Description
EP-NMRV030 Aluminium Worm Gearbox — Overview
The EP-NMRV030 is a versatile entry-level aluminium worm gearbox representing the ideal entry-level unit in the NMRV series, engineered around a 030 mm worm gear centre distance. Developed to meet growing demand for lightweight, corrosion-resistant drive solutions across food processing lines, textile machinery, and agricultural equipment, it combines precision-manufactured worm and wheel geometry with a robust die-cast aluminium A360 housing that delivers natural corrosion resistance without the bulk of traditional cast iron. The NMRV030 accepts IEC motor flanges (56B5, 63B5, 63B14), enabling direct motor-to-gearbox coupling without adaptors — a significant advantage for machine builders seeking compact, efficient drive packages. With output torques up to 200 Nm and reduction ratios from 5–100:1, the EP-NMRV030 reliably serves food-grade and textile-industry drives across Australia and international markets. IP65 shaft sealing, six mounting positions, and a smooth baked-enamel finish make it equally at home in food processing washdown areas, outdoor plant rooms, and demanding industrial environments.
Technical Specifications — EP-NMRV030
General Specifications
| Parameter | Specification |
|---|---|
| Model Number | EP-NMRV030 |
| Centre Distance | 30 mm |
| Max Output Torque | 200 Nm |
| Reduction Ratios | 5–100:1 |
| Input Bore Diameter | 9 / 11 mm |
| Output Shaft Diameter | 14 mm |
| Compatible IEC Flanges | 56B5, 63B5, 63B14 |
| Max Recommended Input Power | 0.09 kW |
| Input Shaft Radial Load (Fri max) | 1830 N |
| Housing Material | Die-cast aluminium alloy A360 |
| Worm Wheel Material | Phosphor bronze |
| Worm Shaft Material | 20CrMnTi case-hardened steel, ground |
| Surface Treatment | Baked enamel paint (RAL 5010 blue) |
| Lubricant | ISO VG 220 worm gear oil, ~0.10 L |
| IP Rating | IP65 (shaft seals standard) |
| Ambient Temperature | -10°C to +40°C standard; up to +60°C with synthetic oil |
| Max Input Speed | 1,400 rpm (recommended); 1,800 rpm (max) |
| Approx. Weight | ~1.5 kg |
| Mounting Positions | B3, B6, B7, B8, V5, V6 |
| Output Configurations | Solid shaft / Double shaft (DZ) / Output flange (FL) |
| Standards | ISO 9001, CE marking, IEC 60034 motor compatibility |
Performance Selection Data (1,400 rpm Input)
| Ratio (i) | Output Speed (r/min) | Output Torque (Nm) | Input Power (kW) |
|---|---|---|---|
| 5:1 | 280 | 200 | 0.09 |
| 7.5:1 | 187 | 280 | 0.09 |
| 10:1 | 140 | 320 | 0.09 |
| 20:1 | 70 | 380 | 0.09 |
| 30:1 | 47 | 400 | 0.09 |
| 50:1 | 28 | 420 | 0.09 |
Core Features & Benefits
◯Corrosion-Resistant Aluminium Housing
Die-cast A360 aluminium provides inherent corrosion resistance ideal for food processing washdown zones, coastal Australian sites, and humid industrial environments. The baked enamel finish adds UV protection for outdoor installations.
△IEC-Standard Motor Mounting (56B5, 63B5, 63B14)
Hollow bore input with IEC-standard flange (56B5, 63B5, 63B14) allows direct coupling to AC motors, servos, and stepper motors without separate adaptors, reducing installation time and eliminating alignment problems.
◆Superior Thermal Dissipation
Aluminium’s thermal conductivity (~160 W/m·K) dissipates heat up to 3× faster than cast iron, keeping operating temperatures lower and extending lubricant and seal life in enclosed machine cabinets.
■Six Mounting Positions + Three Output Options
B3, B6, B7, B8, V5, V6 mounting positions combined with solid shaft, double shaft (DZ), and output flange (FL) configurations give machine designers complete layout freedom.
▶Static Self-Locking at High Ratios
At ratios ≥ 40:1, worm geometry provides static self-locking, preventing back-drive under static load without an external brake — simplifying gate actuators, lift platforms, and positioning systems.
●Long Service Life: ≥20,000 Hours L10
Ground worm shafts, precision-hobbed phosphor bronze wheels, and preloaded bearings ensure consistent gear mesh throughout service life, delivering minimum L10 bearing life of 20,000 hours at rated load.
EP-NMRV030 vs Traditional Cast Iron Worm Gearbox
Australian and international machine builders consistently choose aluminium worm gearboxes for their combination of performance, durability, and total cost of ownership advantages over cast iron alternatives.
| Feature | EP-NMRV030 (Aluminium) | Traditional Cast Iron |
|---|---|---|
| Housing Material | Die-cast aluminium A360 | Grey cast iron GG25 |
| Approx. Weight | ~1.5 kg | 30–40% heavier |
| Corrosion Resistance | Excellent — inherent Al₂O₃ oxide layer | Requires coating; prone to rust |
| Thermal Conductivity | ~160 W/m·K — superior heat dissipation | ~50 W/m·K — poor heat dissipation |
| Surface Finish | Smooth baked enamel, easy to clean | Rough cast surface, hard to clean |
| Motor Mounting | Integrated IEC flange (no adaptor) | Often needs separate adaptor plate |
| Noise Level | Low — aluminium damps vibration | Higher — cast iron transmits vibration |
| Food Industry Suitability | High — smooth, corrosion-resistant | Low — porous surface, rust risk |
| IP Rating | IP65 shaft seals standard | IP54–55 typical |
| Price / Performance | Excellent — lower total cost of ownership | Higher initial & lifetime cost |
Application Sectors
The EP-NMRV030 is well suited to the following industries and application types, each benefiting from its compact size, corrosion-resistant housing, and reliable torque output.
