Ducted fan with metal part no motor 70mm Ducted fan housing + 12 Blades + metal part There 3 diameter size of the motor axle for the metal part under this item: a. Φ3mm b. Φ3.17mm C.Φ4mm So please remark the size when you place order if no mark will be delivery the Φ3mm,kindly please be noted It is the most prominent feature at the top of motor rotor installed an efficient active radiator,when the motor work,the cold air from the bottom of the motor is inhaled, and then exhaust from the top of motor rotor ,therefor bing off the heat. compare with others , the temperature of our motor will decline 10 degree.to fly more fun for you . Our product made by the advanced silicon steel sheet material with high temperature resistance magnet that can guarantee the stiffness and toughness, great decrease the damage ratio.NAB bearing with high rigid make the motor low noise and work smoothly We support the bottom price for wholesales price if you place over 50pcs, we are factory with 12 years experince customized is acceptable.24 hours service: whatsapp:+86 18899742120, OEM is acceptable,can add your logo
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