Servo-Kits ILM115x25 570 W | 3.9 Nm | 1400 rpm | 48 V

Frameless, hollow-shaft ILM115x25 stator-rotor kits for structurally integrated drive engineering. Discover original TQ-RoboDrive products for market-leading torque density and maximum freedom of design.

Frameless Motor ILM115
  • Frameless motors for highest design flexibility
  • Hollow-shaft capability
  • Low voltage 12V - 48V
  • Highest torque density and dynamics due to excellent copper fill factor
  • Low thermal losses by concentrated coils
  • Thermally optimized actuator design by structural integration and thermally conductive epoxy casting
  • Weight and installation space optimized drive system design based on load profile analysis
  • High control quality by high bandwidth and lowest harmonic component (lowest ripple)
The ILM Series of frameless, stator-rotor installation kits from TQ-RoboDrive utilize integrated drive engineering originally developed by the German Aerospace Center (DLR) for applications in extremely demanding environments.
The motors deliver market-leading torque density, unsurpassed precision and excellent overload capability in an exceptionally compact design.

General data/basic data

  • 570 W
Nominal torque:
  • 3.9 Nm
Peak torque:
  • 12.7 Nm
  • 1400 rpm
  • 1070 g

Performance characteristics

Nominal voltage:
  • 48 V
Nominal current:
  • 14.1 A
Torque constant:
  • 281 mNm/A
Terminal resistance:
  • 140 mΩ
Number of pole pairs:
  • 15
Max. Efficiency:
  • 93 %


Outer diameter of stator:
  • 115 mm
Length Stator:
  • 39.0 mm
Inner diameter rotor:
  • 74 mm
Length Rotor:
  • 27.1 mm

Additional information

Detail specification:
  • See data sheet
  • The above data is for star-serial interconnection. Please download the datasheet for other interconnection values.
  • The ILM servo-kits are supplied with a temperature sensor as standard. A digital hall sensor can be ordered at an additional cost.

3D File ILM115x25 (306 KB, zip)

Drawing ILM115x25 (1 MB, PDF)

Extended datasheet ILM115x25 (458 KB, pdf)

Assembly Instructions ILM Servo-Kits (3 MB, pdf)

Servo-Kit Productinformation ILM (880 KB, pdf)

Delivery time: 10-12 weeks

Got more questions? Check our FAQ for further information.