Servo-Kits ILM115x50618 W | 9.51 Nm | 620 rpm | 48 V

Frameless, hollow-shaft 115x50 stator-rotor kits. Discover market-leading torque density and maximum freedom of design for structurally integrated drive engineering.

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
  • Redundant windings available
  • 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).
They are ideally suited for applications in extremely demanding environments, delivering market-leading torque density, unsurpassed precision and excellent overload capability in an exceptionally compact design.

General data/basic data

  • 618 W
Nominal torque:
  • 9.51 Nm
Peak torque:
  • 31.4 Nm
  • 620 rpm
  • 2170 g

Performance characteristics

Nominal voltage:
  • 48 V
Nominal current:
  • 15.1 A
Torque constant:
  • 640 mNm/A
Terminal resistance:
  • 254 mΩ
Number of pole pairs:
  • 15
Max. Efficiency:
  • 92 %


Outer diameter of stator:
  • 115 mm
Length Stator:
  • 68 mm
Inner diameter rotor:
  • 74 mm
Length Rotor:
  • 54.2 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 ILM115x50 Hall (398 KB, zip)

3D File ILM115x50 (305 KB, zip)

Drawing ILM115x50 (2 MB, pdf)

Double Rotor Gluing Guideline (170 KB, pdf)

Extended datasheet ILM115x50 (458 KB, pdf)

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

Price* per piece for standard variant

1.764,10 € (1-3)

*price excl. VAT and freight cost

Price* per piece for Hall variant

2.120,30 € (1-3)

*price excl. VAT and freight cost

For shipping within the EU only

Got more questions? Check our FAQ for further information.


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