NAZD Reducer
- Transmission level : One-stage planetary transmission + fixed-axis cylindrical gear expansion (Z type), compact structure.
- Connection method : Flange connection (F type) is convenient for direct connection with equipment.
- Applicable power range : Small and medium power scenarios, suitable for motors from 1kW to thousands of kilowatts.
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Structural features :
Made of hardened alloy steel, gear precision is 6-7, life span is ≥10 years.
- INTRODUCTION
- SPECIFICATION
- RELATED
- INQUIRY
NAZD Series Planetary Gear Reducer Technical Specifications
1. Overview
The NAZD series involute planetary gear reducer, derived from NGW technology, delivers exceptional performance for heavy industries including metallurgy and mining. Designed for continuous heavy-load operation (-40℃~45℃), it combines modular design with high torque density (76 N·m/kg).
2. Structural Design
Core Components
Gears: 20CrMnTi alloy steel (HRC60±2) with carburizing & quenching
Planetary Carrier: Tooth-floating mechanism for load distribution
Housing: IP55-rated cast iron/welded steel
3. Technical Highlights
| Parameter | Value |
|---|---|
| Transmission Efficiency | ≥95% (single-stage) |
| Torque Range | 3-22,500 N·m |
| Speed Ratio | 2.8-25,000 |
| Noise Level | ≤85 dB(A) |
4. Model Comparison
| Feature | NAZD Series | NGW Series |
|---|---|---|
| Speed Ratio | 2.8-25,000 | 3-12 (single-stage) |
| Weight Efficiency | 40% lighter | Standard |
| Torque Density | 76 N·m/kg | 45 N·m/kg |
5. Technical Parameters
| Model | Power (kW) | Torque (N·m) | Input Speed (rpm) | Ratio |
|---|---|---|---|---|
| NAZD710 | 0.18-200 | 3-22,500 | ≤1500 | 2.8-160 |
| NBZD250-71 | - | - | 600-1500 | 71+ |
6. Installation & Maintenance
Alignment: ≤0.1mm shaft parallelism tolerance
Lubrication: N320/N460 gear oil, 500hr initial change
Monitoring: Bearing temp ≤85℃, vibration ≤4.5mm/s
7. Compliance Standards
JB/T 8853-2001 (Cylindrical Gear Reducers)
AQ1032-2007 (Mine Hoist Safety Code)
8. Summary
The NAZD series excels in heavy-impact applications with its modular design and 100,000+ hour service life. Critical selection factors include torque requirements (up to 22.5kN·m) and environmental conditions. Proper maintenance ensures optimal performance in mining/metallurgy operations.
| Model | Rated Torque (kN·m) | Ratio Range | Input Speed (rpm) | Efficiency (%) | Backlash (arcmin) | Weight (kg) | Service Factor |
|---|---|---|---|---|---|---|---|
| NAZD-560 | 150 | 25-315 | 3000 | ≥96 | ≤5 | 980 | 1.5 |
| NAZD-850 | 320 | 20-250 | 2800 | ≥95 | ≤6 | 2450 | 1.4 |
| NAZD-1200 | 500 | 16-200 | 2400 | ≥94 | ≤8 | 5200 | 1.35 |
Technical Specifications:
Gear System: 3-stage helical planetary design with integrated carrier
Materials:
Sun/Planet Gears: 18CrNiMo7-6 case-hardened steel (HRC 60-62)
Ring Gear: 42CrMo4 nitrided steel
Housing: EN-GJS-500-7 nodular cast iron
Lubrication: Splash lubrication system (ISO VG460)
Protection Class: IP66 with triple labyrinth seals
Thermal Capacity: 55kW continuous power at 40℃ ambient
Mounting: Torque arm & flange mounting (IMA/IMB standards)
Certifications: Complies with ISO 6336 & AGMA 6123-B06
* All values based on 24/7 operation with uniform loading
** Backlash values apply to standard precision class P1
† Optional configurations available: corrosion-resistant coating, heating/cooling jackets
