榭 咛迩榭 咛迩榭 咛迩榭 咛迩榭 咛迩榭 咛迩榭 咛迩榭 咛迩榭 咛迩榭 咛迩榭 咛迩榭 咛迩榭 咛迩榭 咛迩榭 咛迩榭 咛迩榭 咛迩榭 咛迩榭 咛迩榭. The measured value is analyzed and compared to determine the discriminant specification.
Third, the temperature of the bearing temperature of the bearing; usually the temperature outside the bearing can be estimated; if the oil hole can directly measure the bearing outer ring temperature; it is more suitable. Usually; the bearing temperature gradually rises with the beginning of the operation; Arrived in a stable condition after 1-2 hours.
Fourth, smooth. ㄒ唬 NTN bearing smooth effect has a significant impact on the fatigue life of the rolling bearing and conflict, wear, temperature rise, oscillation, etc.; there is no normal smooth; the bearing can not work. Analyze the cause of bearing damage; About 40% of bearing damage is related to poor smoothness.
The smooth method of the Vedas's leg 蠡 冉 bearing is roughly divided into two types: grease smoothness and oil smoothness. In order to give full play to the function of the bearing; the important thing is to use the reduction and application intention; use the smooth method. Table 4-2 Shows the advantages and disadvantages of smooth grease and smooth oil.
ㄈ┲蠡 Smooth grease is a smoothing agent composed of base oil; thickener and additives. When selecting; should choose the grease that is very suitable for the bearing application conditions; because the trademark is not the same; there will be very functional Great difference; so in the time of selection; it is necessary to pay attention.
Difficult to lick the mold according to the operating temperature; the primary goal should be the dropping point; oxidation stability and low temperature function; the dropping point can usually be used to evaluate the high temperature function; NTN bearing practice temperature should be lower than the dropping point 10- 20 ° C. The application temperature of the composition of smooth grease should be lower than the dropping point of 20-30 ° C. When selecting smooth grease according to bearing load; for heavy load should choose smooth grease with small penetration.
The leg squats under high speed and high temperature conditions; when the grease is smooth, it can be used with smooth oil. After smooth oil circulation; can take away a lot of heat.
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