Brushed DC Motors | Overview

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.

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.

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
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 connection resistance results from the nominal voltage/starting current.

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.

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.

Downloads Series GR/G

Combinations Series GR/G

Download pdf, 227 KB

Main catalogue

Download pdf, 38 MB


Contact us

Do you have any questions on this product? You would like individual advice, or to request an non-binding offer? Please feel free to contact us!

Configuration & 3D models

You can configure suitable motors, gearboxes and attachments in the configurator. There you can also download 3D models for your components or the complete drive.

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