Dunkermoteren PLG40LB Series Planetary Gearbox
The Dunkermotoren PLG 40 LB Series Planetary Gearbox is a low-backlash, high-efficiency gear solution designed for dynamic and high-precision drive applications. With reduction ratios from 3:1 to 120:1 and continuous torque capabilities up to 20 Nm, this gearbox is ideal for use in robotics, automation, and motion control systems where reliable ...
Read MoreThe Dunkermotoren PLG 40 LB Series Planetary Gearbox is a low-backlash, high-efficiency gear solution designed for dynamic and high-precision drive applications. With reduction ratios from 3:1 to 120:1 and continuous torque capabilities up to 20 Nm, this gearbox is ideal for use in robotics, automation, and motion control systems where reliable torque transmission and compact design are essential.
Key features include a hardened steel ring gear and needle-bearing-mounted planetary wheels for extended service life beyond 20,000 operating hours. The PLG 40 LB supports 1-, 2-, and 3-stage configurations, offering maximum flexibility in adapting to various speed and torque requirements. It delivers high efficiency—up to 97% in single-stage versions—and supports axial loads up to 65 N and radial loads up to 200 N, 13 mm from the mounting surface.
With IP52 protection as standard (and optional upgrades to IP54 or IP65), this gearbox is well-suited for challenging environments. Optional variants include food-grade or low-temperature lubrication, making it adaptable for both industrial and specialty applications.
For high-performance, maintenance-free gear reduction in space-limited applications, the Dunkermotoren PLG 40 LB Series delivers low-backlash precision and long-term durability.
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Features
- Low-Backlash Design: Engineered for precision motion control, the PLG 40 LB features reduced backlash, making it ideal for applications requiring accurate positioning and repeatability.
- High Torque Output in Compact Form: Delivers continuous torque up to 20 Nm and peak torque up to 35 Nm, all within a compact housing suited for tight installation spaces.
- Extended Service Life: Built for longevity, with hardened steel ring gears and needle-bearing-supported planetary wheels that enable over 20,000 hours of reliable operation.
- Wide Ratio and Stage Flexibility: Available in 1-, 2-, and 3-stage configurations with reduction ratios from 3:1 to 120:1, allowing optimal speed-torque matching across diverse applications.
- High Efficiency and Load Capacity: Achieves up to 97% efficiency in single-stage versions and supports axial loads up to 65 N and radial loads up to 200 N (13 mm from mounting face).
- Adaptable for Harsh Environments: Standard IP52 protection with optional upgrades to IP54 or IP65, plus available food-grade and low-temperature lubrication for specialized applications.
Specifications
| PLG40 LB Specifications |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Reduction Ratio | - | 3 | 4 | 5 | 7 | 8 | 10 | 9 | 12 | 15 | 16 | 20 | 25 | 32 | 40 | 64 |
| Efficiency | % | 97 | 95 | |||||||||||||
| Number of Stages | - | 1 | 2 | |||||||||||||
| Continous Torque 1) | Nm | 4 | 7 | 7 | 6 | 5 | 4 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 6 |
| Continous Torque 2) 5) | Nm | 9 | 15 | 14 | 8.5 | 6 | 5 | 16.5 | 20 | 18 | 20 | 20 | 18 | 20 | 18 | 7.5 |
| Acceleration torque 3) | Nm | 8 | 14 | 14 | 8.5 | 6 | 5 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 7.5 |
| Emergency stop torque 4) | Nm | 19 | 25 | 31 | 26 | 27 | 27 | 33 | 40 | 36 | 40 | 40 | 36 | 40 | 36 | 27 |
| Max. backlash | arcmin | 15 | 19 | |||||||||||||
| Weight of Gearbox | kg | 0.4 | 0.5 | |||||||||||||
| Axial Load / Radial Load (13 mm off mounting surface) 5 | N | 65/200 | ||||||||||||||
| 1) S8 Operation mode (alternating load) motor speed = 3000 rpm 2) S1 Operation mode (swelling load) gearbox output speed = 100 rpm; service lifetime check by application consulting required/ 3) S8 Operating mode (alternating load); within max. 1 second 4) Statically 100 times alternating 5) Related to gearbox output speed = 100 rpm |
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Warranty & Returns
Warranty periods vary by product. Please refer to the Powerbox Warranty Policy for the applicable coverage period against manufacturing defects from date of purchase. For returns and RMA requests, please visit our RMA support page or contact our support team directly.
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