Опис
EP-NMRV063 Worm Gearbox — Heavy-Belt Conveyor & Industrial Agitator Power
The EP-NMRV063 aluminum worm gearbox is the workhorse of Ever Power’s upper compact range — the first model in the NMRV series with a housing large enough to accept both NEMA 56C and the larger NEMA 140TC input flanges, broadening its motor compatibility to cover 1.1 kW drives and above. At 6.2 kg, it remains hand-installable by a single operator while delivering output torques reaching 500 Nm — more than sufficient for loaded inclined belt conveyors, heavy agitator tanks, and agricultural PTO-driven machinery used across regional Australia.
The NMRV063 uniquely offers five output flange configurations (FA, FB, FC, FD, FE) — the widest selection in the NMRV range — with pilot diameters spanning 80 to 130 mm. Combined with a 28 mm primary output shaft diameter and optional 25 mm variant, this makes the NMRV063 a true universal worm gear reducer capable of interfacing with driven equipment across all major industrial standards.
Technical Specifications
| Parameter | Value |
|---|---|
| Model | EP-NMRV063 |
| Weight (without motor) | 6.2 kg |
| Gear Ratios | 7.5, 10, 15, 20, 25, 30, 40, 50, 60, 80, 100 |
| Max Input Power (P1) | Up to 1.5 kW |
| Max Output Torque (M2) | Up to 500 Nm |
| Output Speed Range | 14 – 186.7 rpm (at 1400 rpm input) |
| Max Radial Load Fr2 | Up to 5,595 N |
| Housing Material | Die-cast aluminum alloy |
| Worm Wheel Material | Phosphor bronze |
| Output Shaft Dia. (Metric) | 25 mm H8 (28 mm primary) |
| Output Shaft Dia. (Inch) | 1.125 in (-0.0005) |
| Keyway (metric 25 mm) | 8 x 28.3 mm |
| Input Shaft Dia. (Metric) | 19 j6 mm |
| Input Bore Dia. (Inch) | 0.6250 in (56C) / 0.8750 in (140TC) |
| NEMA Input Flanges | 56C, 140TC |
| Output Flange Options | FA, FB, FC, FD, FE |
| Mounting Options | Foot (NMRV), Shaft (NRV), Flange |
| Protection Class | IP54 standard |
| Operating Temperature | -10 to +40 deg C |
Key Dimensional Data — Metric & Inch
| Dimension | Metric (mm) | Inch (in) |
|---|---|---|
| Centre Height (A) | 112 | 4.41 |
| Centre Distance (I) | 63 | — |
| Output Shaft dia. | 25 mm H8 | 1.125 in |
| Input Shaft dia. | 19 j6 mm | 0.750 in |
| Keyway (output) | 8 x 28.3 mm | 0.25 x 1.875 in |
| Output Shaft Length | 50 mm | — |
| Flange Mount BK | 80 mm | 3.150 in |
Core Features & Engineering Advantages
📝 Five Output Flange Configurations
FA through FE cover pilot diameters from 80 to 130 mm — the widest selection in the NMRV range. Engineers can match virtually any driven-machine bolt circle without custom machining, reducing project engineering cost and lead time significantly for Australian OEM machine builders.
⚙ Dual NEMA Input — 56C & 140TC
The NMRV063 is the entry-level NMRV model to accept the NEMA 140TC input flange, enabling direct mounting of larger 0.75–1.5 kW motors commonly used in Australian agricultural and mining ancillary equipment — without the need for an uprated NMRV075 housing.
📈 500 Nm Output at 6.2 kg
Specific torque output of approximately 80 Nm/kg. For conveyor designers accustomed to heavy cast iron reducers, this represents a 60–70% weight saving with equivalent or superior torque output — directly reducing structural steel requirements in conveyor frames.
🔥 High Radial Load Capacity — 5,595 N
The NMRV063’s oversize output shaft bearings support up to 5,595 N radial load — enabling direct chain sprocket or belt pulley mounting without intermediate bearing pedestals. This is critical for grain auger drives and quarry conveyor tail-end drives operating in remote Australian locations.
♨ Quiet Bronze Worm Mesh
The phosphor-bronze wheel meshes against a hardened steel worm to produce smooth, low-vibration output — typically under 68 dB(A) at full load. In food processing and grain handling facilities, lower noise reduces workplace fatigue and improves compliance with SafeWork Australia noise exposure limits.
Application Scenarios & Industry Suitability
🌾
Agriculture & Grain Handling
Grain auger drives, seed conveyor tube drives, and fertiliser spreader mechanisms — high radial load capacity supports direct sprocket mounting in remote farm environments.
⛩
Heavy Belt Conveyors
Loaded inclined belt conveyors in quarrying, mining ancillary, and bulk materials handling — the NMRV063’s 500 Nm output handles starting torque peaks on heavy loads.
