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RV30,RV40,RV50,RV63,RV75,RV90,RV110,RV130,RV150
HUAKE
The NMRV050 Aluminum Worm Gear Box is a compact and efficient right-angle speed reducer engineered for light-to-medium duty power transmission. Designed with a high-strength aluminum alloy housing and precision-machined bronze worm gear, it offers exceptional durability, smooth torque delivery, and corrosion resistance in a lightweight form.
This model features a 50 mm center distance and supports various mounting configurations (AS, BS, VS, PS positions), making it highly adaptable for conveyor systems, packaging equipment, automation lines, and motion-control setups. With a wide gear ratio range from 5:1 to 100:1, the NMRV050 provides both speed reduction and high torque output with minimal noise and heat generation.
| Parameter | Description |
|---|---|
| Model | NMRV 050 |
| Gear Type | Worm and worm wheel (right-angle transmission) |
| Housing Material | High-pressure aluminum alloy die-cast (Al6061) |
| Center Distance | 50 mm |
| Gear Ratio Range | i = 5 : 1 ~ 100 : 1 |
| Input Power Range | 0.09 kW – 0.75 kW |
| Output Torque | Up to 45 N·m (depending on ratio) |
| Lubrication | Synthetic gear oil (ISO VG 220 or equivalent) |
| Mounting Positions | AS1 / AS2 / BS1 / BS2 / VS1 / VS2 / PS1 / PS2 |
| Output Types | Hollow shaft Ø 25 mm / solid shaft option |
| Flange Types | F1 / F2 IEC standard flange (B5 / B14 compatible) |
| Noise Level | ≤ 50 dB under nominal load |
| Working Temperature | –15 °C ~ +50 °C |
| Protection Class | IP55 (standard), optional IP65 |
The bronze worm wheel and hardened steel worm shaft are ground to precise tooth geometry, ensuring smooth meshing, high efficiency, and long service life even under continuous load.
Pressure-cast aluminum alloy body offers excellent rigidity while reducing total weight by 30–40 % compared to cast-iron boxes, ideal for environments requiring easy installation or mobility.
Supports 8 standard mounting orientations (AS/BS/VS/PS) and 2 flange interfaces (F1/F2), allowing installation in confined spaces or multi-directional equipment layouts.
Optimized tooth contact and precision bearings reduce friction losses and vibration, providing quiet operation (≤ 50 dB) and transmission efficiency up to 90 %.
Pre-lubricated and sealed for life; the unit requires minimal maintenance and is suitable for continuous 24 h operation. Oil drain and vent plugs are strategically positioned for easy service.
Conveyor Systems — Smooth speed control and stable torque for belt drives and packaging lines.
Food & Pharmaceutical Machinery — Clean appearance and anti-corrosion housing fit for hygienic environments.
Automation & Robotics — Compact size and high torque density for positioning or rotary modules.
Gate / Lifting Mechanisms — Built-in self-locking capability prevents back-driving on vertical loads.
Textile / Printing / Packaging Machines — Stable operation under continuous medium-duty load.
Q1. What does “NMRV050” mean?
The “50” refers to the center distance (50 mm) between the worm and worm wheel shafts. It defines the physical size and torque capacity of the gear box.
Q2. Is the NMRV050 compatible with IEC motors?
Yes. It can directly connect with IEC B5 or B14 flange motors (63 ~ 80 frame sizes) via standard adapter plates.
Q3. What is the recommended lubricant?
Use synthetic worm gear oil (ISO VG 220 or 320) for ambient temperatures –15 ~ +50 °C. The unit is pre-filled for normal duty operation.
Q4. Can it be mounted vertically?
Yes. The NMRV050 supports all installation orientations (AS, BS, VS, PS). Ensure proper venting and oil level adjustment when mounted vertically.
Q5. What is the self-locking feature?
Due to the worm-to-wheel geometry, reverse motion is naturally restricted, preventing back-driving — useful for lifting and position-holding systems.
