Description
EP-NMRV-E075 — IEC Flange Input Aluminium Worm Gearbox with Tail Output Shaft
Technical Specifications — EP-NMRV-E075
| Paramètre | Valeur |
|---|---|
| Série | NMRV-E (Bore Input with IEC Flange, Worm-Direction Tail Output Shaft) |
| Distance du centre | 075 mm |
| Taux de réduction | 5, 7.5, 10, 15, 20, 25, 30, 40, 50, 60, 80, 100 |
| Puissance d'entrée nominale | Up to 4.0 kW |
| Plage de vitesse de sortie | 14 à 280 tr/min (à une entrée de 1400 tr/min) |
| Couple de sortie maximal | 6,603 N·m |
| Configuration d'entrée | Bore input with IEC input flange + worm-direction tail output shaft |
| Brides d'entrée IEC | IEC flanges: 71B5, 80B5, 80B14, 90B5, 90B14, 100/112B14 |
| Arbre de sortie arrière | Sens de rotation de la vis sans fin (coaxial avec l'arbre de la vis sans fin, extrémité opposée) |
| Matériau du boîtier | Alliage d'aluminium moulé sous pression |
| Matériau de roue à vis sans fin | Bronze phosphoreux |
| Matériau de la tige de vis sans fin | Acier allié 20CrMnTi, cémenté, rectifié avec précision |
| Diamètre d'alésage de sortie | 35 mm H7 with keyway |
| Lubrification | Huile pour engrenages ISO VG 220 (remplissage d'usine) |
| Positions de montage | B3, B6, B7, B8, V5, V6 |
| Classe de protection | IP54 |
| Température ambiante | -10°C à +40°C |
NMRV-E075 Performance Table (4.0 kW / 1400 r/min)
| Rapport (i) | Vitesse de sortie (tr/min) | Couple de sortie (N·m) | Facteur de service (fs) |
|---|---|---|---|
| 7.5 | 187 | 2,785 | 1.9 |
| 10 | 140 | 3,065 | 1.5 |
| 15 | 93 | 3,509 | 1.1 |
| 20 | 70 | 3,882 | 1.1 |
| 25 | 56 | 4,273 | 1.0 |
| 30 | 47 | 4,421 | 1.0 |
| 40 | 35 | 4,865 | 1.5 |
| 50 | 28 | 5,241 | 1.2 |
| 60 | 23 | 5,569 | 1.0 |
| 80 | 18 | 5,799 | 1.9 |
| 100 | 14 | 6,603 | 1.9 |
✅ Fonctionnalités principales et avantages uniques
🔗 Arbre de sortie à vis sans fin — L'élément clé de différenciation
The defining feature of the NMRV-E075 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.
🌞 4 kW IEC Flange + High-Resolution Tail Shaft
At 4.0 kW, the NMRV-E075 accepts the full IEC 100/112 motor frame directly while simultaneously providing a tail shaft for high-resolution position feedback, covering the demanding requirements of servo-assisted heavy automation.
◯ Same Torque as Standard NMRV075
The NMRV-E075 delivers identical maximum output torque (6,603 N·m) to the standard NMRV075, 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.
Encodeur et retour d'information prêts
L'arbre de sortie arrière fournit un point de connexion directe pour les codeurs rotatifs, les tachymètres et les générateurs d'impulsions qui surveillent la vitesse de l'arbre à vis sans fin dans les systèmes de contrôle de mouvement en boucle fermée, éliminant ainsi les supports de codeur externes et les éléments de couplage.
🚫 IP54 — Intégrité à double joint
L'alésage de sortie principal et la sortie de l'arbre de queue sont tous deux étanches grâce à des joints à lèvres à double contact, maintenant une protection IP54 dans toutes les orientations de montage sans suintement d'huile au niveau de l'interface de l'arbre.
🏭 Scénarios d'application
🌿 Heavy Agricultural Monitoring
High-torque NMRV-E075 worm gearbox for heavy auger and elevator drives where the tail shaft mounts a rotation sensor confirming grain flow in real time and triggering an alarm if the auger jams.
💧 Mixing Tank Level-Speed Control
Worm gear reducer with tail output shaft for industrial mixing tanks where a tail-shaft encoder feeds back to a variable-frequency controller, maintaining constant tip-speed regardless of fluid viscosity.
🏗 Construction Material Monitoring
Aluminium worm gearbox with tail shaft for concrete mixer and aggregate conveyor drives where the tail-shaft tachometer provides real-time rotation monitoring to the plant SCADA system.
