What is one of the first signs of worn motor bearings?

The first signs of worn motor bearings often manifest as reduced efficiency. When bearings wear out, they create increased friction, which can impair the motor's ability to operate smoothly. This friction not only affects the rotation of the motor but also increases the load on the motor, leading to greater energy consumption for the same output, therefore reducing its overall efficiency.

As the bearings degrade further, the motor may struggle to achieve its rated performance, draw more current, and ultimately lead to overheating or failure. Monitoring this can provide valuable insights for maintenance and timely intervention to avoid more significant issues down the line.

While increased speed, continuous overload, and intermittent failure may occur in relation to other motor issues, they are not primary indicators of bearing wear. Instead, reduced efficiency directly correlates with the increased drag and operational difficulties caused by worn bearings.