Bearing temperature standard - pump bearing temperature standard


GB3215-82

4.4.1 The maximum temperature of the bearing does not exceed 80 during pump operation


JB/T5294-91

3.2.9.2 The temperature rise of the bearing shall not exceed the ambient temperature 40, and the maximum temperature shall not exceed 80.


JB/T6439-92

4.3.3 When the pump is running under the specified working conditions, the temperature of the outer surface of the built-in bearing should not be higher than the temperature of the conveying medium 20, and the maximum temperature is not higher than 80. The temperature rise of the outer surface of the external bearing should not be higher than the ambient temperature 40. The maximum temperature is not higher than 80


JB/T7255-94

5.15.3 The operating temperature of the bearing. The temperature rise of the bearing must not exceed the ambient temperature of 35. The maximum temperature must not exceed 75.


JB/T7743-95

7.16.4 The temperature rise of the bearing shall not exceed the ambient temperature 40, and the maximum temperature shall not exceed 80.


JB/T8644-1997

4. 14 Bearing temperature rise must not exceed ambient temperature 35, the maximum temperature must not exceed 80

Motor bearing temperature regulation, cause of abnormality and treatment. The regulations stipulate that the maximum temperature of the rolling bearing does not exceed 95 ◦C, and the maximum temperature of the sliding bearing does not exceed 80 ◦C. And the temperature rise does not exceed 55◦C (temperature rise is the bearing temperature minus the ambient temperature during the test)


Reasons and treatment of excessive bearing temperature rise:

(1) Cause: The shaft is bent and the center line is not allowed.

Solution: Re-find the center.

(2) Cause: The base screw is loose.

Solution: Tighten the foundation screws.

(3) Reason: The lubricating oil is not clean.

Solution: Replace the lubricant.

(4) Reason: The lubricating oil has been used for a long time and has not been replaced.

Solution: Wash the bearings and replace the lubricant.

(5) Cause: The ball or roller in the bearing is damaged.

Solution: Replace the new bearing.



Reprinted from the network