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External rotor motors

External rotor motors are shorter than internal rotor motors and offer a cost-effective solution particularly for large series. In these motors the permanent magnets are mounted on the rotor housing which rotates around the internal stator with the windings. Thanks to the higher inertia of the rotor, external rotor motors have a lower torque ripple than internal rotor motors. 

Categories for External rotor motors

DF45 – Brushless DC motor

Flat external rotor motor with 16 poles, a rated power of 30 – 65 W and a rated speed of up to 5,260 rpm. 24 V DC rated voltage. Diameter: 45 mm.
  • Size
  • Rated Power 30 W - 65 W
  • Rated Voltage 24 V
  • Rated Speed 4840 rpm - 5260 rpm

DFA68 – Brushless DC motor

Outrunner BLDC motor with a diameter of 68 mm and a rated power of 110 W. The DFA68 comes with a 24 V winding and is equipped with Hall sensors. The rotor housing is rated IP54.
  • Size
  • Rated Power 110 W
  • Rated Voltage 24 V
  • Rated Speed 3700 rpm

DFA90 – Brushless DC Motor

Flat external rotor motor with a diameter of 90 mm and a rated power of up to 170 W. The DFA90 is available with two different windings for 24 and 48 V and is equipped with digital Hall sensors for...
  • Size
  • Rated Power 130 W - 170 W
  • Rated Voltage 24 V - 48 V
  • Rated Speed 1670 rpm - 2720 rpm

Brushless DC motors – External rotor motors Product List

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