Common Problems and Solutions of 25mm Diameter Mini DC Motor (JGA25-370)
In today's era of rapid technological development, 25mm diameter mini DC motors (such as model JGA25-370) are widely used in smart homes, smart wearables, micro robots, medical devices, and other fields due to their compact size and powerful performance. However, as its application scope continues to expand, users may also encounter some common problems during use. This article will provide a detailed analysis of these issues and provide effective solutions to help users better use and maintain the JGA25-370 mini DC motor, ensuring the stable operation of the equipment.
2、 Common problems and solutions
（1） Problem 1: Excessive noise during motor operation
cause analysis
Mechanical failure: Internal bearing wear or insufficient lubrication of the motor may cause abnormal noise during operation.
Installation issue: The motor is not securely installed, causing increased vibration and resulting in noise.
Load problem: Excessive motor load or uneven load distribution may cause the motor to run unstably and produce noise.
Voltage issue: Unstable or excessively high power supply voltage may cause fluctuations in motor speed and generate noise.
solution
Check bearings: Regularly inspect the internal bearings of the motor. If there is wear or insufficient lubrication, replace the bearings or add lubricating oil in a timely manner.
Reinforcement installation: Ensure that the motor is securely installed, and use shock-absorbing pads or fixed brackets if necessary to reduce vibration.
Adjust load: Check if the motor load is within the rated range, and if necessary, redistribute the load or replace it with a suitable motor model.
Stable voltage: Use a regulated power supply or voltage regulator to ensure stable supply voltage and avoid the impact of voltage fluctuations on motor operation.
（2） Problem 2: Unstable motor speed
cause analysis
Power supply issue: Unstable power supply voltage or poor power quality may cause fluctuations in motor speed.
Control circuit failure: Motor drive circuit or speed regulation module failure may result in inaccurate speed control.
Load variation: Rapid or uneven load variation of the motor may lead to unstable speed.
Motor malfunction: Damage to the internal winding of the motor or demagnetization of the magnet may cause abnormal speed.
solution
Check power supply: Use high-quality regulated power supply to ensure stable power supply voltage. If conditions permit, UPS power supply or voltage regulator can be used.
Check the control circuit: Check if the motor drive circuit and speed regulation module are working properly, and replace damaged components or modules if necessary.
Optimize load: Ensure that the motor load is within the rated range and avoid sudden changes in load as much as possible. If the load changes significantly, a frequency converter or PID controller can be considered for speed regulation.
Check the motor: Check if the motor winding is damaged and if the magnet has demagnetized. If there is any damage, replace the motor or repair it in a timely manner.
（3） Problem 3: Difficulty or inability to start the motor
cause analysis
Power supply issue: Low power supply voltage or insufficient power supply may cause the motor to fail to start.
Load problem: Overloading or jamming of the motor may cause difficulty in starting.
Motor malfunction: Short circuit in the internal winding or stuck bearings of the motor may cause it to fail to start.
Control circuit failure: Motor drive circuit failure or damaged starting circuit may cause the motor to fail to start.
solution
Check the power supply: Ensure that the supply voltage and current meet the requirements of the motor, and replace with a higher power supply if necessary.
Check the load: Check if the motor load is too large or stuck, and if necessary, reduce the load or clean the stuck area.
Check the motor: Check if the motor winding is short circuited and if the bearings are stuck. If there is a malfunction, repair or replace the motor in a timely manner.
Check the control circuit: Check whether the motor drive circuit and starting circuit are normal, and replace damaged components or modules if necessary.
（4） Problem 4: Severe heating during motor operation
cause analysis
Load problem: Excessive motor load or prolonged overload operation may cause heating.
Power supply issue: Excessive supply voltage or current may cause the motor to heat up.
Heat dissipation issue: Poor motor heat dissipation or damaged heat sinks may cause heating.
Motor malfunction: Short circuit or insulation damage in the internal winding of the motor may cause heating.
solution
Adjust load: Ensure that the motor load is within the rated range and avoid long-term overload operation.
Check power supply: Use a regulated power supply to ensure that the supply voltage and current meet the requirements of the motor.
Improve heat dissipation: Clean the motor heat sink to ensure smooth heat dissipation channels. If conditions permit, heat dissipation fans can be added or heat dissipation paste can be used.
Check the motor: Check if the motor winding is short circuited and if the insulation is damaged. If there is a malfunction, repair or replace the motor in a timely manner.
3、 Preventive measures and maintenance recommendations
Regular inspection: Regularly inspect the mechanical components and electrical connections of the motor to ensure its normal operation.
Reasonable load: Ensure that the motor load is within the rated range and avoid long-term overload operation.
Stable power supply: Use high-quality regulated power supply to ensure stable supply voltage and current.
Good heat dissipation: Keep the motor's heat dissipation channel unobstructed and add heat dissipation equipment if necessary.
Professional maintenance: If encountering complex faults, it is recommended to contact professional maintenance personnel for inspection and repair to avoid self disassembly and damage.
Mini DC motors with a diameter of 25mm (such as model JGA25-370) have been widely used in many fields due to their compact size and powerful performance. However, users may encounter some common problems during use, such as excessive noise, unstable speed, difficulty starting, and severe heating. Through the analysis and solutions presented in this article, users can better address these issues and ensure the stable operation of the motor. At the same time, regular maintenance and reasonable use are also key to extending the lifespan of motors and improving equipment performance. I hope this article can provide valuable reference and assistance for users who use JGA25-370 mini DC motors.