NMRV Worm Gearbox Manufacturer
A cost-effective NMRV Worm Gearbox. The standard for versatility. Lightweight aluminum alloy housing, compact design, and highly cost-effective. The perfect alternative to Motovario NMRV series .
Power
0.6 - 15 kW
Ratio
5,7.5,10,15,20,25,30,40,50,60,80,100
Size
RV30,40,50,63,75,90,110,130,150
Material
Aluminum / Cast Iron
Core Component Materials of NMRV Worm Gearbox
For the worm gear. We offer strictly selected bronze materials to match your specific duty cycle and budget.
Premium Choice
Material : Tin Bronze-CuSn10Pb1(10-1)
- Superior Wear Resistance: Best anti-scuffing properties.
- Low Friction: Runs cooler, extending seal and oil life.
- Ideal For: Heavy-duty, continuous operation (24/7).
Standard Choice
Material : Aluminum Bronze-CuAl10Fe3(9-4)
- High Strength: Harder than tin bronze.
- Cost-Effective: Economical solution for general applications.
- Ideal For: Intermittent operation, slow speed, or budget-sensitive projects.
Perfect Mating: All worm wheels are paired with 20CrMnTi Carburized Steel Shafts (Surface Hardness: 58-62 HRC), ground to ensure precise meshing and low noise.
Why Choose NMRV Worm Gearbox?
Why Switch to Our NMRV Series?
- Budget Friendly: The most economical solution for speed reduction. Ideal for food packaging, ceramics, and light conveyors.
- Aluminum Housing: Die-cast aluminum alloy housing (Sizes 025-090) ensures light weight and rust resistance.
- Universal Mounting: Can be mounted in any position without modifying oil quantity.
Available Configurations

NMRV Series
Standard ratio 1:5 to 1:100.

NMRV Series (for servo motor)
Squre input flange for servo motor.

NMRV-F Series
With an output flange.

NMRV-NMRV Series
Combination of two gearboxes for ultra-low speed (Ratio up to 3000).

NRV Series
Shaft input version.

NRV-VS Series
Double input shaft.

NMRV-VS Series
With both shaft input and flange input.

NRV-F Series
With shaft input and flange output.
One-Stop Service
Need a Complete Drive Solution?
Don’t waste time sourcing motors separately. We provide fully assembled Worm Geared Motors tailored to your specifications. From standard AC motors to specialized brake motors, we have them all.
- IEC Standard: 100% compatible with global standard motors (IEC Flange B5/B14).
- Motor Options: 3-Phase / 1-Phase, Brake Motor, Explosion-proof, or VFD compatible.
- Custom Voltage: 110V / 220V / 380V / 415V / 440V (50/60Hz) available.
Need Detailed Specs & Drawings ?
We provide free specifications and drawings of NMRV worm gearbox.
FAQ about NMRV Worm Gearbox
Q: What is the difference between NMRV and S Series?
A: NMRV is a pure worm gearbox using aluminum housing (mostly). It is cheaper, lighter, and suitable for light-duty applications. S Series is a Helical-Worm gearbox with cast iron housing, designed for heavier loads and higher efficiency.
Q: What is the delivery time for the NMRV worm gearbox?
A: For standard ratios and motors, we have stock and can ship within 7 days. For customized product, it takes about 15-25 days.
Q: What material do you use for the worm wheel?
A: We have high-quality Tin Bronze (10-1) for maximum durability and low noise. However, for cost-sensitive projects, we can also provide Aluminum Bronze(9-4) upon request.
Q: Why does the worm gearbox get hot?
A: It is normal for worm gears to generate heat due to friction. We can use high-quality bronze wheels to minimize friction. Please ensure the operating temperature stays under 80°C.
Request A Quote for NMRV Worm Gearbox
Send us your requirements or a photo of your existing nameplate. We will quote within 12 hours.
- Email: eric@cylreducer.com
- +86 18015838895
- No.1 xinxing Road, Changzhou City, Jiangsu Province, China