In the context of the fan www.dongfeng-motor.com blade or blades,electric tools series motor rotor fan blade have to use fan leaf (iron,plastic) and single-phase,three-phase asynchronous motor with fan leaf (now mostly plastic).Single and three-phase asynchronous motor,the make and model of the fan blade by the motor model,the number printed on the surface of the fan blade.As fan blade,Y Y-90-2-90-4,6,8 fan leaves,usually 2 is a series,4,6,8 is a series (gm).As emergency substitute,because the number of at the same time,not 2 can be very use tip of the leaf of fan use scissors to stator substitute,otherwise can't cover the upper hand.Remove the fan blade method series motor,generally with a long flat iron pry the class object (e.g.,flat file).After years of use,fan leaf aging is disassembled extremely fragile,be careful operation.Series motor high efficiency electric motor rotor fan www.facebook.com/guohong.trading blade available special Lamar spin out,also can use internal combustion engine valve down.