8501 5220 55

8501522055

Brushless synchronous alternating current electric motors with permanent magnets, with: -an output power of 1000 W or more, but not more than 1400 W, -a rotor containing 8 poles, generated by permanent magnets composed mainly of praseodymium-neodymium-iron-boron (GB/T 13560-2017 standard), enclosed in a stainless steel cover, -a motor magnet shaft end outer diameter of 10,001 mm or more, but not more than 10,007 mm, -motor terminals located across the 37,00 mm radius and separated by an angle of 30,00 °, -a motor housing made of ADC12 or EN AC46000 aluminium alloy die casting with composition of aluminium-silicon-copper (per JIS H5302-2000 or EN 1706 standard), -a back electromotive force constant (Ke) of 0,0265 V-sec/rad or more, but not more than 0,0293 V- sec/rad, -a back electromotive force (EMF) harmonic order - 5th of no more than 0,4 % (of fundamental) and 7th of no more than 0,2 % (of fundamental), -a synchronous inductance of 33,49 µH or more, but not more than 37,01 µH, -a cogging torque of not more than 15 mNm, -a friction torque in ambient temperature of not more than 20 mNm, -a maximum motor operation temperature of not more than 200 °C, -with or without a spline on the motor shaft