Micro Series

Overview Models Specifications Downloads FAQ Request Technical Evaluation
ARTUS micro planetary gearbox for robotics

PGR MICRO SERIES

Micro Planetary Gear Reducers for Compact Motion Systems

ARTUS PGR Micro Series planetary gear reducers provide compact multi-stage transmission for miniature actuators, robotics, precision mechanisms and space-constrained automation systems.

AVAILABLE IN MULTIPLE MODELS

View Specifications Request a Quote

PGR MICRO SERIES

PGR Micro Series Overview

Micro planetary gearboxes and gear reducers designed for miniature actuators, robotics and precision motion applications.

ModelFrame SizeStagesReduction RatiosRated TorqueInput Speed
PGR-088 mm1–43.8–731.160.2–0.4 kgf·cm≤ 8000 rpm
PGR-1010 mm1–43.5–509.11.3–2.0 kgf·cm≤ 8000 rpm
PGR-1212 mm1–43.5–509.12.0–4.2 kgf·cm≤ 8000 rpm
PGR-1414 mm1–43.75–471.63.5–6.0 kgf·cm≤ 8000 rpm
PGR-1616 mm1–43.85–459.54.0–9.0 kgf·cm≤ 8000 rpm
TECHNICAL SPECIFICATIONS

Micro Series Specifications

Compare gear stages, reduction ratios, dimensions and performance specifications for ARTUS PGR Micro Series planetary gear reducers.

