Description
EP-NRV063 Solid Shaft Aluminium Worm Gearbox – Product Overview
The EP-NRV063 is the medium-duty NRV solid-shaft worm gearbox for construction equipment, mining conveyors, and heavy automation, offering combustion engine PTO compatibility. With a solid Ø19j6 input shaft instead of an IEC motor flange, the NRV063 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. 7 kg with 63 mm centre distance and Ø25h6 output shaft, it delivers up to 160 Nm output torque across ratios 7.5-100:1. 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 construction hoist mechanisms, mining conveyor drives, and portable equipment where the solid 19 mm input shaft enables coupling to petrol engine PTO and diesel-hydraulic motors.
EP-NRV063 Technical Specifications
| Параметр | Value |
|---|---|
| Model | EP-NRV063 |
| Centre Distance | 63 mm |
| Weight (without motor) | approx. 7 kg |
| Input Shaft | Ø19j6 (solid) |
| Output Shaft | Ø25h6 |
| Output Shaft Length B | 50 mm |
| Output G1 | 112 mm |
| Output Overall L | 173 mm |
| Output Thread | M10 |
| Output Keyway b1 | 8 mm |
| Output Keyway t1 | 28 mm |
| Ratio Range | 7.5-100:1 |
| Input Power Range | 0.25-1.1 kW |
| Max Output Torque | 160 Nm |
| Корпус материалы | Die-cast aluminium alloy, painted finish |
| Worm Wheel | Tin-bronze alloy |
| Worm Shaft | Case-hardened steel, precision ground |
| Lubrication | Synthetic oil, lifetime fill |
| IP Rating | IP54 |
| Mounting Positions | B3, B6, B7, B8, V5, V6 |
NRV063 Performance Data (n1 = 1400 rpm)
| Ratio | n2 (rpm) | Torque (Nm) | Input (kW) |
|---|---|---|---|
| 7.5 | 186.7 | 128 | 2.8 |
| 10 | 140 | 130 | 2.2 |
| 15 | 93.3 | 140 | 1.6 |
| 20 | 70 | 135 | 1.2 |
| 30 | 46.7 | 160 | 1.1 |
| 50 | 28 | 135 | 0.6 |
| 100 | 14 | 118 | 0.3 |
✓ 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.
The 19 mm solid input shaft accepts standard couplings for motors up to 1.1 kW including combustion engine PTO drives. This is a capability that IEC-flange-only NMRV reducers cannot offer.
Handles multi-lane conveyors, construction hoists, and mining equipment at torques exceeding the NRV050. At 7 kg it remains manageable for site installation without overhead crane.
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
Portable hoist mechanisms, concrete equipment drives, and site conveyor heads. Solid shaft couples to petrol or diesel engine PTO via standard couplings – not restricted to electric motors.
Head and tail drives for light-medium ore and aggregate conveyors at up to 160 Nm. 7 kg weight is manageable for underground installation and transport.
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 NRV063 when you need universal motor coupling flexibility – servo, stepper, DC, hydraulic, or PTO. If your application uses only standard IEC AC motors, the NMRV063 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
▶ Can the NRV063 couple to a petrol or diesel engine?
▶ How does the NRV063 compare to the NMRV063?
▶ What is the maximum output torque?
▶ What mounting positions does the EP-NRV063 support?
▶ What accessories are available for the EP-NRV063?
★ Customer Reviews
“NRV063 on portable construction hoists coupled to petrol engine PTO. 160 Nm handles the lifting load. 7 kg for easy site transport between locations.”
Craig M. – Desert Mining Services (Australia)
“NRV063 on our palletiser infeed with servo motor for precise positioning. Cast iron could not offer the motor flexibility we needed for our automation system.”
Sophie L. – EuroPack GmbH (Germany)
“5 units on our water treatment screw conveyors with VFD motor coupling. Running 24 hours a day, 7 days a week for 18 months with zero issues.”
Raj P. – AquaTech Solutions Pvt (India)
⚙ 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. ⚙ NMRV063: IEC motor flange version of the same 63 mm frame size.
Get Your EP-NRV063 Quote Today
Contact Ever Power for pricing, custom shafts, and OEM quantities. Email: [email protected]