⚘ Food Processing
Suitable corrosion-resistant gearbox for food processing lines.
⚙ Textile Machinery
Suitable aluminium worm reducer for textile looms.
⚚ Agricultural Equipment
Suitable compact worm gearbox for agricultural feeders.
⚒ Vending Machines
Suitable worm reducer for vending machine drives.
⚛ Small Pump Drives
Suitable lightweight gearbox for small pump drives.
Selection Guide, Mounting Positions & Shaft Configurations
How to Select the Correct Ratio
- Calculate required output torque: M₂ = 9,550 × P (kW) / n₂ (rpm), then multiply by your service factor (fs = 1.0–2.5 depending on daily duty hours and load class).
- Find your ratio: Divide motor speed (typically 1,400 rpm) by required output speed. Select the closest ratio from: 5–100:1.
- Confirm torque capacity: The selected ratio’s rated torque must exceed M₂ × fs. If not, step up to the EP-NMRV040.
Mounting Positions
| Position | Description | Shaft Orientation | Oil Level Note |
|---|---|---|---|
| B3 | Horizontal foot mount | Horizontal | Standard fill level — default factory supply |
| B6 | Foot mount, output shaft down | Vertical downward | Reduce oil by ~15% |
| B7 | Foot mount, output shaft up | Vertical upward | Increase oil by ~15% |
| B8 | Foot mount, output shaft horizontal (180°) | Horizontal reversed | Standard fill level |
| V5 | Flange mount, shaft down | Vertical downward | Reduce oil — check lubrication guide |
| V6 | Flange mount, shaft up | Vertical upward | Increase oil — check lubrication guide |
Output Shaft Options
Standard output shaft diameter: 14 mm. Input bore: 9 / 11 mm.
14 mm diameter with keyway. Default configuration. Model suffix: none.
Shaft exits both sides for bidirectional power take-off. Model suffix: DZ.
Flanged output for direct bolt-on connection, eliminating shaft coupling. Model suffix: FL.
Frequently Asked Questions — EP-NMRV030
▶ What output shaft diameter does the EP-NMRV030 provide?
The EP-NMRV030 features a 14 mm solid output shaft with a standard keyway, well-matched for small sprockets, pulleys, and couplings in food processing and textile machinery.
▶ Which IEC motor flanges are compatible with the EP-NMRV030?
The EP-NMRV030 accepts IEC 56B5, 63B5, and 63B14 flanges, covering AC motors up to 0.09 kW. Custom flange adaptors are available for non-standard frames on request.
▶ How do I select the correct gear ratio for the EP-NMRV030?
Calculate required output torque: M₂ = 9550 × P (kW) / n₂ (rpm), then multiply by your service factor (fs). Select the ratio delivering your target speed from the selection table and confirm the rated torque exceeds M₂ × fs.
▶ Can the EP-NMRV030 be used in food processing washdown zones?
Yes. The die-cast aluminium housing is naturally corrosion-resistant and can be supplied with food-grade paint. Combined with IP65 shaft seals, it suits washdown environments. Specify food-grade lubricant and enhanced seals when ordering for full compliance.
▶ What is the operating temperature range of the EP-NMRV030?
Standard rated ambient temperature is -10°C to +40°C. For 40–50°C environments, derate the service factor by multiplying fs × 1.3–1.4. Above 60°C, contact our engineering team for a customised solution using synthetic lubricant.
▶ How does the NMRV030 differ from the NMRV025?
The NMRV030 steps up with a 30 mm centre distance, larger 14 mm output shaft, higher maximum torque (~200 Nm), and a broader IEC flange selection (adds 63B14). Choose the NMRV030 when the NMRV025 is torque-limited or a larger shaft connection is required.
Customer Reviews
★★★★★
“Running the EP-NMRV030 in our cheese conveyor washdown zones — the aluminium housing handles daily high-pressure cleaning with zero corrosion. Eighteen months in and still performing faultlessly.”
Sarah O’Brien — Dairy Processing Equipment Pty Ltd
Australia
★★★★★
“Replaced old cast iron units on our loom drives. The noise reduction is remarkable and the compact footprint freed up space on our crowded machinery floor.”
Pieter Vandenberghe — Textile Machinery NV
Belgium
★★★★☆
“Used in grain auger drives. Consistent quality batch to batch and standard IEC flanges simplify our assembly process. The 30 mm centre distance is a perfect fit for our compact designs.”
Huang Wei — Agricultural Machinery Co.
China
Related Products & Accessories
⚙ Compatible Motors
IEC B5/B14 flange single-phase (230V) and three-phase (380V) AC motors for frames: 56B5, 63B5, 63B14.
Servo and stepper motors available with input adaptor kits. VFD-compatible motors for variable-speed applications.
⚒ Output Accessories
■ Single solid output shaft (standard)
■ Double bidirectional shaft (DZ)
■ Output flange (FL)
■ Torque arm for torque reaction mounting
■ Dust cover for unused shaft end
◆ Related Series
■ EP-NMRV-E030 — coaxial inline output
■ EP-NRV030 — solid input shaft variant
■ EP-NRV-E030 — solid input, coaxial output
■ EP-NMRV040 — next frame size up
Ready to Order the EP-NMRV030?
Request a quote, technical selection support, or enquire about OEM and distributor partnership opportunities for Australian and international markets.
▼ Distributor & OEM partnerships welcome — volume pricing available
