Description
EP-NMRV-E030 — IEC Flange Input Aluminium Worm Gearbox with Tail Output Shaft
Technical Specifications — EP-NMRV-E030
| Parameter | Value |
|---|---|
| Series | NMRV-E (Bore Input with IEC Flange, Worm-Direction Tail Output Shaft) |
| Centre Distance | 030 mm |
| Reduction Ratios | 5, 7.5, 10, 15, 20, 25, 30, 40, 50, 60, 80, 100 |
| Rated Input Power | Up to 0.18 kW |
| Output Speed Range | 14 to 280 r/min (at 1400 r/min input) |
| Max Output Torque | 1,367 N·m |
| Input Configuration | Bore input with IEC input flange + worm-direction tail output shaft |
| IEC Input Flanges | IEC flanges: 56B14, 63B14, 63B5 |
| Tail Output Shaft | Worm-direction (co-axial with worm shaft, opposite end) |
| Housing Material | Die-cast aluminium alloy |
| Worm Wheel Material | Phosphor bronze |
| Worm Shaft Material | 20CrMnTi alloy steel, case hardened, precision ground |
| Output Bore Diameter | 18 mm H7 with 5 mm keyway |
| Lubrication | ISO VG 220 gear oil (factory filled) |
| Mounting Positions | B3, B6, B7, B8, V5, V6 |
| Protection Class | IP54 |
| Ambient Temperature | -10°C to +40°C |
NMRV-E030 Performance Table (0.18 kW / 1400 r/min)
| Ratio (i) | Output Speed (r/min) | Output Torque (N·m) | Service Factor (fs) |
|---|---|---|---|
| 7.5 | 187 | 683 | 7.0 |
| 10 | 140 | 752 | 5.4 |
| 15 | 93 | 861 | 3.9 |
| 20 | 70 | 948 | 3.1 |
| 25 | 56 | 1,021 | 3.1 |
| 30 | 47 | 1,085 | 2.5 |
| 40 | 35 | 1,194 | 1.9 |
| 50 | 28 | 1,286 | 1.5 |
| 60 | 23 | 1,367 | 1.3 |
✅ Core Features & Unique Benefits
🔗 Worm-Direction Tail Output Shaft — The Key Differentiator
The defining feature of the NMRV-E030 is its additional tail output shaft that extends in the same direction as the worm shaft axis. This second output enables simultaneous drive of two independent loads from a single gearbox — a primary application drive via the main output bore and a secondary auxiliary drive (encoder, tachometer, small pump, or fan) via the tail shaft.
📧 IEC Bore Input — Motor-Direct Mounting
The NMRV-E030 combines the IEC bore-input flange convenience of the NMRV030 with the tail shaft output. Any standard IEC 56–63 frame motor can be flanged directly to the bore input, while the tail shaft simultaneously provides encoder or auxiliary drive capability without additional coupling hardware.
◯ Same Torque as Standard NMRV030
The NMRV-E030 delivers identical maximum output torque (1,367 N·m) to the standard NMRV030, confirming that the tail shaft adds zero performance penalty on the main output. The tail shaft is driven directly off the worm shaft end, not the output stage.
🅆 Encoder & Feedback Ready
The tail output shaft provides a direct connection point for rotary encoders, tachogenerators, and pulse generators that monitor worm shaft speed in closed-loop motion control systems, eliminating external encoder brackets and coupling hardware.
🚫 IP54 — Dual-Seal Integrity
Both the main output bore and the tail shaft exit are sealed with dual-contact lip seals, maintaining IP54 protection across all mounting orientations without oil weeping at either shaft interface.
🏭 Application Scenarios
⚙ Precision Automation with Encoder Feedback
NMRV-E worm gearbox for closed-loop conveyor positioning systems where the tail shaft mounts a rotary encoder, providing real-time feedback to a PLC or motion controller without external encoder mounting hardware.
📦 Packaging Line Speed Monitoring
Tail-shaft-mounted tachogenerator on the NMRV-E030 provides continuous speed monitoring on packaging line drives, enabling instant fault detection and line-speed synchronisation across multiple driven stations.
🍕 Food & Beverage Hygienic Drives
Compact worm gear reducer with tail output shaft for hygienic food processing conveyor drives where encoder feedback is required for portion-control accuracy and the IP54 aluminium housing withstands daily washdown.
💉 Pharmaceutical Dispensing
Low-noise NMRV-E worm gearbox for pharmaceutical dispensing and tablet-coating drum drives where tail-shaft encoder feedback ensures precise dosing volume regardless of load variation.
🔎 Selection Guide
Worked Example — Pharmaceutical Tablet Coating
Required: NMRV-E030 at i=20 driving a tablet coating drum at 70 r/min with encoder feedback for dose control. Rated output torque at i=20 = 948 N·m. Motor: 0.12 kW, IEC 63B14. Tail shaft: 1,000 PPR incremental encoder, 14 mm bore. ✅ NMRV-E030-20-63B14 selected.
