Descrição
EP-NMRV040 Worm Gearbox — Mid-Range Torque for Industrial Automation & Textile Drives
Bridging the gap between the compact NMRV030 and the more powerful NMRV050, the EP-NMRV040 aluminum worm gearbox is the most specified unit in the NMRV series for general light industrial automation — particularly in textile, woodworking, and material handling sectors across Australia and Southeast Asia. At 2,3 kg, it is light enough to be hand-installed by a single technician yet produces output torques reaching 129 Nm with a 0.37 kW motor at its highest reduction ratio.
What distinguishes the NMRV040 within the series is its notably wider output flange configuration menu — four variants (FA, FB, FC, FD) — giving design engineers the freedom to match driven-machine bolt patterns without machining custom adaptors. Paired with both metric 18 mm and 0.750 in inch output shaft options, and accepting both IEC B14/B5 and NEMA 56C motor flanges, the NMRV040 is a genuinely universal worm gear reducer suited to global OEM programmes and local Australian replacement scenarios alike.
Especificações técnicas
| Parâmetro | Valor |
|---|---|
| Modelo | EP-NMRV040 |
| Peso (sem motor) | 2,3 kg |
| Relações de transmissão | 5, 7.5, 10, 15, 20, 25, 30, 40, 50, 60, 80, 100 |
| Potência máxima de entrada (P1) | Up to 0.55 kW |
| Torque máximo de saída (M2) | Up to 129 Nm |
| Faixa de velocidade de saída | 14 – 280 rpm (com entrada de 1400 rpm) |
| Carga radial máxima Fr2 | Up to 3,118 N |
| Material de construção | Liga de alumínio fundido |
| Material da roda sem-fim | Bronze fosforoso |
| Diâmetro do eixo de saída (métrico) | 18 mm H8 (19 mm on request) |
| Diâmetro do eixo de saída (polegadas) | 0,750 em (-0,0005) |
| Keyway (metric output) | 6 x 20.8 mm |
| Diâmetro do eixo de entrada (métrico) | 11 j6 mm |
| Diâmetro do furo de entrada (polegadas) | 0.6250 in |
| Flange de entrada NEMA | 56C |
| Opções de flange de saída | FA, FB, FC, FD |
| Opções de montagem | Pé (NMRV), Eixo (NRV), Flange |
| Classe de proteção | Padrão IP54 |
| Temperatura de operação | -10 a +40 graus Celsius |
Dimensional Data — Metric & Inch
| Dimensão | Sistema métrico (mm) | Polegada (pol.) |
|---|---|---|
| Altura central (A) | 78 | 3.07 |
| Distância do centro (I) | 40 | — |
| Diâmetro do eixo de saída. | 18 mm H8 | 0,750 polegadas |
| Diâmetro do eixo de entrada. | 11 j6 mm | 0,500 polegadas |
| Chaveta (saída) | 6 x 20.8 mm | 0,1875 x 1,5 polegadas |
| Comprimento do eixo de saída | 40 mm | — |
| Montagem com flange BK | 60 mm | 2.362 in |
Output Flange Options — FA, FB, FC, FD
| Flange | AA (mm) | AB (mm) | AC (mm) | AK Pilot dia. |
|---|---|---|---|---|
| FA | 75 | 67 | 110 | 60 mm +0.046 |
| FB | 75 | 97 | 110 | 60 mm +0.046 |
| FC | 115 | 80 | 140 | 95 mm +0.054 |
| FD | 100 | 58 | 120 | 80 mm +0.046 |
Principais características e vantagens de engenharia
📝 Four Output Flange Variants
FA, FB, FC and FD cover pilot diameters from 60 to 95 mm, matching the most common driven-machine bolt circles in textile and industrial equipment without custom machining — dramatically reducing OEM project lead times.
⚙ NEMA 56C & IEC Dual Compatibility
Accepts NEMA 56C frame (0.625 in bore) and IEC 71/80 frame motors with B14 or B5 adaptors — for Australian businesses stocking both metric and imperial motors, this eliminates the need for two separate reducer variants in inventory.
📈 129 Nm Peak Torque at 2.3 kg
Specific torque density over 56 Nm/kg exceeds most cast iron units of similar size — enabling machine designers to specify a smaller, lighter gearbox without sacrificing output capability.
🌞 Powder-Coat Corrosion Protection
Electrostatic polyester powder coat over shot-blast aluminum provides 500+ hour salt spray resistance — essential for coastal industrial facilities in Queensland and Western Australia where humidity accelerates surface degradation.
🔓 Hollow Output Bore Option
18 mm hollow bore output allows the gearbox to slide directly onto a driven shaft, eliminating coupling hardware and reducing overall drivetrain length — common in conveyor drum drives and mixer agitator shafts.
