мотор Surfboard мотора 5062 ротора 12V 24V IP68 водоустойчивые наружные безщеточные электрический

12V 24V IP68 Waterproof Outer Rotor Brushless Motor 5062 Electric Surfboard Motor With Propeller Main features: a): IP rate: IP68; b): shaft material is 316 stainless steel, can long term working in the ocean; c): Salt spray test lasts >140 hours, by using special bearing and lubrication; d): It can effectively protect copper wire and silicon steel sheet from seawater corrosion by adopting high thermal conductivity material in the vacuum sealing coil; e): The solder joints of