SunnySky XS High Power X5212S Brushless MotorsDescription Powerful Multirotor Motors The XS motor features a new patented design with an industrial vision that's both powerful and visually impressive. The semi enclosed structure effectively prevents sand and debris from entering the motor while improving ventilation and heat dissipation. Advanced Large Diameter EZO Bearings The XS motor is equipped with advanced Japanese EZO bearings that have large diameters, providing stable, quiet operation