The NMRV050 Aluminum Worm Gear Box is a compact and efficient right-angle speed reducer engineered for light-to-medium duty power transmission. Designed with a high-strength aluminum alloy housing and precision-machined bronze worm gear, it offers exceptional durability, smooth torque delivery, and corrosion resistance in a lightweight form.
This model features a 50 mm center distance and supports various mounting configurations (AS, BS, VS, PS positions), making it highly adaptable for conveyor systems, packaging equipment, automation lines, and motion-control setups. With a wide gear ratio range from 5:1 to 100:1, the NMRV050 provides both speed reduction and high torque output with minimal noise and heat generation.
| Parameter | Description |
|---|---|
| Model | NMRV 050 |
| Gear Type | Worm and worm wheel (right-angle transmission) |
| Housing Material | High-pressure aluminum alloy die-cast (Al6061) |
| Center Distance | 50 mm |
| Gear Ratio Range | i = 5 : 1 ~ 100 : 1 |
| Input Power Range | 0.09 kW – 0.75 kW |
| Output Torque | Up to 45 N·m (depending on ratio) |
| Lubrication | Synthetic gear oil (ISO VG 220 or equivalent) |
| Mounting Positions | AS1 / AS2 / BS1 / BS2 / VS1 / VS2 / PS1 / PS2 |
| Output Types | Hollow shaft Ø 25 mm / solid shaft option |
| Flange Types | F1 / F2 IEC standard flange (B5 / B14 compatible) |
| Noise Level | ≤ 50 dB under nominal load |
| Working Temperature | –15 °C ~ +50 °C |
| Protection Class | IP55 (standard), optional IP65 |
The bronze worm wheel and hardened steel worm shaft are ground to precise tooth geometry, ensuring smooth meshing, high efficiency, and long service life even under continuous load.
Pressure-cast aluminum alloy body offers excellent rigidity while reducing total weight by 30–40 % compared to cast-iron boxes, ideal for environments requiring easy installation or mobility.
Supports 8 standard mounting orientations (AS/BS/VS/PS) and 2 flange interfaces (F1/F2), allowing installation in confined spaces or multi-directional equipment layouts.
Optimized tooth contact and precision bearings reduce friction losses and vibration, providing quiet operation (≤ 50 dB) and transmission efficiency up to 90 %.
Pre-lubricated and sealed for life; the unit requires minimal maintenance and is suitable for continuous 24 h operation. Oil drain and vent plugs are strategically positioned for easy service.
Conveyor Systems — Smooth speed control and stable torque for belt drives and packaging lines.
Food & Pharmaceutical Machinery — Clean appearance and anti-corrosion housing fit for hygienic environments.
Automation & Robotics — Compact size and high torque density for positioning or rotary modules.
Gate / Lifting Mechanisms — Built-in self-locking capability prevents back-driving on vertical loads.
Textile / Printing / Packaging Machines — Stable operation under continuous medium-duty load.
Q1. What does “NMRV050” mean?
The “50” refers to the center distance (50 mm) between the worm and worm wheel shafts. It defines the physical size and torque capacity of the gear box.
Q2. Is the NMRV050 compatible with IEC motors?
Yes. It can directly connect with IEC B5 or B14 flange motors (63 ~ 80 frame sizes) via standard adapter plates.
Q3. What is the recommended lubricant?
Use synthetic worm gear oil (ISO VG 220 or 320) for ambient temperatures –15 ~ +50 °C. The unit is pre-filled for normal duty operation.
Q4. Can it be mounted vertically?
Yes. The NMRV050 supports all installation orientations (AS, BS, VS, PS). Ensure proper venting and oil level adjustment when mounted vertically.
Q5. What is the self-locking feature?
Due to the worm-to-wheel geometry, reverse motion is naturally restricted, preventing back-driving — useful for lifting and position-holding systems.
