Micro DC motors are widely used in household appliances, smart devices, medical instruments, and more. Extending the motor’s service life not only helps reduce maintenance costs but also improves overall product performance and reliability. As a micro motor manufacturer with 20 years of design and production experience, Lihua Motor summarizes three core factors affecting motor lifespan: material selection, regular maintenance, and operating environment. Here are our professional recommendations:
Optimized Brush Materials
We recommend using graphite carbon brushes filled with metal powder. These brushes offer excellent conductivity and wear resistance, effectively extending the lifespan of the commutator and reducing brush wear.
Upgraded Commutator Materials
Compared with traditional pure copper or copper-silver alloys, high-hardness alloy commutators have lower friction coefficients, significantly reducing wear during operation and enhancing overall motor durability.
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Precious Metal Brush | Long-life time carbon brush |
Regular Cleaning and Tightening
Periodically clean dust from the motor surface, check the tightness of wiring screws, and clean the contact surfaces between brushes and commutators to maintain stable electrical contact and prevent overheating.
Proper Bearing Lubrication
Add lubricating grease to the bearings at appropriate intervals to ensure smooth rotation and reduce friction and noise.
Enhanced Insulation Inspection
For motors that have been stopped for more than 3 days or after maintenance, it is recommended to perform insulation testing and drying treatment if necessary to ensure safe operation upon restart.
Temperature Control
The operating temperature of micro motors should be kept within the rated range to avoid internal material degradation or structural deformation caused by overheating.
Corrosion Protection
In humid or corrosive environments, protective coatings or sealing treatments should be applied to prevent rust and corrosion of components.
Reduce Operating Impact
Avoid frequent start-stop cycles to minimize mechanical fatigue; use soft starters or frequency converters for gentle motor startup, reducing the impact of startup current and slowing motor wear.
We provide high-quality micro motors certified by CE, ROHS, IATF 16949, ISO 9001, and offer customized solutions to help every product achieve higher performance and longer service life.
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