The lifespan of jewelry miniature motors typically ranges from 500 to 1500 hours, depending on the motor type, usage, and maintenance.
Brushed Miniature Motors: These have a relatively short lifespan, generally around 500 hours. When the carbon brushes wear down to more than 2/3 of their length and the copper wire is exposed in the center, they must be replaced promptly; otherwise, rotor wear will accelerate, affecting the overall lifespan.
Brushless Miniature Motors: Due to the absence of carbon brush wear, their lifespan is much longer, reaching over 1000 hours. Some high-quality models can even last longer with proper maintenance.
Bearing Lifespan: The two bearings at the motor head are wear parts, bearing the main workload, and have a lifespan of approximately 1000-1500 hours. The front bearing is the most prone to failure, with a lifespan approximately 1/3 that of the rear bearing.
Key factors affecting lifespan include:
Frequent start-stop or reverse operation; Overload operation or unstable voltage; Dust accumulation leading to poor heat dissipation; Environmental conditions such as humidity and temperature exceeding standard ranges.
