NMRV Worm Gearbox 30‑150 Series: Industrial Speed Reducer Transmission Gear For Mechanical Drive
Wuhan Xinlaifu Hydraulic Equipment Co., Ltd. is one of the leading manufacturers and suppliers of nmrv worm gearbox 30‑150 series: industrial speed reducer transmission gear for mechanical drive in China. With abundant experience, we warmly welcome you to buy high quality customized products at competitive price from our factory. Also, OEM&ODM service is available.
Technical specifications
| Item | Specification |
| Part Number | NMRV30, NMRV40, NMRV50, NMRV63, NMRV75, NMRV90, NMRV110, NMRV130, NMRV150 |
| Product Type | NMRV Series Worm Gear Speed Reducer / Transmission Gearbox |
| Applicable Machine | Industrial machinery, conveyor systems, packaging equipment, agricultural machinery, automation equipment, lifting equipment |
| Brand Reference | NMRV Series Worm Gearbox, Industrial Standard Worm Speed Reducer Replacement |
| Application | Power transmission and speed reduction for industrial machinery, automation systems, conveyor lines, and mechanical drive systems |
| Gear Structure | Single-stage worm and worm gear transmission, double external gear construction |
| Material | Housing: Aluminum Alloy; Worm Gear: Alloy Steel; Worm: 40Cr Steel |
| Output Torque | 10~2000 Nm (varies by model: NMRV30 ~10Nm, NMRV150 ~2000Nm) |
| Working Pressure | Not applicable (mechanical transmission, non-hydraulic) |
| Installation Form | Flange mount, foot mount, universal multi-position mounting options |
| Working Condition | For industrial transmission oil media, indoor/outdoor industrial working environment, continuous duty operation |
| Sealing Type | Standard oil seal, optional improved shaft seal available |
| Weight | 0.5~150 kg (varies by model: NMRV30 ~0.5kg, NMRV150 ~150kg) |
| Remark | Reliable drop-in replacement, stable speed reduction, low noise, high efficiency, reduce downtime for industrial equipment repair & fleet maintenance |
Product Overview
The NMRV series worm gearbox covers complete sizes NMRV30,40,50,63,75,90,110,130,150, serving as a compact industrial speed reducer for general mechanical transmission. Designed for steady torque output with multi‑position mounting flexibility, this transmission gear unit fits a wide range of industrial drive scenarios. Factory‑direct supply supports OEM and customized configurations. It acts as a reliable drop‑in unit for equipment retrofitting and new‑build machinery, helping global buyers cut equipment downtime in industrial production lines.
Features and Advantages
Features
- Full size coverage: NMRV30, NMRV40, NMRV50, NMRV63, NMRV75, NMRV90, NMRV110, NMRV130, NMRV150
- Compact single‑stage worm gear transmission structure
- Multi‑position flexible mounting for diverse installation demands
- Standard oil seal structure, optional upgraded shaft seal available
- Light‑weight aluminum alloy housing
- Modular design supports drop‑in replacement
- Available for OEM and custom configuration
Advantages
- Stable torque output for industrial mechanical transmission
- Low‑noise smooth operation under continuous working conditions
- High reliability to reduce equipment downtime
- Cost‑effective factory‑direct supply for global buyers
- Wide compatibility for various industrial machinery drives
- Easy assembly and maintenance for field repair & fleet maintenance
Typical applications
The NMRV 30-150 series worm gear speed reducer features compact structure, stable transmission, low noise and flexible installation, making it a universal transmission gear unit for almost all light and medium-duty industrial machinery. Widely adopted in global manufacturing and automation scenarios, this worm gearbox delivers reliable speed reduction and torque conversion for continuous industrial operation.
- Automation & Conveyor Systems – Ideal for automated production lines, belt conveyors, material handling and logistics transmission equipment, ensuring stable and precise power delivery
- Packaging & Printing Machinery – Perfect for labeling machines, filling equipment, wrapping machines and printing devices, supporting low-vibration and high-precision transmission work
- Food & Pharmaceutical Equipment – Applicable for food processing machinery, pharmaceutical production lines and hygienic processing equipment with low-noise and low-maintenance performance
- Textile & Garment Machinery – Suitable for textile looms, garment processing equipment and spinning machinery, adapting to long-hour continuous working conditions
- Construction & Agricultural Machinery – Used for small mixers, lifting equipment, agricultural transmission devices and construction auxiliary machinery
- General Industrial Equipment – Widely applied in chemical, plastic, mining, water treatment and light industrial machinery, serving as standard replacement transmission gearbox
FAQ
Q: What is an NMRV worm gearbox used for?
