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PL Series High-Precision Spur Planetary Gearbox
The PL Series high-precision spur planetary gearbox is designed for servo- and stepper-motor-driven applications. Featuring an inline design, compact frame, backlash as low as ≤6 arcmin and transmission efficiency of ≥97%, it provides reliable torque transmission and precise positioning for industrial automation, CNC machinery, robotics and AGVs. Custom input flanges and output shaft configurations are available to match a wide range of motor brands and installation requirements.
Frame Sizes
PL040–PL120
Gear Ratios
3:1–100:1
Low Backlash
≤6–10 arcmin
High Efficiency
Up to 97%
Overview
The PL Series spur planetary gearbox combines a compact inline structure with precision-machined spur gears, providing reliable torque transmission, transmission efficiency of ≥97% for 1-stage configurations, and stable positioning performance for industrial automation applications.
The series is available in PL040, PL060, PL080, PL090 and PL120 frame sizes, with 1-stage and 2-stage configurations covering reduction ratios from 3:1 to 100:1. It can be matched with servo motors, stepper motors and other compatible motor types using suitable adapter flanges. Standard specifications include IP65 protection, long-life grease lubrication and an operating temperature range from -20°C to +90°C.
PL Series Key Features
The PL Series combines compact spur planetary transmission, high efficiency, reliable positioning accuracy and durable industrial construction for servo-driven motion applications.
Spur Gear Transmission
Precision-machined spur gears provide stable torque transmission and dependable performance for industrial automation.
High Efficiency
Transmission efficiency reaches ≥97% for 1-stage and ≥94% for 2-stage configurations.
Compact Planetary Design
The planetary structure provides high torque density in a compact housing for space-limited installations.
IP65 Protection
IP65 protection supports reliable operation in demanding industrial environments.
PL Series Models & Selection
|
Model |
Frame Size |
Stages |
Ratio Range |
1-Stage Backlash |
2-Stage Backlash |
Noise |
|
PL040 |
40 mm |
1 / 2 |
3:1–100:1 |
≤8 arcmin |
≤10 arcmin |
≤68 dB |
|
PL060 |
60 mm |
1 / 2 |
3:1–100:1 |
≤8 arcmin |
≤10 arcmin |
≤60 dB |
|
PL080 |
80 mm |
1 / 2 |
3:1–100:1 |
≤6 arcmin |
≤8 arcmin |
≤72 dB |
|
PL090 |
90 mm |
1 / 2 |
3:1–100:1 |
≤6 arcmin |
≤8 arcmin |
≤72 dB |
|
PL120 |
120 mm |
1 / 2 |
3:1–100:1 |
≤6 arcmin |
≤8 arcmin |
≤74 dB |
PL Series Spur Planetary Gearbox Dimensions & Drawings
PL90 Series 1-Stage Dimensions
PL90 Series 2-Stage Dimensions
Drawings & CAD Files
PL Series Motor Compatibility
Compatible Motor Types
Servo Motors
Suitable for positioning, indexing and servo-driven automation applications.
Stepper Motors
Suitable for compact positioning, indexing and repetitive motion systems.
Compatible Servo Motor Brands
The PL Series can be matched with a wide range of mainstream servo motor brands using suitable adapter flanges. Please share the motor brand, model, flange dimensions and shaft specifications for matching confirmation.
Panasonic
Yaskawa
Mitsubishi Electric
Omron
Fuji Electric
SANYO DENKI
KEYENCE
Toshiba
Tamagawa Seiki
NIKKI DENSO
SANMEI
Miki Pulley
Shinko Electric
NIDEC SANKYO
Delta
LUST
Bosch Rexroth
Hitachi Industrial Equipment Systems
Typical Applications of the PL Series
Packaging & Labeling Equipment
Reliable transmission for packaging, labeling and automated production machinery.
Conveyors & Material Handling
Compact planetary transmission supports conveyors, handling equipment and general industrial drive systems.
CNC Auxiliary Axes
Suitable for auxiliary positioning, indexing and feed mechanisms requiring stable motion transmission.
Automated Production Lines
Reliable continuous operation supports repetitive industrial automation and production equipment.
Gantry & Linear Motion Systems
Stable torque transmission supports linear axes, gantry mechanisms and rack-and-pinion applications.
Servo Motion Systems
Suitable for positioning, speed reduction and general servo-driven motion-control applications
Frequently Asked Questions
Related Products
Need Help Choosing the Right PL Series Gearbox?
Share your motor model, required gear ratio, output torque or flange drawing. Our engineering team will help confirm a suitable PL Series gearbox and motor interface, usually within 1 business day.