GPL Robotic Planetary Gearbox
GAM’s revolutionary GPL Series Robotic Planetary Gearbox combines the lowest backlash and high tilting rigidity with vibration-free motion for smooth, controlled motion in robotics and motion control applications.
benefits
- Backlash ≤ 0.1 arcmin (6 arcsec), 10x better than other precision gearboxes
- Best-in-the-market torsional rigidity for ≤ 0.6 arcmin lost motion
- Operates vibration-free for superior positional accuracy and continuous controlled throughout the motion
- No adjustment required:Patented design guarantees backlash will not increase over the life time of the gearbox
- Operating life of 20,000 hours
- Industry-accepted proven performance
- Integrated motor adapter ready to mount your motor
- Replaces direct drive motors at significant cost savings
- Exceed the performance of a cycloidal gearbox in almost every application

Get CAD Models & Tech Specs with our Online Product Catalog
search our catalogUnique Gearing for Lifetime Precision
The GPL employs a unique gearing arrangement to maintain zero-backlash for the operation life of the gearbox as shown in this video.
- Helical pinion and gear: high ratios and quiet operation
- Planetary spur: fixed ratio
- Conical spur: lifetime zero backlash
GPL Planetary vs. Cycloidal
The performance of a GPL zero-backlash planetary gearbox exceeeds that of a cycloidal gearbox
INDUSTRY STANDARD: Cycloidal Gearbox | NEW STANDARD: GPL Robotic Planetary Gearbox |
60 arcsec backlash | 6 arcsec backlash - 10 times better backlash |
Vibration during motion | Vibration free-motion |
Adjustment required | Backlash maintained for rated life - no adjustment needed |
6,000 hours rated life | 20,000 hours rated life 3+ times better life |
GPL Robotic Planetary Models
GPL-F

- Flange output
- Sizes 056 to 400
- Ratios 50:1 to 200:1
- Nominal Torque 445 to 3500 Nm
GPL-H

- Hollow Flange output
- Sizes 057 to 400
- Ratios 35.5:1 to 131.1:1
- Nominal Torque 445 to 3500 Nm
Application Stories

Collaboration Increases Precision, Reduces Assembly Time
Cleveland Deburring Machine Company (CDMC) designs and manufactures equipment for many different methods of deburring. They needed a replacement gearbox for…
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GAM GPL Replaces Direct Drive Motor for Significant Cost Savings
A GAM customer had an application requiring multiple configurations, zero-backlash, and a shrink disc connection. Their current solution used multiple sizes…
read moreCollaborate with GAM
We have the ability to customize & modify all our products. Our team of engineers will collaborate with you to produce your desired result.
PDF Resources
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