Hollow Shaft Servomotors RDU50x14-HW210 W | 0.54 Nm | 3870 rpm | 48 V

Hollow-shaft 50x14 drive units featuring market-leading torque density in a compact footprint. Suitable for a broad range of industrial applications.

  • Hollow-shaft
  • Industry-leading torque density
  • Excellent overload capability
  • Compact design
  • Multiturn absolute encoder with high resolution
  • Integration of hollow shaft safety brake
Hollow-shaft RDU50x14-HW servo motors utilize TQ-RoboDrive’s flagship stator-rotor sets to deliver unsurpassed power density at maximum torque range, as well as excellent overload capability. Signals, media, fluids, rays and cables can be passed through the drive unit thanks to its roomy hollow shaft.
An integrated absolute encoder and integrated safety brake ensure excellent speed stability, dynamic stopping and torque-holding capabilities and high positioning accuracy. Additional gear elements, spindle nuts, optics or serial actuators can be integrated to expand the field of application. Alternative voltage levels, increased speed and customized torque adaptations are available on request.

General data/basic data

  • 210 W
Nominal torque:
  • 0.54 Nm
Peak torque:
  • 1.75 Nm
  • 3870 rpm

Performance characteristics

Nominal voltage:
  • 48 V
Nominal current:
  • 5.3 A
Torque constant:
  • 103 mNm/A
Terminal resistance:
  • 770 mΩ
Number of pole pairs:
  • 10


  • 61 mm
Usable hollow shaft inner diameter:
  • 17 mm
Motor length without brake:
  • 64.2 mm
Motor length with brake:
  • 80 mm
Weight without brake:
  • 530 g
Weight brake:
  • 685 g

Additional information

Sensor type:
  • Magnetic rotary encoder, BiSS-C differential, accuracy ± 0.1°, supply voltage Udd = 5 V
Detail specification:
  • See data sheet

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