Brushed DC Motors

Dunkermotoren GR30 SERIES Brushed DC Motor

The Dunkermotoren GR30 Series Brushed DC Motor is a compact and efficient solution, providing reliable power outputs ranging from 9W to a peak of 15W. Designed for versatile applications, this series is ideal for industrial automation, medical devices, and precision machinery where consistent performance and adaptability are essential. Key featu...

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The Dunkermotoren GR30 Series Brushed DC Motor is a compact and efficient solution, providing reliable power outputs ranging from 9W to a peak of 15W. Designed for versatile applications, this series is ideal for industrial automation, medical devices, and precision machinery where consistent performance and adaptability are essential.

Key features include a durable mechanical commutation system with a multi-bar commutator for long operational life and bidirectional rotation for flexible use. With a nominal voltage range of 12V to 40V and optional configurations such as custom shaft lengths, dual ball bearings, and interference suppression, the GR30 Series is tailored to meet diverse operational requirements. High efficiency and modular compatibility with Dunkermotoren gearboxes, controllers, encoders, and brakes further enhance its suitability for precision motion applications.

The GR30 Series supports dependable performance in demanding environments, offering a lightweight design (starting at 0.08kg), robust construction, and optional advanced configurations. With a wide operating range and compatibility with modular components, it ensures easy integration into space-limited or custom setups.

Whether you need a motor for robotics, medical systems, or industrial tools, the Dunkermotoren GR30 Series delivers precision, durability, and flexibility.

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Dunkermotoren GR30 Series Brushed DC Motor
Features
  • Nominal Voltage: 12~40VDC
  • Stack Length: 10mm~45mm
  • Nominal Torque: 0.01 - 0.0370Nm
  • Nominal Speed: 2900~3600rpm
  • Nominal Output Power: 3.04~9.5W
  • Modular compatibility with Dunkermotoren gearboxes, controllers, encoders, and brakes
Selection Table
DATA UNITS GR 30x10 GR 30x20 GR 30x45 GR 30Sx20 GR 30Sx45
Nominal voltage VDC 12 24 40 12 24 40 12 24 40 12 24 40 12 24 40
Stack length mm x10 x10 x10 x20 x20 x20 x45 x45 x45 x20 x20 x20 x45 x45 x45
Nominal current A 0.6 0.31 0.21 0.9 0.45 0.28 1.4 0.71 0.4 0.90 0.45 0.28 1.40 0.71 0.40
Nominal torque Nm 0.01 0.01 0.01 0.0165 0.017 0.0175 0.03 0.03 0.03 0.020 0.020 0.020 0.0370 0.0370 0.0370
Nominal speed rpm 2900 3000 3500 3300 3400 3600 2980 3030 2810 3000 3100 3250 2500 2650 2600
Stall torque Nm 0.03 0.03 0.0327 0.064 0.067 0.069 0.129 0.13 0.123 0.069 0.082 0.076 0.153 0.17 0.165
Maximum torque Nm 0.03 0.03 0.0327 0.064 0.067 0.069 0.129 0.13 0.123 0.069 0.082 0.076 0.153 0.17 0.165
No load speed rpm 4650 5000 5400 4750 4800 5300 4130 4400 4100 3950 4000 4500 3250 3550 3350
Nominal output power W 3.04 3.14 3.67 5.7 6.1 6.6 9.4 9.5 8.8 6.4 6.49 6.4 9.7 10.27 10.1
Maximum output power W 3.65 4.06 4.62 7.95 8.4 9.5 13.93 14.9 13.2 7.14 8.59 9.23 13.02 15.8 14.9
Torque constant Nm A-1 0.0232 0.0435 0.0649 0.0237 0.046 0.0702 0.0288 0.05 0.0873 0.0280 0.0559 0.087 0.0336 0.0636 0.1102
Terminal Resistance Ω 8.58 31.1 72.7 4.21 15.68 38.5 2.61 8.9 27.4 4.61 15.68 40.0 2.55 8.73 26.4
Terminal inductance mH 5.15 21.8 49.5 3.64 14.2 33.5 2.61 8.0 24.7 3.68 14.1 30 2.61 7.42 24.7
Starting current A 1.4 0.77 0.55 2.85 1.53 1.04 4.6 2.7 1.46 2.60 1.53 0.95 4.7 2.75 1.52
No load current A 0.145 0.076 0.054 0.175 0.09 0.064 0.25 0.13 0.07 0.18 0.10 0.08 0.25 0.14 0.075
Demagnetisation current A - - - - - - ≥ 11.5 ≥ 6.0 ≥ 3.0 - - - - - -
Rotor inertia gcm2 11.0 11.5 11.0 18.5 19.5 18.5 42.2 41.9 42.2 18.5 19.5 18.5 42 41.9 42.2
Weight of motor kg 0.08 0.08 0.08 0.11 0.11 0.11 0.24 0.24 0.24 0.11 0.11 0.11 0.24 0.24 0.24
External controller Model BGE 6005 A BGE 6005 A BGE 6005 A BGE 6005 A BGE 6005 A
Encoder Model RE22, RE30 (TI) RE22, RE30 (TI) RE22, RE30 (TI) RE22, RE30 (TI) RE22, RE30 (TI)
Brakes Model E 38 R E 38 R E 38 R E 38 R E 38 R
Magnetic pulse encoder Model MG 2 MG 2 MG 2 MG 2 MG 2
Planetary gearbox Model PLG 30, PLG 32, PLG 42 K, PLG 42 S PLG 30, PLG 32, PLG 42 K, PLG 42 S PLG 30, PLG 32, PLG 42 K, PLG 42 S PLG 30, PLG 32, PLG 42 K, PLG 42 S PLG 30, PLG 32, PLG 42 K, PLG 42 S
Downloads
GR30S_Brushed_DC_Motor_Datasheet.pdf
GR30_Brushed_DC_Motor_Datasheet.pdf
Warranty & Returns

Warranty periods vary by product. Please refer to the Powerbox Warranty Policy for the applicable coverage period against manufacturing defects from date of purchase. For returns and RMA requests, please visit our RMA support page or contact our support team directly.