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AH Series Heavy-Duty Planetary Gearbox
The AH Series is a heavy-duty planetary gearbox designed for industrial applications requiring high output torque, strong load capacity and reliable continuous operation. Its rigid construction and needle roller bearing design provide stable transmission and enhanced load capacity under demanding operating conditions.
Frame Sizes
AH042–AH150
Gear Ratios
3:1–250:1
Heavy-Duty Design
High Torque Capacity
Needle Roller Bearings
High Radial Load Capacity
Overview
The AH Series planetary gearbox is engineered for heavy-duty applications where high torque capacity, output rigidity and load durability are required. Its robust housing and needle roller bearing structure provide reliable support for demanding radial loads while maintaining stable transmission performance.
With six frame sizes, reduction ratios from 3:1 to 250:1 and up to three reduction stages available, the AH Series provides flexible solutions for industrial machinery, material handling equipment, automation systems and other high-load motion applications.
AH Series Key Features
The AH Series is designed for heavy-duty transmission applications, combining high torque capacity, needle roller bearing support, a wide reduction ratio range and long service life.
Heavy-Duty Performance
Robust construction provides high torque capacity and reliable transmission for demanding industrial drive applications.
Needle Roller Bearing Design
Needle roller bearings provide high radial load capacity in a compact structure for stable heavy-duty operation.
Wide Reduction Ratio Range
1-stage, 2-stage and 3-stage configurations cover ratios from 3:1 to 250:1 for speed and torque needs.
Long Service Life
Long-life grease lubrication and durable construction support reliable operation with lower maintenance requirements.
AH Series Models & Selection
|
Model |
Frame Size |
Stages |
Ratio Range |
1-Stage Backlash |
2-Stage Backlash |
Noise |
|
AH042 |
42 mm |
1 / 2 / 3 |
3:1–250:1 |
≤10 arcmin |
≤12 arcmin |
≤65 dB |
|
AH060 |
60 mm |
1 / 2 / 3 |
3:1–250:1 |
≤10 arcmin |
≤12 arcmin |
≤65 dB |
|
AH080 |
80 mm |
1 / 2 / 3 |
3:1–250:1 |
≤10 arcmin |
≤12 arcmin |
≤64 dB |
|
AH090 |
90 mm |
1 / 2 / 3 |
3:1–250:1 |
≤10 arcmin |
≤12 arcmin |
≤64 dB |
|
AH120 |
120 mm |
1 / 2 / 3 |
3:1–250:1 |
≤10 arcmin |
≤12 arcmin |
≤64 dB |
|
AH150 |
150 mm |
1 / 2 / 3 |
3:1–250:1 |
≤10 arcmin |
≤12 arcmin |
≤64 dB |
AH Series Planetary Gearbox Dimensions & Drawings
AH120 1-Stage Dimensions

AH120 2-Stage Dimensions

Drawings & CAD Files
AH Series Motor Compatibility
Compatible Motor Types

Servo Motors
Suitable for high-torque positioning, heavy-duty automation and servo-driven machinery.

Stepper Motors
Suitable for positioning, indexing and compact motion systems requiring higher load capacity.
Compatible Servo Motor Brands
The AH Series can be matched with a wide range of mainstream servo motor brands using suitable adapter flanges for heavy-duty motion and positioning applications. 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 AH Series
Heavy Industrial Machinery
High torque capacity and robust construction support demanding machinery and high-load drive systems.
Material Handling Equipment
Suitable for conveyors, lifting systems and handling equipment requiring reliable torque transmission under continuous loads.
CNC & Machine Tools
Rigid construction supports machine tool axes and industrial positioning systems subjected to significant mechanical loads.
Automated Production Lines
Reliable continuous operation makes the AH Series suitable for industrial automation and production machinery.
Gantry & Linear Motion Systems
Strong radial load capability supports gantry systems, linear axes and rack-and-pinion drive applications.
Heavy-Duty Servo Systems
Suitable for servo-driven machinery requiring high torque multiplication, strong load support and durable transmission.
Heavy-Duty Performance
High Output Torque
Designed for applications requiring strong torque multiplication and reliable power transmission.
High Radial Load Capacity
Needle roller bearing support and rigid output construction help withstand demanding radial loads.
Rigid Output Structure
Robust mechanical construction improves load stability and transmission reliability during continuous operation.
Long Operating Life
Durable components and long-life lubrication support extended service life in industrial environments.

Frequently Asked Questions
Related Products
Need Help Choosing the Right AH Series Gearbox?
Share your motor model, gear ratio, output torque or flange drawing. Our engineering team will help you configure the right AH Series gearbox and motor interface, usually within 1 business day.