⚖ NMRV-E030 vs Standard NMRV030
| Feature | EP-NMRV-E030 (with Tail Shaft) | EP-NMRV030 (Standard) |
|---|---|---|
| Tail Output Shaft | ✅ Yes — worm-direction | No |
| Encoder / Feedback Mounting | Direct on tail shaft | Requires external bracket |
| Dual-Load Drive | Yes — main + tail | No — single output only |
| Main Output Torque | 1,367 N·m | 1,367 N·m |
| Housing Dimensions | Slightly longer (tail shaft protrusion) | Standard length |
| IEC Flange Input | Yes — standard | Yes — standard |
NMRV-E030 Main Output Shaft Dimensions
| G1 (mm) | K1 (mm) | L/DZ (mm) | L1/SZ (mm) | b2 (mm) | d h6 (mm) | Keyway |
|---|---|---|---|---|---|---|
| 63 | 64 | 102 | 128 | 5 | 14 | M6 |
❓ Frequently Asked Questions
What is the tail output shaft on the EP-NMRV-E030 and what is it used for?
The tail output shaft on the NMRV-E030 is a secondary shaft extending in the worm-direction axis (co-axial with the worm shaft, opposite end). It is used to mount rotary encoders, tachogenerators, or pulse generators for speed/position feedback, or to drive a small auxiliary load such as a lubrication pump, cooling fan, or pilot valve simultaneously with the main output drive.
Does the tail shaft affect the main output torque of the NMRV-E030?
No. The tail shaft is driven directly off the worm shaft end and carries only the small torque required for the encoder or auxiliary device. The main output bore delivers the full rated 1,367 N·m, identical to the standard NMRV030.
What encoder types are compatible with the NMRV-E030 tail output shaft?
The tail shaft is a standard keyed shaft accepting any incremental or absolute rotary encoder with the matching bore size. Common options include 5–24V incremental encoders (100–10,000 PPR), SSI absolute encoders, and resolver-type feedback devices. Confirm the encoder bore and key dimensions with the encoder supplier before ordering.
Which IEC motor flanges are available for the EP-NMRV-E030?
The NMRV-E030 accepts the following IEC input flanges: 56B14, 63B14, 63B5. This covers the standard motor frame range for the 0.18 kW power class. Servo and stepper motor adaptor plates available on request.
Can the NMRV-E030 tail shaft be used to drive a secondary load simultaneously?
Yes, provided the secondary load torque on the tail shaft does not exceed the worm shaft’s additional torque capacity. For light-duty secondary loads such as small lubrication pumps (below 0.05 kW) or pilot valves, the tail shaft can be used simultaneously without affecting main output performance. Consult our engineering team for secondary loads above 0.05 kW.
⭐ Customer Reviews
★★★★★
“We fitted the NMRV-E030 on our pharmaceutical tablet-coating drum drive. The tail shaft mounts a 1,000 PPR encoder that feeds back to our dosing controller. The setup eliminated an external encoder bracket assembly, saving 45 minutes per installation across our twelve production lines.”
Dr. Petra S. — Pharmaceutical Equipment OEM 🇩🇪 Germany
★★★★★
“The NMRV-E030 drives our food-portion conveyor. The tail-shaft encoder feedback to our PLC has maintained portion-weight accuracy within 0.5% for over 8 months of continuous three-shift operation. Zero leakage and zero corrosion in our washdown environment.”
Sophie M. — Production Engineer, Food Portioning Plant 🇦🇺 Australia (NSW)
★★★★☆
“Used the NMRV-E030 on precision seed-rate control equipment. The tail shaft connected directly to our GPS controller encoder interface. Seed placement accuracy improved by 15% compared to our previous open-loop setup.”
Paul K. — Precision Agriculture Technician 🇳🇿 New Zealand
⚙ Accessories & Compatible Products
⚡ IEC Motors (B5/B14)
Standard AC motors with matching IEC flange. VFD inverter-duty versions available for variable-speed control.
🔗 Output Shaft Kits
Single solid (DZ), double-ended (SZ), output flange (F), hollow flange (FL) — all H7/h6 tolerance with standard keyways.
🔨 Torque Arms & Brackets
Steel torque reaction arms for shaft-mount configurations; foot-mounting plates for B3/B6 orientations.
🔒 Seal & Breather Kits
Replacement lip-seal kits, vented breather plugs, and magnetic drain plugs for extended service intervals.
Get a Quote for EP-NMRV-E030
Our engineering team will confirm the IEC flange size, encoder shaft specification, and reduction ratio for your pharmaceutical or food processing closed-loop application.
The EP-NMRV-E030 aluminium worm gearbox combines the bore-input IEC flange convenience of the NMRV030 with an additional worm-direction tail output shaft. Centre distance 030 mm, ratios 5 to 100, input power up to 0.18 kW, max output torque 1,367 N·m. The tail shaft enables simultaneous encoder feedback, tachometer monitoring, or auxiliary drive — the perfect instrumented worm gearbox for closed-loop automation, precision conveyor control, and SCADA-integrated industrial drives.
