Servo kits ILM85x04 290 W | 0.30 Nm | 9250 rpm | 48 V

Frameless, hollow-shaft ILM85x04 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 ILM85
  • 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).
The motors deliver market-leading torque density, unsurpassed precision and excellent overload capability in an exceptionally compact design for applications in extremely demanding environments.

General data/basic data

  • 290 W
Nominal torque:
  • 0.30 Nm
Peak torque:
  • 0.99 Nm
  • 9250 rpm
  • 210 g

Performance characteristics

Nominal voltage:
  • 48 V
Nominal current:
  • 7.2 A
Torque constant:
  • 43 mNm/A
Terminal resistance:
  • 220 mΩ
Number of pole pairs:
  • 10
Max. Efficiency:
  • 92 %


Outer diameter of stator:
  • 85 mm
Length Stator:
  • 17.6 mm
Inner diameter rotor:
  • 52 mm
Length Rotor:
  • 7.1 mm

Additional information

Detail specification:
  • See data sheet
  • The above data is for star-serial interconnection. Please download the datasheet for other interconnection values.

3D File ILM85x04 Hall (612 KB, zip)

3D File ILM85x04 (522 KB, zip)

Double Rotor Gluing Guideline (170 KB, pdf)

Drawing ILM85x04 (1,012 KB, pdf)

Extended datasheet ILM85x04 (567 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.