Brushed DC Motors

Dunkermotoren's DC motors - brushed DC motors (GR/G series) with gearboxes, brakes and encoders to create the perfect motor solution. Our brushed motor with low cogging torque, rugged designed and low moments of inertia.
Brushed DC Motors
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Brushed DC Motors
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  • Ø: 30 mm – 80 mm
  • Performance: 3 – 240 W
  • Torque: 1 - 63 Ncm
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  • 70 Years of drive experienced
  • Competent support
  • Well-founded guidance
  • Large product portfolio 
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Individual solutions for shaft winding, plugs, software or special certificates and testing are our daily business

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30 million possible combinations of brakes, motors, gearboxes, encoders, controllers…

Applied Voltage              12 / 24 / 40 / 48 / 60               VDC
Nominal power 3 - 796     W
Nominal torque  0,01 - 0,67    Nm
Nominal speed  2500 - 4000     rpm

The Dunkermotoren GR/G range (commutated DC motors) are notable for:

  • Longer life than commutated motors from other manufacturers
  • Low detent torques
  • High efficiency
  • High dynamic acceleration
  • Good regulation characteristics
  • Maintenance-free
  • Robust design
  • Low moment of inertia
  • Extremely high short time overload capacity of the motor
  • Surface protection
  • Minimum interference radiation, optional interference suppression
  • Protection up to IP 65 (GR 42, GR 53, GR 63, GR 63S, GR 80)
  • High quality due to fully automated production lines

  • More Information

    Each of our brushed DC motors can be operated in both clockwise and counter clockwise rotation with regard to the direction of rotation. The mechanical commutation via a multi-part collector ensures a long service life for the motors.

    You will find a detailed comparison of our brushed DC motors in terms of size, length, output power, voltage, speed, torque and the components used, such as encoders, brakes or planetary gearboxes, on page 10 in our main catalogue.

  • Product Datasheets
  • FAQ's
  • How does the connection resistance behave with the brushed GR motor?
    The connection resistance results from the nominal voltage/starting current.
  • Can the motor be operated at a voltage other than the nominal DC voltage? How does the characteristic diagram change if the supply voltage is not equal to the rated voltage?
    Yes, the motor can also be operated with different voltages. For motors with integrated electronics, the permissible limits of the electronic components must be observed.

    Motors from Dunkermotoren are usually designed for a standard industrial rated speed in the range of 3000 to 4000 rpm. If an application requires it, the speed can be easily adapted to the desired operating point by selecting a different winding.

    Example: When using a GR motor with nominal 12 V at a supply voltage of 24 V, the no-load speed doubles and the entire motor characteristic curve shifts parallel accordingly. This results in a significantly increased continuous output power of the motor.
  • How does Dunkermotoren specify the motor power?
    The nominal power P(N) is the output power of the motor which can be generated permanently, calculated from nominal speed and nominal torque. The motors from Dunkermotoren are always measured according to EN60034 in thermally insulated condition. The measurement methods for the specification of motors are not standardized and sometimes differ significantly between the different suppliers. This makes it difficult to compare values even with comparable motor concepts and speeds.
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