NGW Reducer
- Scope of application : Metallurgy, mining, lifting and transportation, chemical industry, textile and other industries, support forward and reverse operation.
- Transmission ratio range : Single stage 2.8-12.5, three stage up to 180-2000, wide speed ratio span.
- Transmission efficiency : Single stage 97%-98%, three stage 91%-94%, the efficiency is higher than ordinary cylindrical gear reducer.
-
Applicable conditions :
Input shaft speed ≤1500r/min, gear circumferential speed ≤10m/s, operating temperature -40℃~45℃.
- INTRODUCTION
- SPECIFICATION
- RELATED
- INQUIRY
NGW Series Planetary Gear Reducer Technical Specifications
1. Structure & Working Principle
Core Components: Sun gear, planet gears, ring gear, and floating planetary carrier
Material: 20CrMnTi alloy steel (HRC54-62 hardness)
Modular Design: 50-66% size reduction vs conventional reducers
2. Technical Features
| Parameter | Single Stage | Double Stage | Triple Stage |
|---|---|---|---|
| Efficiency | 97-98% | 94-96% | 91-94% |
| Speed Ratio | 2.8-12.5 | 14-160 | 180-2000 |
| Power Range | 1-1300 kW | ||
Key Advantages
≤85 dB(A) noise level
100,000+ hour service life
IoT-ready with real-time monitoring
3. Applications
Heavy Industry: Rolling mills, mine hoists
Precision Manufacturing: Robotics, CNC machines
Energy: Wind turbine gearboxes
4. Model Comparison
| Feature | NGW Series | Standard Gear Reducers |
|---|---|---|
| Size/Weight | 50-66% smaller | Standard |
| Noise Level | ≤85 dB(A) | ≥90 dB(A) |
5. Maintenance & Standards
Lubrication: N320/N460 oil, 500hr initial change
Compliance:
JB/T 8853-2001 (Cylindrical Gear Reducers)
GB/T 10095-2008 (Gear Accuracy)
6. Summary
The NGW series combines high efficiency (97-98%) with smart monitoring capabilities for modern industrial automation. Ideal for applications requiring precision control in heavy-load (-40℃~45℃) and low-noise environments.
| Model | Rated Torque (kN·m) | Ratio Range | Input Speed (rpm) | Efficiency (%) | Weight (kg) | Backlash (arcmin) |
|---|---|---|---|---|---|---|
| NGW21 | 1.5 | 4-12.5 | 1500 | ≥98 | 28 | ≤8 |
| NGW42 | 6.3 | 5-25 | 1500 | ≥97 | 85 | ≤10 |
| NGW71 | 25 | 6.3-31.5 | 1500 | ≥96 | 220 | ≤12 |
Technical Specifications:
Gear System: 2-stage helical planetary design
Materials:
Gears: 20CrMnTi carburized steel (HRC 58-62)
Housing: HT250 gray cast iron
Lubrication: Oil bath lubrication (ISO VG150-320)
Protection Class: IP55 standard
Mounting: Foot-mounted (IMB5) or flange-mounted (IMB35)
Temperature Range: -20℃ to +80℃
Standards: Complies with JB/T 9043.1-2015
Key Features:
Compact coaxial design with high torque density
Low-noise operation (≤75dB(A))
Radial load capacity up to 18% of rated torque
Axial load capacity up to 10% of rated torque
* All values based on SF=1.0 and continuous operation
** Optional configurations: cooling fans, oil heaters, stainless steel hardware
