Ceramic bearings for brushless motors

Описание к видео Ceramic bearings for brushless motors

Ceramic bearings for brushless motors.
Is there any point changing the standard motor bearings to high spec. ceramic ball types?
In theory the ceramic should be more precise fit, and are capable of higher revs.
However, unless your standard bearings are damaged with dirt and corrosion, is there any gain in performance?
Here, I rebuild a motor and test for RPM and noise.

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