Review on Miniature Skateboard 694ZZ 694Z 619 by June Reeves

Bearings were simply never designed for use in high speed drone motors and would quickly fail. However, if the bearings had been used as intended by the manufacturer I am sure they would have been satisfactory. I believe drone motors may require tighter tolerances as well as stronger housings. It was fun trying though. Cheers and good luck, comrades