B3, B6, B7, B8, V5, V6 - all standard orientations supported.

Torque arm, protective cover, single and double output shaft options.

Best EP-NRV110 Aluminium Worm Gearbox Australia Manufacturers, suppliers, factory

Name: Best EP-NRV110 Aluminium Worm Gearbox Australia Manufacturers, suppliers, factory - Worm Reducers
SKU: 7452cc59a3d5

Beschreibung

EP-NRV110 Solid Shaft Aluminium Worm Gearbox – Product Overview

The EP-NRV110 is the large industrial NRV solid-shaft worm gearbox for mining, heavy process, and large agitator applications where hydraulic motor compatibility is essential. With a solid Ø28j6 input shaft instead of an IEC motor flange, the NRV110 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. 38 kg with 110 mm centre distance and Ø42h6 output shaft, it delivers up to approx. 650 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 underground mining conveyor drives, heavy industrial agitators, and off-grid heavy equipment where the solid 28 mm input shaft couples to hydraulic motors powered by diesel power packs.

EP-NRV110 Technical Specifications

Parameter	Value
Model	EP-NRV110
Centre Distance	110 mm
Weight (without motor)	approx. 38 kg
Input Shaft	Ø28j6 (solid)
Output Shaft	Ø42h6
Output Shaft Length B	80 mm
Output G1	155 mm
Output Overall L	249 mm
Output Thread	M16
Output Keyway b1	12 mm
Output Keyway t1	45 mm
Ratio Range	7.5-100:1
Input Power Range	1.1-9.2 kW
Maximales Drehmoment	approx. 650 Nm
Housing Material	Die-cast aluminium alloy, painted finish
Worm Wheel	Tin-bronze alloy
Worm Shaft	Case-hardened steel, precision ground
Schmierung	Synthetic oil, lifetime fill
IP Rating	IP54
Montagepositionen	B3, B6, B7, B8, V5, V6

NRV110 Performance Data (n1 = 1400 rpm)

Verhältnis	n2 (rpm)	Torque (Nm)	Input (kW)
7.5	186.7	Est. 350	Est. 2.5
15	93.3	Est. 480	Est. 1.6
30	46.7	Est. 600	Est. 1.0
50	28	Est. 560	Est. 0.8
100	14	Est. 470	Est. 0.5

✓ Core Features and Benefits

⚙ Solid Input Shaft – Universal Motor Coupling
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.

⚖ 28 mm j6 Input – Hydraulic Motor Compatible
The solid 28 mm input shaft couples to hydraulic motors powered by diesel-hydraulic power packs. This is the standard drive solution for underground mining where mains power is not available at the working face.

❄ 42 mm h6 Output – Large Industrial Standard
Matches heavy industrial coupling bore sizes for mining conveyors, large agitators, and heavy process machinery. 38 kg is significantly lighter than 50+ kg cast iron equivalents.

⚒ Aluminium Thermal Efficiency and Corrosion Resistance
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

⚒ Underground Mining Conveyors
Heavy head drives for ore and mineral conveyors at underground mine faces. Solid shaft to hydraulic motor via diesel power pack – the only option where mains power is unavailable.

⚙ Large Industrial Agitators
Industrial mixing drives for chemical reactors and water treatment vessels. 42 mm output for heavy agitator shaft couplings. VFD motor coupling for variable-speed mixing control.

⚖ Off-Grid and Remote Site Equipment
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.

⚛ Servo and Stepper Precision Positioning
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 NRV110 when you need universal motor coupling flexibility – servo, stepper, DC, hydraulic, or PTO. If your application uses only standard IEC AC motors, the NMRV110 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 NRV110 operate with hydraulic motors in underground mining?

Yes – this is the primary application advantage. The solid 28 mm input shaft couples to hydraulic motors powered by diesel-hydraulic power packs – the standard drive solution for underground mining operations without mains power.

▶ How does the NRV110 compare to the NMRV110?

Same 110 mm centre distance, 42 mm output, and identical torque ratings at approximately 650 Nm. NRV110 has a solid 28 mm input for hydraulic, servo, and non-IEC motors. NMRV110 has an IEC flange for standard AC motors only.

▶ What is the maximum output torque?

Approximately 650 Nm at medium ratios with 5.5 kW or higher input. The NRV110 shares identical output performance with the NMRV110 – refer to the NMRV110 performance tables for detailed ratings.

▶ What mounting positions does the EP-NRV110 support?

B3 horizontal, B6 wall-mount left, B7 wall-mount right, B8 inverted, V5 vertical output up, V6 vertical output down. Oil level must be adjusted per mounting position – refer to the NRV mounting position chart in the product manual.

▶ What accessories are available for the EP-NRV110?

Torque arm for shaft-mount hollow bore installations, protective cover for input shaft bore protection, single and double output shaft configurations. All NRV accessories are size-matched to the NRV110 frame dimensions.

★ Customer Reviews

★★★★★

“NRV110 on underground coal conveyors with hydraulic motor. Our mine has no mains power at the face. 38 kg means two workers can carry it to position.”

Bruce H. – Hunter Valley Mining (Australia)

★★★★★

“NRV110 on 6 process agitators with VFD motor for variable-speed mixing. 30% lighter than old cast iron units. Structural engineer approved lighter mounting frames as a result.”

Lisa M. – ProcessTech Inc. (United States)

★★★★★

“NRV110 on our renewable energy test rig with precision servo motor. Solid shaft input with no IEC flange restriction enables our custom drive controller to work perfectly.”

Paulo C. – SolEnergy Brasil (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. ⚙ NMRV110: IEC motor flange version of the same 110 mm frame size.