Gearboxes

Dunkermoteren PLG42K Series Planetary Gearbox

The Dunkermotoren PLG 42K Series Planetary Gearbox is a compact, high-efficiency gear solution designed for precision applications that demand reliable torque transmission in a small form factor. With reduction ratios from 4:1 up to 512:1 and continuous torque capabilities reaching 3 Nm, this gearbox is ideal for robotics, medical devices, and light industrial automation.

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Features

  • Compact, High-Efficiency Design: Delivers up to 3 Nm of continuous torque with up to 90% efficiency in single-stage models—perfect for space-constrained automation systems.
  • Wide Range of Gear Ratios: Available in 1-, 2-, and 3-stage configurations with reduction ratios from 4:1 to 512:1, offering flexibility for speed-torque optimisation.
  • Dual Ball Bearing Support: Output shaft is supported by double ball bearings, ensuring smooth operation and extended service life under axial and radial loads.
  • Lightweight Yet Durable Build: Features a high-performance plastic ring gear for weight reduction without compromising strength or long-term performance.
  • Maintenance-Free Operation: Factory-lubricated for life and designed for quiet, reliable performance—no routine maintenance required.
  • High Load Handling Capability: Supports axial loads up to 150 N and radial loads up to 230 N, making it ideal for dynamic and precision-driven motion systems.
Specifications
PLG42K Specifications
Reduction Ratio - 4 6.25 8 16 25 32 50 64 100 128 156.25 200 256 312.5 400 512
Efficiency % 90 81 73
Number of Stages - 1 2 3
Continous Torque Nm 0.7 1.3 3
Weight of Gearbox kg 0.16 0.20 0.25
Axial Load / Radial Load* N 150 / 230 150 / 230 150 / 230
* From center of shaft

 

Downloads
plg_42k_Gearbox_Datasheet.pdf
PLG42K Specifications
Reduction Ratio - 4 6.25 8 16 25 32 50 64 100 128 156.25 200 256 312.5 400 512
Efficiency % 90 81 73
Number of Stages - 1 2 3
Continous Torque Nm 0.7 1.3 3
Weight of Gearbox kg 0.16 0.20 0.25
Axial Load / Radial Load* N 150 / 230 150 / 230 150 / 230
* From center of shaft

 

plg_42k_Gearbox_Datasheet.pdf

Find the Right Model

Model Number Reduction Ratio Continuous Torque (Nm) Number of Stages
product variant PLG42K-4 4 0.7 1
product variant PLG42K-6.25 6.25 0.7 1
product variant PLG42K-8 8 0.7 1
product variant PLG42K-16 16 1.3 2
product variant PLG42K-25 25 1.3 2
product variant PLG42K-32 32 1.3 2
product variant PLG42K-50 50 1.3 2
product variant PLG42K-64 64 1.3 2
product variant PLG42K-100 100 3 3
product variant PLG42K-128 128 3 3
product variant PLG42K-156.25 156.25 3 3
product variant PLG42K-200 200 3 3
product variant PLG42K-256 256 3 3
product variant PLG42K-312.5 312.5 3 3
product variant PLG42K-400 400 3 3
product variant PLG42K-512 512 3 3

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