Coreless motors are a type of electric motors that have a low temperature rise and a long lifespan. However, they can still be affected by external factors, such as ambient temperature, humidity, dust, and corrosion. These factors can increase the temperature rise and decrease the lifespan of the motor. To increase the temperature stability and lifespan of coreless motors, you need to take some measures, such as choosing a suitable environment for the motor operation, using a good heat dissipation system for the motor cooling, cleaning and lubricating the motor regularly。