ARTUS MODEL
PGR-08
SIZE / POSITIONING
Ø8 mm   |   1–4 Stages
ParameterUnit1 Stage2 Stage3 Stage4 Stage
Reduction Ratio:1 3.8 / 4.5 / 5.2 14.4 / 17.1 / 19.8 / 20.3 / 23.4 / 27 54.9 / 65 / 75.1 / 76.95 / 88.9 / 91.1 / 102.75 / 105.3 / 121.7 / 140.6 208.5 / 246.9 / 285.3 / 292.4 / 337.9 / 346.3 / 390.46 / 400.14 / 410.1 / 462.4 / 473.85 / 534.3 / 547.56 / 632.74 / 731.16
Gearbox Length Lmm10.1512.815.4518.1
Rated Permissible Torquekgf·cm0.20.250.30.4
Instantaneous Permissible Torquekgf·cm0.40.50.60.8
Efficiency%90%80%73%66%
Housing Material—SteelSteelSteelSteel
Gear Material—SteelSteelSteelSteel
Output Shaft Bearing—Ball BearingsBall BearingsBall BearingsBall Bearings
Radial Loadkgf≤ 0.4≤ 0.4≤ 0.4≤ 0.4
Axial Loadkgf≤ 0.1≤ 0.1≤ 0.1≤ 0.1
Radial Clearancemm≤ 0.04≤ 0.04≤ 0.04≤ 0.04
Axial Clearancemm≤ 0.15≤ 0.15≤ 0.15≤ 0.15
Backlash — No Load°≤ 1.5≤ 1.5≤ 1.5≤ 1.5
Max. Continuous Input Speedrpm≤ 8000≤ 8000≤ 8000≤ 8000
Operating Temperature°C−40 to 120−40 to 120−40 to 120−40 to 120
ARTUS MODEL
PGR-10
SIZE / POSITIONING
Ø10 mm   |   1–4 Stages
ParameterUnit1 Stage2 Stage3 Stage4 Stage
Reduction Ratio:13.5 / 4 / 4.75 12.25 / 14 / 16 / 16.6 / 19 / 22.6 42.9 / 49 / 56 / 58.2 / 64 / 66.5 / 76 / 79 / 90.25 / 107.2 150.1 / 171.5 / 196 / 203.7 / 224 / 232.7 / 256 / 266 / 276.4 / 304 / 315.9 / 361 / 375.1 / 428.7 / 509.1
Gearbox Length Lmm10.251315.7518.5
Rated Permissible Torquekgf·cm1.31.51.82.0
Instantaneous Permissible Torquekgf·cm2.63.03.64.0
Efficiency%90%80%73%66%
Housing Material—SteelSteelSteelSteel
Gear Material—SteelSteelSteelSteel
Output Shaft Bearing—Ball BearingsBall BearingsBall BearingsBall Bearings
Radial Loadkgf≤ 0.6≤ 0.6≤ 0.6≤ 0.6
Axial Loadkgf≤ 0.15≤ 0.15≤ 0.15≤ 0.15
Radial Clearancemm≤ 0.04≤ 0.04≤ 0.04≤ 0.04
Axial Clearancemm≤ 0.15≤ 0.15≤ 0.15≤ 0.15
Backlash — No Load°≤ 1.5≤ 1.5≤ 1.5≤ 1.5
Max. Continuous Input Speedrpm≤ 8000≤ 8000≤ 8000≤ 8000
Operating Temperature°C−40 to 120−40 to 120−40 to 120−40 to 120
ARTUS MODEL
PGR-12
SIZE / POSITIONING
Ø12 mm   |   1–4 Stages
ParameterUnit1 Stage2 Stage3 Stage4 Stage
Reduction Ratio:13.5 / 4 / 4.75 12.25 / 14 / 16 / 16.6 / 19 / 22.6 42.9 / 49 / 56 / 58.2 / 64 / 66.5 / 76 / 79 / 90.25 / 107.2 150.1 / 171.5 / 196 / 203.7 / 224 / 232.7 / 256 / 266 / 276.4 / 304 / 315.9 / 361 / 375.1 / 428.7 / 509.1
Gearbox Length Lmm11.3514.116.8519.6
Rated Permissible Torquekgf·cm2.03.03.64.2
Instantaneous Permissible Torquekgf·cm4.06.07.28.4
Efficiency%90%80%73%66%
Housing Material—SteelSteelSteelSteel
Gear Material—SteelSteelSteelSteel
Output Shaft Bearing—Ball BearingsBall BearingsBall BearingsBall Bearings
Radial Loadkgf≤ 0.8≤ 0.8≤ 0.8≤ 0.8
Axial Loadkgf≤ 0.25≤ 0.25≤ 0.25≤ 0.25
Radial Clearancemm≤ 0.04≤ 0.04≤ 0.04≤ 0.04
Axial Clearancemm≤ 0.2≤ 0.2≤ 0.2≤ 0.2
Backlash — No Load°≤ 1.5≤ 1.5≤ 1.5≤ 1.5
Max. Continuous Input Speedrpm≤ 8000≤ 8000≤ 8000≤ 8000
Operating Temperature°C−40 to 120−40 to 120−40 to 120−40 to 120
ARTUS MODEL
PGR-14
SIZE / POSITIONING
Ø14 mm   |   1–4 Stages
ParameterUnit1 Stage2 Stage3 Stage4 Stage
Reduction Ratio:1 3.75 / 4.38 / 4.66 14 / 16.4 / 17.5 / 19.2 / 20.4 / 21.7 52.7 / 61.6 / 65.5 / 71.9 / 76.5 / 81.4 / 84 / 89.4 / 95.1 / 101.2 197.75 / 231 / 245.75 / 269.8 / 287 / 305.4 / 315.1 / 335.25 / 356.7 / 368 / 379.5 / 391.6 / 416.6 / 443.2 / 471.6
Gearbox Length Lmm15.21922.826.6
Rated Permissible Torquekgf·cm3.54.05.06.0
Instantaneous Permissible Torquekgf·cm7.08.010.012.0
Efficiency%90%80%73%66%
Housing Material—SteelSteelSteelSteel
Gear Material—SteelSteelSteelSteel
Output Shaft Bearing—Ball BearingsBall BearingsBall BearingsBall Bearings
Radial Loadkgf≤ 0.8≤ 0.8≤ 0.8≤ 0.8
Axial Loadkgf≤ 0.25≤ 0.25≤ 0.25≤ 0.25
Radial Clearancemm≤ 0.04≤ 0.04≤ 0.04≤ 0.04
Axial Clearancemm≤ 0.2≤ 0.2≤ 0.2≤ 0.2
Backlash — No Load°≤ 1.5≤ 1.5≤ 1.5≤ 1.5
Max. Continuous Input Speedrpm≤ 8000≤ 8000≤ 8000≤ 8000
Operating Temperature°C−40 to 120−40 to 120−40 to 120−40 to 120
ARTUS MODEL
PGR-16
SIZE / POSITIONING
Ø16 mm   |   1–4 Stages
ParameterUnit1 Stage2 Stage3 Stage4 Stage
Reduction Ratio:1 3.85 / 4.33 / 4.63 14.8 / 16.7 / 17.8 / 18.7 / 20 / 21.4 57.1 / 64.2 / 68.6 / 72.2 / 77.2 / 81.2 / 82.5 / 86.8 / 92.8 / 99.25 219.7 / 247 / 264.2 / 277.9 / 297.2 / 312.55 / 317.75 / 334.2 / 351.5 / 357.4 / 375.9 / 382.1 / 401.9 / 429.8 / 459.5
Gearbox Length Lmm17.5521.8526.1530.45
Rated Permissible Torquekgf·cm4.05.07.09.0
Instantaneous Permissible Torquekgf·cm8.010.020.026.0
Efficiency%90%80%73%66%
Housing Material—SteelSteelSteelSteel
Gear Material—SteelSteelSteelSteel
Output Shaft Bearing—Ball BearingsBall BearingsBall BearingsBall Bearings
Radial Loadkgf≤ 1.6≤ 1.6≤ 1.6≤ 1.6
Axial Loadkgf≤ 0.5≤ 0.5≤ 0.5≤ 0.5
Radial Clearancemm≤ 0.04≤ 0.04≤ 0.04≤ 0.04
Axial Clearancemm≤ 0.2≤ 0.2≤ 0.2≤ 0.2
Backlash — No Load°≤ 1.5≤ 1.5≤ 1.5≤ 1.5
Max. Continuous Input Speedrpm≤ 8000≤ 8000≤ 8000≤ 8000
Operating Temperature°C−40 to 120−40 to 120−40 to 120−40 to 120
Available reduction ratios and performance values depend on gear stage and configuration. Contact ARTUS for application-specific selection.

Need Help Selecting a Micro Planetary Gear Reducer?

Share your motor size, torque, speed, reduction ratio and installation requirements with our engineering team.

Request Technical Evaluation

Where intelligence takes form,
intent becomes motion.

Products

Robot Joint Modules

Gear Reducers

Robotic Lifting Columns

CNC Machined Components

Company

About Us

Solutions

Contact Us

Resources

Downloads

News & Insights

Privacy Policy

Contact

Email: official@artuscn.com

Building 2, Jinhuanyu Science Park,
No.263 Changfeng Road, Guangming District, Shenzhen, Guangdong, China

© 2026 ARTUS Motion Systems Co., Ltd. All rights reserved.