Description
NMRV Brake Gear Motor — Three-phase motor with DC electromagnetic brake integrated with NMRV gearbox
Engineered for packaging machinery and labeling systems, the NMRV Brake Gear Motor from Ever-power Australia Worm Reducer Co., Ltd. delivers dependable speed reduction with integrated motor and gearbox as a single compact drive unit. Trusted by OEMs and system integrators across 60+ countries.
📜 NMRV Brake Gear Motor Product Overview
The NMRV Brake Gear Motor is a precision-built worm gear speed reducer designed for reliable right-angle power transmission in demanding industrial environments. Featuring integrated motor and gearbox as a single compact drive unit, this unit transforms high-speed motor rotation into controlled, high-torque output suitable for packaging machinery and labeling systems. The worm gear mechanism provides inherently smooth, low-vibration operation with significantly lower noise levels than spur or helical gear alternatives — typically below 65 dB(A) at rated load.
All gear components are manufactured under ISO 9001-certified quality management. The worm wheel is machined from wear-resistant bronze alloy, while the worm shaft undergoes carburizing and precision grinding to achieve a hardened tooth surface. This material combination ensures gradual, predictable wear characteristics rather than sudden failure, giving maintenance teams confidence in planning scheduled interventions.
✅ Key Features & Benefits
Delivers exceptional output torque relative to its compact size, reducing overall machine footprint and structural loading.
Worm gear meshing produces significantly lower noise than spur or helical alternatives — ideal for noise-sensitive environments.
Multiple standard mounting positions allow installation in any orientation without adapter kits or custom brackets.
Premium bronze worm wheel and hardened steel worm shaft deliver consistent performance exceeding 20,000 operating hours.
🔧 Technical Specifications
| Parameter | Value |
|---|---|
| Configuration | NMRV + DC Brake Motor |
| Motor Type | Three-phase / Single-phase / Brake |
| Voltage | 220V/380V/415V (customizable) |
| Frequency | 50Hz / 60Hz |
| Insulation Class | Class F |
| Motor Protection | IP55 |
| Reducer Type | NMRV Aluminum Alloy |
| Ratio Range | 5:1 – 100:1 |
| Mounting | B3, B5, B6, B7, B8, V5, V6 |
| Wiring | Terminal box, CCW/CW selectable |
🏭 Application Industries
Web presses, die cutters, and paper-converting machinery requiring precise speed control.
Tank agitators, bottling conveyors, and pasteurizer drives in food-safe environments.
Vibrating screen drives, belt feeders, and crusher auxiliaries in harsh dusty conditions.
📚 Selection & Sizing Guide
Proper sizing prevents premature failure. Follow this simplified procedure to confirm the NMRV Brake Gear Motor suits your application:
Step 1: Calculate required output speed: n₂ = Motor Speed / Ratio
Step 2: Determine required output torque from your machine design.
Step 3: Apply service factor (fs) based on duty cycle, load type, and daily running hours.
Step 4: Verify M₂ × fs ≤ rated torque from the specification table above.
Step 5: Calculate motor power: P₁ = (M₂ × fs × n₂) / (9550 × η)
💡 Need help? Our engineering team provides free sizing assistance — contact us with your torque, speed, and application details.
🛠 Installation & Maintenance
☑ Mount on a flat, rigid surface with all foundation bolts properly torqued. ☑ Align motor and gearbox shafts within 0.5° angular and 0.05 mm parallel tolerance. ☑ Fill lubricant to the oil-gauge center line before first operation. ☑ Remove the breather vent plug to allow air circulation. ☑ Perform the first oil change after 100 operating hours, then every 2,500 hours thereafter. ☑ Maximum allowable oil temperature is 95°C — if exceeded, check load, alignment, and oil condition.
💧 Lubrication
Use synthetic PAG oil (ISO VG 460) for ambient temperatures 15–40°C, or ISO VG 320 for cooler environments. Recommended brands: Shell Tivela S, Mobil Glygoyle, or Esso Spartan EP series. Mineral oils are acceptable but result in higher operating temperatures and shorter change intervals. Fill to the sight-gauge center line.
🚧 Troubleshooting
| Symptom | Cause | Action |
|---|---|---|
| 🌡 Overheating | Overload / misalignment / low oil | Reduce load; re-align; check oil level |
| 📳 Vibration | Loose bolts / worn bearings | Re-torque fasteners; replace bearings |
| 🔈 Noise | Poor mesh / insufficient oil | Inspect gears; refill lubricant |
| 💧 Leakage | Worn seals / loose drain plug | Replace seals; tighten with sealant |
❓ Frequently Asked Questions
What reduction ratios are available?
This model offers a comprehensive range of standard ratios. Lower ratios use multi-start worms for higher efficiency, while higher ratios employ single-start worms enabling self-locking. Custom ratios can be produced for OEM projects upon request.
Can it work with both IEC and NEMA motors?
Yes. The input flange accommodates IEC metric motor frames as well as NEMA imperial frames, providing global motor-sourcing flexibility without adapter plates.
Is this gearbox self-locking?
Self-locking depends on the ratio. Higher ratios provide reliable static self-locking. For safety-critical lifting, we recommend adding an external brake regardless of ratio.
What lubricant is recommended?
Synthetic PAG oil ISO VG 460 for ambient 15-40°C, or ISO VG 320 for cooler environments. Mineral oils are acceptable but run hotter. Fill to the sight-gauge center line; first change at 100 hours, then every 2,500 hours.
What customization options are available?
Ever-power offers custom shaft diameters, non-standard keyways, custom paint colors, double output shafts, food-grade lubrication, high-temp seals, and private-label branding for OEM partners.
⭐ Customer Feedback
⭐⭐⭐⭐⭐
“Switching to Ever-power saved us 35% on unit costs with no performance loss. True drop-in replacement.”
— Maria L., Procurement Director, Brazil 🇧🇷
⭐⭐⭐⭐⭐
“Performs flawlessly in our 50°C ambient warehouse. Heat dissipation on the aluminum models is superb.”
— Ahmed R., Operations Manager, UAE 🇦🇪
Need This Gearbox for Your Project?
Tell us your torque, speed, and application — we’ll recommend the optimal configuration and deliver a detailed quotation.
Ever-power Australia Worm Reducer Co., Ltd. • About Us