⚙
Industrial Agitators
Large tank mixer drives, paint agitators, and polymer blending vessels — vertical shaft mounting with any-orientation oil fill enables overhead drive configurations.
🏭
Bakery & Grain Processing
Dough divider drives, flour conveyor screw drives, and bread moulder head drives — the sealed, wash-down-capable housing suits food-grade production environments.
Selection Guide & Shaft Configuration
- Ratio 7.5–15: High-speed conveyor drives and agitators — 93–186 rpm output.
- Ratio 20–50: Heavy belt conveyors, mixing vessels — 28–70 rpm output, high torque-speed balance.
- Ratio 60–100: Slow positioning, heavy valve actuators — 14–23 rpm, maximum radial load tolerance.
Shaft & Flange Configuration Details
Primary output shaft: 25 mm H8 with 8×28.3 mm keyway and M8 threaded end. Optional hollow bore for direct shaft coupling. Five output flanges (FA–FE) with pilot diameters 80–130 mm. Inch option: 1.125 in shaft with 0.25×1.875 in keyway. NEMA 56C or 140TC input flange — specify at order.
Aluminum vs. Cast Iron — NMRV063 Performance Comparison
| Criterion | EP-NMRV063 (Aluminum) | Cast Iron Equivalent |
|---|---|---|
| Unit Weight | 6.2 kg ✅ | 18–25 kg |
| Output Flange Options | 5 (FA–FE) ✅ | Typically 1–2 |
| NEMA Flange Options | 56C & 140TC ✅ | Usually one size |
| Radial Load Capacity | 5,595 N ✅ | Similar, much heavier |
| Corrosion Resistance | High ✅ | Low (rusts) |
| Mounting Orientations | Any ✅ | Restricted |
Frequently Asked Questions
❓ What is the maximum output torque of the EP-NMRV063?
Up to 500 Nm at 100:1 ratio with 1.5 kW input — suitable for heavy belt conveyors, large agitators, and loaded agricultural auger drives.
❓ What is unique about the NMRV063 vs NMRV050 and NMRV075?
First NMRV to accept NEMA 140TC alongside 56C. Five output flange options (FA–FE) — the widest in the series. Sits between NMRV050 (290 Nm, 3.5 kg) and NMRV075 (750 Nm, 9 kg) for 300–500 Nm applications.
❓ Can the NMRV063 handle direct chain sprocket mounting?
Yes — output bearings support up to 5,595 N radial load. Suitable for standard industrial roller chain sprocket mounting. Verify sprocket pitch and chain tension against the radial load spec for heavy-duty applications.
❓ Is the NMRV063 available with a hollow bore output?
Yes — hollow bore output available alongside the standard 25 mm solid shaft, enabling direct shaft mounting without a separate coupling element.
❓ What is the radial load capacity of the EP-NMRV063?
Maximum 5,595 N at 100:1 ratio. At lower ratios and higher speeds, capacity reduces — refer to the performance table for your specific operating ratio.
Customer Reviews
★★★★★
“Fitted EP-NMRV063 on grain auger drives at our storage facility in Toowoomba. Direct sprocket mounting, no extra bearing pedals — the radial load spec is genuinely as stated. Two full harvest seasons without issue.”
Craig Hollingsworth 🇦🇺 — Site Manager, Grain Storage Co., Australia
★★★★★
“Replacing cast iron units with NMRV063 on our belt conveyor drives cut conveyor frame weight by 30% and installation time by half. Quality is solid and performance as expected.”
Tomasz Wiśniewski 🇵🇱 — Maintenance Engineer, Aggregate Processing, Poland
★★★★½
“Used on large tank agitator drives in our pharmaceutical facility. Five output flange options meant a direct fit to our agitator hub without custom machining. Very satisfied with performance and delivery.”
Priya Venkataraman 🇮🇳 — Process Engineer, Pharma Industries, India
Compatible Accessories & Related Products
🔌
IEC B5/B14 Motor Adaptors
IEC 80–100 frame adaptors for single/three-phase and brake motors. Covers 0.37–1.5 kW motor range for typical NMRV063 applications.
🔨
NRV063 Torque Arm
K1=150 mm steel torque arm for shaft-mount NRV063 — supports heavy-duty conveyor drum and agitator shaft-mount configurations without rigid base.
🔃
Output Flanges (FA–FE)
Five precision-machined variants with pilot diameters 80–130 mm — the widest selection in the NMRV range. Specify pilot diameter at order.
🔒
Protective Input Cover
Heavy-duty polypropylene cover for the NMRV063 input side — protects against grain dust, agricultural debris, and outdoor contaminants.
Ready to Specify the EP-NMRV063?
Ever Power’s team supports ratio selection, flange configuration, and motor pairing for Australian OEM builders, agricultural equipment manufacturers, and global distributors.
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About Ever Power
✉ [email protected] | Agricultural & OEM enquiries welcome
