1. Bearing temperature standard Pump bearing temperature standard. During pump operation, the maximum temperature of the bearing shall not exceed ℃
. The temperature rise of the bearing shall not exceed the ambient temperature, and the maximum temperature shall not exceed ℃.
. When the pump is operating under specified working conditions, the outer surface temperature of the built-in bearing should not be higher than the temperature of the conveying medium, and the maximum temperature should not be higher than ℃. The temperature rise on the outer surface of externally mounted bearings should not be higher than the ambient temperature ℃. The maximum temperature is not higher than ℃
and the operating temperature of the bearing. The temperature rise of the bearing shall not exceed the ambient temperature ℃, and the maximum temperature shall not exceed ℃
, The temperature rise of the bearing shall not exceed the ambient temperature ℃, and the maximum temperature shall not exceed ℃
, The temperature rise of the bearing shall not exceed If the ambient temperature exceeds ℃, the maximum temperature shall not exceed ℃
2. Motor bearing temperature regulations, causes and solutions for abnormalities
The regulations stipulate that the maximum temperature of rolling bearings shall not exceed ℃, and the maximum temperature of sliding bearings shall not exceed ℃. And the temperature rise does not exceed ℃ (the temperature rise is the bearing temperature minus the ambient temperature during the test)
The reason is that the shaft is bent and the center line is inaccurate. Process re-centering.
The reason is that the foundation screws are loose. Process and tighten the foundation screws.
The reason is that the lubricating oil is not clean. Deal with changing the lubricant.
The reason is that the lubricating oil has been used for too long and has not been replaced. Clean the bearings and replace the lubricating oil.
Cause The balls or rollers in the bearing are damaged.
Treatment
Replace with new bearings. According to the national standards and insulation level assessment, the temperature rise of the motor is controlled within (resistance method) and (component method). Considering the ambient temperature of ℃, the maximum operating temperature of the motor cannot exceed /℃. Maximum allowable bearing temperature. Use an infrared detector gun to measure the temperature of the outdoor surface of the bearing. According to experience, the temperature at the highest point of the motor cannot exceed ℃. For the motor itself, no monitoring is required. After the motor is manufactured, under normal circumstances, its temperature rise is basically fixed and will not change suddenly or increase continuously as the motor operates. Bearings are wearing parts and need to be inspected.
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