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High Precision Planetary Gearbox
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High Precision Planetary Gearbox

PGH AB High Precision Planetary Gearbox, developed by Lishui Hengli Automation Technology Co., Ltd., integrates helical gear and planetary transmission structures. With a reduction ratio of 3-320, backlash ≤3 arcmin, efficiency of 92%-97%, and torque up to 2560N·m, it features high rigidity, low noise, and maintenance-free performance. Compatible with servo/stepper motors, it’s a core power transmission component for high-precision mechanical systems.
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Product Introduction

II.Product Introduction & Features

1. Operating Principle

The High Precision Planetary Gearbox operates on the core principle of "sun gear drive + planetary gear revolution and rotation". Power from the motor is transmitted to multiple planetary gears via the sun gear; the planetary gears mesh with the inner gear ring to rotate while driving the planetary carrier for power output. Helical gear meshing optimizes force transmission, achieving precise speed reduction and torque amplification.

2. Product Advantages

High Precision & Low Backlash: 45° helical gear design with multi-tooth meshing increases contact area by 35%, backlash ≤3 arcmin (high-precision type ≤1 arcmin), ensuring stable precision during long-term operation.

High Efficiency & Low Noise: Transmission efficiency up to 92%-97%, dual-support planetary carrier reduces friction, operating noise ≤60dB, and low vibration under heavy load.

Durable & Maintenance-Free: 20CrMnTi alloy gears with carburizing and quenching treatment, integrated planetary carrier for strong impact resistance, maintenance-free service life over 10,000 hours.

Strong Compatibility: Customizable by Lishui Hengli Automation Technology Co., Ltd. for special requirements (single-stage, two-stage, keyway, input/output shaft, etc.), compatible with international and domestic mainstream motor models.

3. Specifications & Selection

Core Specifications: Reduction ratio 3-1000, output torque up to 2560N·m, available in 42/60/90/115/142/180/220 series, protection class optional IP65/IP67.

Selection Recommendations: High-precision type for CNC machine tools and robot joints; standard type for automated production lines; IP65/IP67 protection type for outdoor new energy equipment. Choose models based on equipment torque, speed, and installation space.

Specifications Stage Ratio PHG-42 PHG-60 PHG-90 PHG-115 PHG-142 PHG-180 PHG-220
Norminal Output Torque N·m L1 3 19 53 145 290 520 950 1100
4 20 55 150 300 550 1000 1700
5 17 54 140 290 600 1050 2000
6 15 46 135 280 560 1000 1850
7 14 44 125 270 530 960 1750
8 12 41 110 240 480 900 1550
3 11 37 95 220 430 800 1500
10 11 37 95 220 430 800 1450
Stage Ratio PHG-42 PHG-60 PHG-90 PHG-115 PHG-142 PHG-180 PHG-220
L2 15 19 53 145 290 520 950 1100
20 20 55 150 300 550 1000 1700
25 17 54 140 290 600 1050 2000
30 17 54 140 290 600 1050 2000
35 17 54 140 290 600 1050 2000
40 17 54 140 290 600 1050 2000
45 17 54 140 290 600 1050 2000
50 17 54 140 290 600 1050 2000
60 15 46 135 280 560 1000 1850
70 14 44 125 270 530 960 1750
80 12 41 110 240 480 900 1550
90 11 37 95 220 430 800 1500
100 11 37 95 220 430 800 1450
Emergency Stop Speed N·m   3.0 times of Norminal Output Torque
Maximum Output Torque T=60% of Emergency Stop Torque
Nominal Input Speed rpm L1/2 3-100 5000 5000 4000 4000 3000 3000 2000
Maximum Input Speed rpm L1/2 3-100 10000 10000 8000 8000 6000 6000 4000
Micro Backlash P0 arcmin L1 3-10 ≤2 ≤2 ≤2 ≤1 ≤1 ≤1 ≤1
L2 15-100 ≤4 ≤4 ≤4 ≤3 ≤3 ≤3 ≤3
Precision Backlash P1 arcmin L1 3-10 ≤4 ≤4 ≤4 ≤3 ≤3 ≤3 ≤3
L2 15-100 ≤6 ≤6 ≤6 ≤5 ≤5 ≤5 ≤5
Standard Backlash P2 arcmin L1 3-10 ≤6 ≤6 ≤6 ≤5 ≤5 ≤5 ≤5
L2 15-100 ≤8 ≤8 ≤8 ≤7 ≤7 ≤7 ≤7
Torsional Rigidity N·m
/arcmin		 L1/2 3-100 2.5 6 12 23 50 145 220
Maximum Radial Load N L1/2 3-100 760 1570 2780 5340 9000 14000 31810
Maximum Axial Load N L1/2 3-100 410 750 1870 3310 5670 6460 18530
Operating Temp. ℃   3-100 -10℃~+90℃
Service life hr   3-100 20000(10000/Continuous operation)
Efficiency % L1 3-10 ≥97%
L2 15-100 ≥97%
Weight kg L1 3-10 0.6 1.3 3.5 7.8 16.1 27 55
L2 15-100 0.9 2.0/1.6 5.6/3.9 9.5 19 34 68.5
Mounting Position - L1/2 3-100 Any direction
Noise Level dBA/1m L1/2 3-100 56 58 60 63 65 67 70
Protection Class - L1/2 3-100 IP65
Lubrication - L1/2 3-100 Synthetic Lubricant

III.Application Scenarios

This High Precision Planetary Gearbox is widely used in industrial robot joint drive, CNC machine tool processing, semiconductor packaging equipment, medical surgical instruments, new energy power generation devices, automated assembly lines, and precision testing instruments. It serves high-precision control scenarios in precision manufacturing, new energy, medical, and electronic industries.

 

product-750-511

IV.logistics

Lishui Hengli Automation is a manufacturing-oriented foreign trade enterprise that integrates industry and trade for high efficiency and collaboration. It possesses its own overseas warehouses and a mature transportation system.

V.Contact Us

For quotation, customization, cooperation, after-sales service, etc., please contact

Email: admin@hengli-hltnc.com

Whatsapp: +86 13884328311

WeChat: 18767839274

https://www.youtube.com/@HLTNC

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