Cenários de aplicação e adequação ao setor
🧩
Textile Machinery
Warp beam drives, loom let-off and take-up mechanisms — precise low-backlash output maintains tension accuracy in high-thread-count fabric production.
🚵
Material Handling
Roller conveyor drives, accumulation zones, pallet stop/release mechanisms in warehousing and e-commerce fulfilment centres.
🌳
Woodworking Equipment
Feed drives for thicknessers, edge banding machines and CNC router gantries — self-locking at rest prevents workpiece slip between cuts.
⚡
Automated Gates & Barriers
Swing gate operators and boom barrier drives — self-locking behaviour prevents unauthorised manual override when the motor is off.
Guia de Seleção e Configuração do Eixo
- Ratio 5–15: Agitators and fans — 93–280 rpm, moderate torque.
- Ratio 20–50: Conveyor, textile, gate operators — 28–70 rpm output.
- Ratio 60–100: Positioning, metering, slow indexing — 14–23 rpm, maximum torque per watt.
Shaft Configuration Details
Standard 18 mm H8 solid shaft with 6×20.8 mm keyway and M6 threaded end. Optional hollow bore (18 mm) for direct drum mounting. Four flange geometries (FA–FD) accommodate pilot diameters 60–95 mm.
Aluminum vs. Cast Iron Worm Reducer — NMRV040 Comparison
| Critério | EP-NMRV040 (Aluminum) | Cast Iron Worm Reducer |
|---|---|---|
| Peso unitário | 2.3 kg ✅ | 8–12 kg |
| Opções de flange de saída | 4 (FA/FB/FC/FD) ✅ | Typically 1–2 |
| Resistência à corrosão | Alto ✅ | Baixo sem revestimento |
| Torque Density | >56 Nm/kg ✅ | ~15 Nm/kg |
| Motor Standard Compatibility | NEMA 56C + IEC ✅ | Usually one standard |
| Mounting Orientations | Unlimited ✅ | Restricted |
Perguntas frequentes
❓ What output flange options are available for the NMRV040?
FA (60 mm pilot / 110 mm OD), FB (60 mm pilot, larger bolt circle), FC (95 mm pilot / 140 mm OD), FD (80 mm pilot / 120 mm OD).
❓ What is the difference between the NMRV040 and NMRV050?
NMRV040: 129 Nm at 2.3 kg. NMRV050: ~290 Nm at 3.5 kg with 25 mm shaft. Step up when you need more than 130 Nm or a larger driven shaft.
❓ Can the NMRV040 handle VFD input?
Yes — fully VFD compatible. At frequencies below 30 Hz, verify motor thermal performance. The gearbox imposes no VFD limitation.
❓ Is the NMRV040 suitable for washdown environments?
Standard IP54. For full washdown, specify optional IP65 upgrade with additional face seals and sealed vent plugs.
❓ What motor frame sizes are compatible with the NMRV040?
NEMA 56C (0.625 in) in inch series; IEC 71 or 80 frame via B14/B5 adaptors in metric series.
Avaliações de clientes
★★★★★
“Fitted EP-NMRV040 units on our roller conveyor in Brisbane. The FC output flange matched our drive roll bolt pattern perfectly — no adaptor needed. 18 months continuous with zero issues.”
Michael Donovan 🇦🇺 — Engineering Manager, Logistics Solutions, Australia
★★★★★
“NMRV040 units on our warp beam drives. Low backlash maintains consistent tension. The aluminum housing is much lighter than before — maintenance is easier for our team.”
Wei Jianming 🇨🇳 — Technical Director, Textile Machinery Co., China
★★★★½
“Good quality worm reducer for our edge banding machines. Four flange options meant an exact fit for our existing machine. Delivery was well packaged and arrived on time.”
Marco Ferretti 🇮🇹 — Workshop Manager, Woodcraft Srl, Italy
Acessórios compatíveis e produtos relacionados
🔌
Adaptadores de motor IEC B5/B14
For IEC 71–90 frame motors including VFD-compatible inverter-duty motors up to 0.55 kW.
🔨
NRV040 Torque Arm
K1=100 mm steel torque arm for shaft-mount NRV040 — prevents housing rotation on drum drives without rigid base mounting.
🔃
Flanges de saída (FA/FB/FC/FD)
Four precision-machined variants — specify pilot diameter at order for direct bolted coupling without machining.
🔒
Tampa de entrada protetora
Essential for open conveyor environments where sawdust, grain, or textile fibres can accumulate around the input shaft.
Source the EP-NMRV040 — Volume & OEM Pricing Available
Ever Power supplies direct to Australian importers, OEMs, and distributors. Request a technical consultation for your specific application.
Contact Sales Team
Sobre Ever Power
✉ [email protected] | Distributor & OEM enquiries welcome