⚙ Servo-Assisted Automation
NMRV-E075 worm gearbox tail shaft for servo-assisted positioning stages where the tail encoder provides position feedback in semi-closed loop control, reducing servo drive cost versus full servo gearbox solutions.
🔎 Guide de sélection
Worked Example — Auger Jam Detection
Required: NMRV-E075 at i=40 driving a grain auger at 35 r/min with SCADA rotation monitoring. Output torque from table = 4,865 N·m. Motor: 3.0 kW, IEC 100/112B14. Tail shaft: rotation sensor, 35 mm bore. ✅ NMRV-E075-40-100/112B14 selected.
⚖ NMRV-E075 vs Standard NMRV075
| Fonctionnalité | EP-NMRV-E075 (with Tail Shaft) | EP-NMRV075 (Standard) |
|---|---|---|
| Arbre de sortie arrière | ✅ Oui — sens du ver | Non |
| Montage de l'encodeur/de la rétroaction | Directement sur l'arbre de queue | Nécessite un support externe |
| Entraînement à double charge | Oui — principal + queue | Non — sortie unique |
| Couple de sortie principal | 6,603 N·m | 6,603 N·m |
| Dimensions du logement | Légèrement plus long (protubérance de la tige de queue) | Longueur standard |
| IEC Flange Input | Yes — standard | Yes — standard |
NMRV-E075 Main Output Shaft Dimensions
| G1 (mm) | K1 (mm) | L/DZ (mm) | L1/SZ (mm) | b2 (mm) | d h6 (mm) | Keyway |
|---|---|---|---|---|---|---|
| 120 | 123 | 192 | 247 | 8 | 28 | M10 |
❓ Foire aux questions
What is the tail output shaft on the EP-NMRV-E075 and what is it used for?
The tail output shaft on the NMRV-E075 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-E075?
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 6,603 N·m, identical to the standard NMRV075.
What encoder types are compatible with the NMRV-E075 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-E075?
The NMRV-E075 accepts the following IEC input flanges: 71B5, 80B5, 80B14, 90B5, 90B14, 100/112B14. This covers the standard motor frame range for the 4.0 kW power class. Servo and stepper motor adaptor plates available on request.
Can the NMRV-E075 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.
⭐ Avis clients
★★★★★
“We installed NMRV-E075 on our heavy auger drive with a tail-shaft rotation sensor feeding our SCADA system. During harvest, we receive real-time confirmation that the auger is turning and immediate notification if it jams. Excellent peace of mind.”
Ian M. — Operations Manager, Grain Facility 🇦🇺 Australia (SA)
★★★★★
“The NMRV-E075 with tail-shaft encoder drives our concrete mixer feed conveyor. The speed feedback to our batching computer maintains accurate aggregate dosing across different mix designs. Concrete quality consistency has improved markedly.”
Tony B. — Plant Manager, Ready-Mix Concrete 🇦🇺 Australia (QLD)
★★★★☆
“We use NMRV-E075 on our chemical mixing tank agitator. The tail shaft tachogenerator monitors worm shaft speed and feeds back to our DCS. We now detect agitator stall in high-viscosity batches before the motor trips, avoiding product losses.”
Sophie M. — Chemical Process Engineer 🇫🇷 France
⚙ Accessoires et produits compatibles
⚡ Moteurs IEC (B5/B14)
Moteurs à courant alternatif standard avec bride IEC correspondante. Versions pour variateur de fréquence disponibles pour la régulation de vitesse.
🔗 Kits d'arbre de sortie
simple plein (DZ), double extrémité (SZ), bride de sortie (F), bride creuse (FL) — tous à tolérance H7/h6 avec rainures de clavette standard.
🔨 Bras de couple et supports
Bras de réaction de couple en acier pour les configurations de montage sur arbre ; plaques de montage de pied pour les orientations B3/B6.
🔒 Kits de joints et de reniflard
Kits de joints à lèvres de rechange, bouchons de ventilation et bouchons de vidange magnétiques pour des intervalles d'entretien prolongés.
Specify the EP-NMRV-E075
Our team will confirm the IEC flange, ratio, and encoder shaft specification for your high-torque closed-loop industrial or agricultural drive.
Le EP-NMRV-E075 aluminium worm gearbox combines the bore-input IEC flange convenience of the NMRV075 with an additional worm-direction tail output shaft. Centre distance 075 mm, ratios 5 to 100, input power up to 4.0 kW, max output torque 6,603 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.
