5GN Gearbox & Gearhead (12mm & 15mm Shaft Options) for AC / DC Gear Motors
Compact 5GN gearhead designed with 12mm and 15mm shaft options, offering reliable performance for 40W–120W AC and DC gear motors. Engineered for precise speed reduction, stable torque output, and long service life in conveyors, automation systems, packaging equipment, semiconductor machinery, and other light-industrial applications.
Product Highlights
Wide Reduction Ratios
Offers a wide range of reduction ratios from 3:1 to 500:1, delivering precise speed control and strong torque performance for both AC and DC motor systems.
Compact & Durable
High-strength metal housing ensures durable, reliable performance in continuous industrial use, while the compact design saves installation space.
Two Shaft Diameter Options
Offers two shaft diameter options—12mm (5GN…K) and 15mm (5GN…KB)—allowing precise selection for different torque levels and motor power ratings across AC and DC systems.
Motor Compatibility
Compatible with 40W, 60W, 90W, and 120W AC motors, and equally suited for matching power-rated DC motors (12V/24V/90V), offering broad flexibility across industrial and automation applications.
Description
Specifications
Overview
The 5GN Gearbox / Gearhead Series is engineered for 40W–120W AC and DC motors, providing reliable precision speed reduction and high torque transmission in compact industrial automation equipment. Built with high-strength metal gears and robust construction, these gearboxes ensure long service life and versatile installation options for both stationary machines and mobile robotics.
Key Features
- ⚙️ Dual Shaft Options: 12mm (5GN…K) and 15mm (5GN…KB) shafts for different torque requirements.
- 🔩 Wide Motor Compatibility: Works with 40W, 60W, 90W, and 120W AC & DC Motors for various applications.
- 🔧 High Durability: Reinforced gear train with high-strength metal casing ensures long-lasting performance.
- 🛠️ Multiple Reduction Ratios: Includes 3, 5, 7.5,10,15,18, 20, 25,30,36,40, 50, 75, 90,100, 120,150,180,200, 300, 500 for flexible output speed and torque.
- ⚡ Quiet Operation: Smooth gear engagement minimizes vibration and noise.
- 🔩 Easy Installation: Designed for direct motor coupling with standard mounting dimensions.
- 🛠️ Long Service Life: Factory-lubricated and sealed gear train for maintenance-free operation.
- ⚙️ Versatile Applications: Suitable for conveyors, packaging, automation, material handling, and small industrial machinery.
Applications
- 🚚 Conveyor Systems: Reliable speed reduction and high torque for smooth motion in belt conveyors, roller conveyors, and logistics sorting systems.
- 🤖 Industrial Automation: Compact and precise gear reduction for small-scale CNC machinery, robotic arms, and Automated Guided Vehicles (AGVs), compatible with AC/DC drives.
- 🏭 Packaging & Labeling: Accurate speed and consistent output torque essential for high-cycle sealing, filling, and labeling machine performance.
- 📦 Warehouse & Material Handling: Ensures stable operation and safe load positioning in lifts, hoists, and Automated Storage and Retrieval Systems (AS/RS).
- ⚙️ Light Industrial Machinery: Ideal for small machines requiring compact, high-torque gear reduction and motor compatibility for both AC and DC configurations.
All OUBANG 5GN Gearboxes are factory-tested, built with high-strength metal gears, and customizable for different industrial automation setups.
Specifications
| Parameter | 5GN…K (12mm Shaft) | 5GN…KB (15mm Shaft) |
|---|---|---|
| Compatible Motor Power | AC & DC Motors(40W / 60W / 90W / 120W) | AC & DC Motors(40W / 60W / 90W / 120W) |
| Shaft Diameter | 12 mm | 15 mm |
| Mounting Size | Standard 90 × 90 mm | Standard 90 × 90 mm |
| Reduction Ratios | 3 / 5 / 10 / 20 / 30 / 50 / 75 / 100 / 180 / 300 / 500 | Same |
| Max Output Torque | Depends on motor & ratio | Higher torque stability |
| Gear Type | Helical / Spur combination | Reinforced gear structure |
| Casing Material | High-strength metal | High-strength metal |
| Lubrication | Grease, factory sealed | Grease, factory sealed |
| Operating Temperature | –10°C ~ +40°C | –10°C ~ +40°C |
| Installation Method | Direct motor coupling | Direct motor coupling |
Both 12mm and 15mm output shaft diameters are available. The 15mm 5GN…KB series is recommended for higher torque applications.
Gearbox and Performance
The 5GN Gearbox can be paired with compatible AC motors depending on your equipment’s torque requirements.
| Reduction Ratio | 3 | 5 | 10 | 20 | 30 | 50 | 75 | 100 | 180 | 300 | 500 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Output Speed (r/min, 50Hz) | Motor speed ÷ 3 | ÷5 | ÷10 | ÷20 | ÷30 | ÷50 | ÷75 | ÷100 | ÷180 | ÷300 | ÷500 |
| Output Speed (r/min, 60Hz) | Motor speed ÷ 3 | ÷5 | ÷10 | ÷20 | ÷30 | ÷50 | ÷75 | ÷100 | ÷180 | ÷300 | ÷500 |
| Max Torque (kg·cm) | Depends on motor & ratio | Higher torque stability | Same | Same | Same | Same | Same | Same | Same | Same | Same |
All 5GN Gearboxes from OUBANG Motor offer compact design, stable output, and long lifespan—ideal for conveyors, automation lines, and light industrial machinery.
Selection & Service
We provide flexible options for reduction ratio, motor power, shaft diameter, flange size, and mounting orientation. Both 12mm (5GN…K) and 15mm (5GN…KB) shafts are available. Custom shaft designs, coupling options, and OEM accessory kits can also be provided to meet specific automation application needs.
Certifications
Quality Management
Environmental Standard
European Conformity
China Compulsory Cert
👉 Related Products:
AC Speed Control Motor | AC Induction Gear Motor | AC Torque Motor | AC Brake Motor |AC Reversible Motor | AC Parallel Shaft Gear Motor | Brushed DC Gear Motor |
Brushless DC Gear Motor | Planetary Gearbox | Motor Drives &Controllers|