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igus® inc.

PO BOX 14349

East Providence

RI 02914

+1 800 521 2747
+1 401 438 7270

Compact, lightweight design
drygear® planetary gearbox in Installation Size 17

robolink D joint for UR robots

Maintenance-free planetary gearbox

The planetary gearbox is impressive because of its very compact and lightweight design. It distributes the load over several gears, so it can transmit high torques. Its high-performance polymer ensures quiet, smooth operation.

  • Available transmission: 4:1, 16:1
  • Standard motor option: NEMA17 stepper motor
  • Max. output torque: 1Nm (4:1), 3Nm (16:1)
  • INI for position determination available (optional)
  • Direct motor connection or drive shaft possible
  • Output via adapter disc or shaft possible

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Tech up with igus news

Improve technology

  • Tribologically optimised high-performance polymers
  • Flexible use of motors from the drylin® E product range
  • Without lubrication for the planetary gears in the gearbox
  • Lightweight construction (149.1g with a transmission of 4:1)

Cost down with igus news

Cost down

  • Maintenance-free thanks to iglidur polymer gears
  • Cost-effective gearbox unit with motor
  • Uses injection moulded and 3D printed components
  • Energy efficiency thanks to weight savings

evidence from igus news


  • Gearbox performance data determined in comprehensive testing
  • High efficiency, runs very smoothly

recycling with igus news


  • Lubrication-free
  • Replaceable components
  • igus® supports the circular economy of plastics and is investing in chemical recycling. Learn more about this topic at Plastic2Oil.

Planetary gearbox torque fluctuations
Planetary gearbox test results

Technical data

Planetary gearbox transmission 4:1

  • Part number: RL-P-17-4
  • Weight: 149.1 g
  • Number of gear stages: 1
  • Max. drive speed: > 700rpm
  • Efficiency: > 90%
  • Backlash: > 7°
  • Mechanical service life: 1,000,000 cycles (at 1 Nm and 25rpm)

Planetary gearbox transmission 16

  • Part number: RL-P-17
  • Weight: 191.3g
  • Number of gear stages: 2
  • Max. drive speed: > 700rpm
  • Efficiency: > 80%
  • Backlash: > 7°
  • Mechanical service life: 1,000,000 cycles (at 3Nm and 25rpm)


Technical data RL-P-17-4-AA
Technical data RL-P-17-AA

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