Seeking expert help: motor bearing temperature
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Operating requirements for centrifugal pumps: the operating temperature of the motor should not exceed 90 degrees Celsius, and the temperature of the bearings should not exceed 85 degrees Celsius. What is the purpose of such temperature requirements? What causes overheating? How to handle it? How to prevent it? Is there a low temperature? Thank you to all the brothers and sisters
Your question sounds a bit confusing, but I’ll still provide some information. There are two standards for the temperature of motor bearings: the temperature of sliding bearings must not exceed (80°C) ； For rolling bearings, it must not exceed (100℃). If the motor overheats, 1) the density or viscosity of the medium is too high, which does not match the design specifications ； 2) Severe friction between the rotor and the housing ； 3) Misalignment of the coupling or worn bearings; if the bearing temperature is too high, 1) Poor quality of the rolling bearings or wear during operation ； 2) The clearance of the sliding bearing is too small ； 3) Poor cooling of the bearing housing ； 4) Insufficient, excessive, or contaminated amount of lubricating oil and grease