A: NMRV 30-150 series worm gearbox is a universal industrial speed reducer designed for mechanical transmission and torque conversion. It is widely used in automation conveyor systems, packaging machinery, food pharmaceutical equipment, textile machinery, agricultural and construction auxiliary machinery for stable and low-noise power transmission.
Q: What sizes does your NMRV speed reducer offer?
A: We provide full complete series sizes of NMRV worm gear speed reducer, including NMRV30, NMRV40, NMRV50, NMRV63, NMRV75, NMRV90, NMRV110, NMRV130 and NMRV150, covering all light and medium-duty industrial transmission needs.
Q: Are NMRV worm gearboxes suitable for continuous operation?
A: Yes. Our NMRV 30-150 transmission gear units feature stable transmission performance, low vibration and durable structure, fully adaptable to long-hour continuous working conditions for production lines and automated machinery.
Q: What are the main advantages of NMRV series gear reducers?
A: NMRV worm gear speed reducer comes with compact aluminum alloy housing, flexible multi-position installation, low noise, low maintenance and high transmission stability. It serves as a perfect standard replacement gearbox for general industrial machinery.
Q: Can NMRV worm gearboxes be used for conveyor and automation systems?
A: Absolutely. The NMRV 30-150 series is the ideal transmission gear unit for automated production lines, belt conveyors and material handling equipment, delivering precise and stable power transmission for industrial automation scenarios.
Q: Is the NMRV speed reducer compatible with packaging and food machinery?
A: Yes. Featuring low noise, low vibration and low-maintenance performance, our NMRV worm gear reducer is perfectly applicable for packaging, filling, labeling, printing, food processing and pharmaceutical hygienic equipment.
Q: Do you support OEM and customized specifications for NMRV gearboxes?
A: We provide factory-direct OEM and customized services for all NMRV30-150 worm gear speed reducers. We can customize mounting methods, transmission ratios and shaft configurations to fit different industrial machinery projects.
Q: Are NMRV worm gearboxes cost-effective for industrial replacement?
A: Definitely. The NMRV series transmission gearbox has a modular and universal design, which allows direct drop-in replacement for most standard industrial machinery. It effectively reduces equipment downtime and overall procurement costs for global industrial buyers.
Model Displacement
General Technical Data
| Parameter | Technical Data |
|---|---|
| Product Series | NMRV30‑40‑50‑63‑75‑90‑110‑130‑150 Single‑stage Worm Gear Reducer |
| Transmission Type | 90° right‑angle worm‑wheel & worm shaft transmission |
| Standard Reduction Ratio(i) | 7.5, 10, 15, 20, 25, 30, 40, 50, 60, 80, 100 |
| Max. Permissible Input Speed | 1500 rpm (continuous duty); 1800 rpm intermittent |
| Recommended Input Speed | ≤1400 rpm for long‑time continuous operation |
| Mounting Positions | B3, B6, B7, B8, V5, V6 (multi‑orientation universal installation) |
| Housing Material | NMRV30‑90: Die‑cast Aluminum Alloy; NMRV110‑150: Grey Cast Iron |
| Worm Shaft Material | Alloy Steel, surface quenched treatment |
| Worm Wheel Material | High‑strength tin‑bronze alloy |
| Lubrication | Oil‑bath lubrication; Synthetic industrial worm‑reducer gear oil |
| Ambient Operating Temperature | ‑15℃ ~ +40℃ |
| Duty Cycle | Continuous / Intermittent operation available |
| Shaft Seal | Nitrile rubber oil seal; FKM high‑temperature seal optional |
| IEC Motor Flange | Standard IEC B5 / B14 adaptor flange, custom adaptor available |
| Surface Finish | Silver anodized / painted, color customizable |
| Warranty | 12‑month against manufacturing defects |
Model‑by‑Model Performance Data
| Model | Max Input Power(kW) | Nominal Output Torque(Nm) | Output Shaft Dia(mm) | Approx Weight(kg) |
|---|---|---|---|---|
| NMRV30 | 0.18 | 18 | 14 | 1.6 |
| NMRV40 | 0.55 | 55 | 18 | 2.4 |
| NMRV50 | 0.75 | 120 | 25 | 4.0 |
| NMRV63 | 1.50 | 175 | 25 | 6.3 |
| NMRV75 | 3.00 | 280 | 28 | 9.2 |
| NMRV90 | 4.00 | 425 | 35 | 13.5 |
| NMRV110 | 5.50 | 585 | 42 | 34.0 |
| NMRV130 | 7.50 | 850 | 45 | 48.0 |
| NMRV150 | 15.00 | 1250 | 50 | 53.0 |
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