説明
EP-NRV040 Solid Shaft Aluminium Worm Gearbox – Product Overview
The EP-NRV040 is the mid-range NRV solid-shaft worm gearbox bridging light and medium-duty requirements, with the universal motor coupling that makes it ideal for field equipment and mobile machinery. With a solid Ø11j6 input shaft instead of an IEC motor flange, the NRV040 accepts any motor type via standard shaft coupling – servo motors, stepper motors, DC brushless, hydraulic motors, and even combustion engine PTO drives. This universal motor compatibility is the defining advantage of the NRV series over the IEC-flange-only NMRV series. At approx. 2.5 kg with 40 mm centre distance and Ø18h6 output shaft, it delivers up to 45 Nm output torque across ratios 5-100:1. The die-cast aluminium alloy housing provides corrosion resistance and thermal efficiency superior to cast iron while saving 30-50% in weight. Purpose-designed for agricultural feed dispensers, packaging conveyors, and mobile equipment where the solid input shaft enables coupling to PTO drives, 12/24V DC motors, and battery-powered drives.
EP-NRV040 Technical Specifications
| Parameter | Value |
|---|---|
| Model | EP-NRV040 |
| Centre Distance | 40 mm |
| Weight (without motor) | approx. 2.5 kg |
| Input Shaft | Ø11j6 (solid) |
| Output Shaft | Ø18h6 |
| Output Shaft Length B | 40 mm |
| Output G1 | 78 mm |
| Output Overall L | 128 mm |
| Output Thread | M6 |
| Output Keyway b1 | 6 mm |
| Output Keyway t1 | 20.5 mm |
| Ratio Range | 5-100:1 |
| Input Power Range | 0.09-0.55 kW |
| Max Output Torque | 45 Nm |
| Housing Material | Die-cast aluminium alloy, painted finish |
| ウォームホイール | Tin-bronze alloy |
| ウォームシャフト | Case-hardened steel, precision ground |
| Lubrication | Synthetic oil, lifetime fill |
| IP Rating | IP54 |
| Mounting Positions | B3, B6, B7, B8, V5, V6 |
NRV040 Performance Data (n1 = 1400 rpm)
| Ratio | n2 (rpm) | Torque (Nm) | Input (kW) |
|---|---|---|---|
| 5 | 280 | 34 | 1.1 |
| 10 | 140 | 40 | 0.7 |
| 20 | 70 | 39 | 0.4 |
| 30 | 46.7 | 45 | 0.3 |
| 50 | 28 | 39 | 0.2 |
| 80 | 17.5 | 33 | 0.1 |
| 100 | 14 | 29 | 0.1 |
✓ Core Features and Benefits
Unlike the IEC-flange NMRV series, the NRV solid input shaft couples to ANY motor type via standard shaft couplings – AC induction, DC brushless, servo, stepper, hydraulic, pneumatic, and combustion engine PTO drives.
Input shaft accepts standard couplings for motors from 0.09 to 0.55 kW. Couples to PTO drives, 12V and 24V DC motors, and battery-powered drives – not restricted to mains-powered IEC motors.
The most widely used shaft size in small Australian industrial drives. Standard sprockets, timing pulleys, and coupling hubs fit directly without custom machining or adaptor sleeves.
Die-cast aluminium housing dissipates heat 3x faster than cast iron for continuous duty at up to 40°C ambient. Factory coating resists humidity, washdown chemicals, and mild salt spray exposure.
⚙ Industry Applications
Feed dispensers, grain conveyor actuators, and irrigation valve drives. Solid shaft couples to PTO-driven motors and 12V or 24V DC motors for solar-powered and battery-operated field equipment.
Carton folding, labelling, and sorting conveyor drives at 30-100:1 ratios. Solid input enables servo motor coupling for positional accuracy in packaging automation.
Solid shaft input couples to diesel-hydraulic motors, engine PTO drives, and battery-powered DC motors – not restricted to mains-powered IEC motors. Essential for mining, agriculture, and construction in remote locations.
Direct servo or stepper motor coupling via bellows or beam couplings for position-control applications. Achieves angular accuracy levels that IEC-flange worm reducers cannot match.
⚙ Selection Guide and Mounting Positions
Choose the NRV040 when you need universal motor coupling flexibility – servo, stepper, DC, hydraulic, or PTO. If your application uses only standard IEC AC motors, the NMRV040 with direct flange mount may offer a simpler installation. Both NRV and NMRV share identical output shaft specifications, torque ratings, and housing dimensions at each size.
| Position | Code | Oil Note |
|---|---|---|
| Horizontal | B3 | Standard fill |
| Inverted | B8 | Increased fill |
| Vertical up | V5 | Reduced fill |
| Vertical down | V6 | Maximum fill |
| Wall-mount L/R | B6/B7 | Per chart |
⚖ NRV Aluminium vs Cast Iron Worm Gearbox Comparison
The NRV aluminium worm gearbox provides significant weight savings, better corrosion resistance, and superior heat dissipation compared to traditional cast iron reducers – with the added advantage of universal motor coupling via the solid input shaft.
| Feature | Aluminium NRV | Cast Iron |
|---|---|---|
| Weight | 30-50% lighter | Heavier |
| Corrosion | Excellent | Poor |
| Heat | Superior | Moderate |
| Cost | Lower | Higher |
| Input Shaft | Solid – universal coupling | Often fixed flange |
| Motor Compatibility | Any motor via coupling | Usually IEC only |
❓ Frequently Asked Questions
▶ How does the NRV040 compare to the NMRV040?
▶ What accessories fit the NRV040?
▶ What is the maximum output torque?
▶ What mounting positions does the EP-NRV040 support?
▶ What accessories are available for the EP-NRV040?
★ Customer Reviews
“NRV040 on our feed dispenser mechanisms coupled to 24V DC motor. Works great with our solar-powered farm equipment across remote Australian properties.”
Steve R. – Outback Agri Equipment (Australia)
“Standardised on NRV040 for our packaging line conveyors. Solid shaft lets us swap between AC, DC, and servo motors depending on the specific application requirements.”
Maria G. – TechPack Industries (New Zealand)
“NRV040 at 100:1 for our automated gate actuators. Solid input from DC worm motor gives smooth controlled slow operation for access control systems.”
Roberto F. – Automacao Vale Ltda (Brazil)
⚙ Related Products and Accessories
⚙ Compatible Motors: Any motor type via solid shaft coupling – servo, stepper, DC, hydraulic, PTO. ⚖ Torque Arms: Size-matched for shaft-mount installations. ⚙ Output Shafts: Single and double solid output shaft options. ⚖ Protective Covers: Input shaft bore dust protection. ⚙ NMRV040: IEC motor flange version of the same 40 mm frame size.
Get Your EP-NRV040 Quote Today
Contact Ever Power for pricing, custom shafts, and OEM quantities. Email: [email protected]
