ZN Series Helical Planetary Gearbox (Round Housing)

 

 

The ZN Series Helical Planetary Gearbox (Round Housing) is a high-precision, low-backlash transmission solution designed for servo-driven automation, robotics, and industrial motion systems. Engineered under advanced design and manufacturing standards, the ZN Series combines helical gear technology with a rigid round housing structure to achieve exceptional efficiency, torque density, and smooth operation within a compact footprint. The precision-ground helical planetary gears offer high transmission accuracy, low noise, and extended operational life, making the ZN Series an ideal choice for both dynamic motion control and continuous-duty industrial applications.

 

 

Key Features

 

 

• Helical Planetary Gear System – Ensures smooth, quiet, and efficient torque transmission with minimal backlash.

• Round Housing Design – Offers maximum rigidity and alignment accuracy, reducing vibration and enhancing torque stability.

• Low Backlash Performance – Standard backlash ≤ 8 arcmin, with precision option ≤ 5 arcmin for high-accuracy servo applications.

• High Efficiency and Torque Density – Achieves up to 97% efficiency per stage with superior torque-to-size ratio.

• Precision-Ground Alloy Steel Gears – Carburized and hardened for durability and long service life under continuous load.

• Reinforced Bearing Support – Handles high axial and radial loads for improved mechanical reliability.

• Compact, Space-Saving Design – Ideal for installations where space and performance are both critical.

• Universal Motor Interface – Compatible with all standard servo, stepper, and brushless DC motors.

• Sealed Lubrication System – Maintenance-free grease lubrication for extended service intervals.

• Low Noise and Smooth Motion – Helical engagement significantly reduces vibration and operating sound.

 

 

Applications

 

 

The ZN Helical Planetary Gearbox (Round Housing) is ideal for a wide range of high-precision automation and industrial applications, including:

 

 

• Robotics and motion control axes – compact, precise, and smooth torque output for positioning systems

• CNC machinery and indexing tables – accurate motion and repeatable positioning with minimal backlash

• Packaging and labeling equipment – quiet and efficient drive performance for continuous operation

• Printing and textile machinery – stable torque output with low vibration at high speeds

• Material handling and conveyor systems – compact, high-torque transmission for demanding duty cycles

• Servo-driven manufacturing lines – precision torque control for synchronized motion systems

 

 

Performance Advantages

 

 

• Smooth and Quiet Power Transmission – Helical gears provide gradual engagement for vibration-free operation.

• Low Backlash and High Accuracy – Ensures repeatable positioning and reliable motion control.

• Compact Yet Powerful – High torque density enables smaller system design without sacrificing output performance.

• Durable Construction – Heat-treated gears and reinforced bearings ensure reliability under heavy load.

• Energy-Efficient Design – Optimized meshing geometry reduces friction and power loss.

• Maintenance-Free Operation – Factory-sealed lubrication for long-term, zero-maintenance use.

• Flexible Mounting – The round housing supports multiple installation orientations and features compact mechanical layouts.

 

 

Technical Benefits

 

 

• Gear Type: Helical planetary gear reducer

• Housing Design: Precision-machined round housing

• Reduction Ratios: Standard 3:1 to 100:1, custom options available

• Efficiency: Up to 95% per stage

• Backlash: ≤ 5 arcmin standard / ≤ 3 arcmin precision option (Single stage)

• Torque Capacity: High torque density for servo and industrial systems

• Housing Material: High-strength aluminum alloy or cast steel for rigidity and heat stability

• Gear Material: Carburized and precision-ground alloy steel

• Bearing System: High-load precision bearings for radial and axial load support

• Lubrication: Factory-filled synthetic grease (maintenance-free)

• Mounting Orientation: Universal installation — vertical, horizontal, or inverted

• Motor Compatibility: Servo, stepper, and brushless DC motors

 

 

Why Choose ZN Helical Planetary Gearbox (Round Housing)

 

 

The ZN Series Helical Planetary Gearbox combines high precision, compact design, and superior torque performance in one robust package. Its round housing enhances rigidity and concentricity, while the helical planetary gear system ensures quiet operation and consistent torque transfer. Built on the core principles of Power, Precision, and Productivity, the ZN Series is the ideal solution for servo motion systems, robotics, CNC equipment, and industrial automation that require low backlash, high efficiency, and long-term reliability.