When the motor is running, the noise is abnormal and there is abnormal noise | Shihlin Electric

1. Causes of failure ① The bearing is worn or there are foreign objects such as sand particles in the oil; ② The rotor core is loose; ③ The bearing lacks oil; ④ The power supply voltage is too high or unbalanced. 2. Troubleshooting ① Replace the bearing or clean the bearing; ② Repair the rotor core; ③ Lubricate; ④ Check and adjust the power supply voltage. Find quick answers in the Shihlin Electric FAQ—selection, wiring and troubleshooting for circuit breakers, magnetic contactors, AC drives, servo, HMI and PLC control.

FAQ: When the motor is running, the noise is abnormal and there is abnormal noise

Shihlin Electric FAQ: Selection, Wiring & Troubleshooting

When the motor is running, the noise is abnormal and there is abnormal noise

1. Causes of failure ① The bearing is worn or there are foreign objects such as sand particles in the oil; ② The rotor core is loose; ③ The bearing lacks oil; ④ The power supply voltage is too high or unbalanced.

2. Troubleshooting ① Replace the bearing or clean the bearing; ② Repair the rotor core; ③ Lubricate; ④ Check and adjust the power supply voltage.

When the motor is running, the noise is abnormal and there is abnormal noise | Shihlin Electric

The Shihlin Electric Company Profile introduces a Taiwan-based manufacturer with 70+ years of engineering experience supporting low-voltage power distribution and motor control for industrial customers.

Our scope covers circuit breakers, switchgear and power distribution systems, magnetic switches and magnetic contactors—plus factory automation solutions including inverters, AC drives, servo motors and drives, HMI, controllers, PLC and system integration.

With long-term OEM/ODM collaboration and a growing global network, Shihlin Electric helps you standardize components, reduce downtime, and move from product selection to commissioning with practical technical support.