Relationship between motor temperature rise and bearing temperature

In daily life and work,  the motor is an indispensable role. From home appliances to factory machines, electric motors are everywhere. Then, a particularly important parameter in the use of motor - temperature rise limit. If more than that, the electric machine will start to appear abnormal, and even spark and burn.

In addition to the temperature rise limit of the motor, the motor bearing temperature is also a very critical parameter. Motor bearing is the key part of motor operation, it is subject to more friction, easy to heat up. If the temperature is too high, the motor bearing may fail, and even cause the entire motor to be paralyzed. Generally speaking, the motor bearing temperature should be controlled within a reasonable range as far as possible, and the motor bearing temperature of general industrial motors should be controlled within 70-80 degrees Celsius.

You might think that a small temperature change is no big deal, but it's the opposite. Exceeding the temperature rise limit may not only cause motor damage, but even cause fire in serious cases. For motor bearing temperature, too high friction temperature may also lead to lubricant failure, resulting in motor bearing wear and stuck.

Whether it is a household or industrial motor, it is necessary to understand and pay attention to the temperature rise limits and motor bearing temperature. This is not only to ensure the normal operation of the motor, but also for our safety and property protection. I hope this article can make everyone have a clearer understanding of the motor temperature rise limit and avoid the dilemma of "motor shutdown" in daily life.