Descrizione
EP-NMRV-E090 — IEC Flange Input Aluminium Worm Gearbox with Tail Output Shaft
Technical Specifications — EP-NMRV-E090
| Parametro | Valore |
|---|---|
| Serie | NMRV-E (Bore Input with IEC Flange, Worm-Direction Tail Output Shaft) |
| Distanza dal centro | 090 mm |
| Rapporti di riduzione | 5, 7.5, 10, 15, 20, 25, 30, 40, 50, 60, 80, 100 |
| Potenza di ingresso valutata | Up to 5.5 kW |
| Gamma di velocità di uscita | Da 14 a 280 giri/min (con una velocità di ingresso di 1400 giri/min) |
| Coppia massima in uscita | 7,306 N·m |
| Configurazione di input | Bore input with IEC input flange + worm-direction tail output shaft |
| IEC Input Flanges | IEC flanges: 80B14, 90B5, 90B14, 100/112B14 |
| Albero di uscita posteriore | Direzione di avvolgimento della vite senza fine (coassiale con l'albero della vite senza fine, estremità opposta) |
| Materiale per alloggi | lega di alluminio pressofusa |
| Materiale della ruota a vite senza fine | bronzo fosforoso |
| Materiale dell'albero a vite senza fine | Acciaio legato 20CrMnTi, cementato, rettificato di precisione |
| Diametro del foro di uscita | 35 mm H7 with keyway |
| Lubrificazione | Olio per ingranaggi ISO VG 220 (riempito in fabbrica) |
| Posizioni di montaggio | B3, B6, B7, B8, V5, V6 |
| Classe di protezione | IP54 |
| Temperatura ambiente | da -10 °C a +40 °C |
NMRV-E090 Performance Table (5.5 kW / 1400 r/min)
| Rapporto (i) | Velocità di uscita (giri/min) | Coppia in uscita (N·m) | Fattore di servizio (fs) |
|---|---|---|---|
| 7.5 | 187 | 2,785 | 1.9 |
| 10 | 140 | 3,065 | 1.5 |
| 15 | 93 | 3,882 | 1.2 |
| 20 | 70 | 4,273 | 1.1 |
| 25 | 56 | 4,603 | 1.1 |
| 30 | 47 | 4,891 | 1.2 |
| 40 | 35 | 5,383 | 1.5 |
| 50 | 28 | 5,799 | 1.4 |
| 60 | 23 | 6,163 | 1.2 |
| 80 | 18 | 6,783 | 1.1 |
| 100 | 14 | 7,306 | 0.9 |
✅ Caratteristiche principali e vantaggi esclusivi
🔗 Albero di uscita posteriore a vite senza fine: l'elemento distintivo fondamentale
The defining feature of the NMRV-E090 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.
⚙ Heavy Industrial Instrumented Drive
The NMRV-E090 is the standard choice for municipal sludge thickener instrumented drives where a 5.5 kW IEC motor provides the drive power and the tail shaft encoder delivers continuous rotation confirmation to SCADA.
◯ Same Torque as Standard NMRV090
The NMRV-E090 delivers identical maximum output torque (7,306 N·m) to the standard NMRV090, 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.
🅆 Codificatore e feedback pronti
L'albero di uscita posteriore fornisce un punto di connessione diretto per encoder rotativi, tachigeneratori e generatori di impulsi che monitorano la velocità dell'albero a vite senza fine nei sistemi di controllo del movimento a circuito chiuso, eliminando staffe per encoder esterne e componenti di accoppiamento.
🚫 IP54 — Integrità a doppia guarnizione
Sia l'alesaggio di uscita principale che l'uscita dell'albero di coda sono sigillati con guarnizioni a labbro a doppio contatto, mantenendo la protezione IP54 in tutte le configurazioni di montaggio senza perdite d'olio in corrispondenza delle interfacce dell'albero.
🏭 Scenari applicativi
💧 Sludge Thickener Rotation Monitoring
Heavy industrial NMRV-E090 worm gearbox for municipal sludge thickeners where the tail shaft provides continuous rotation confirmation to the SCADA system, alerting operators instantly to rake stall events.
⚙ Chemical Reactor Feedback Drive
High-torque worm gear reducer with tail output shaft for chemical reactor agitator drives where the tail shaft encoder monitors worm shaft speed and feeds back to a process control system.
🍲 Mining Conveyor Instrumentation
Aluminium worm gearbox with tail shaft for underground mining conveyor take-up drives where the tail-mounted tachometer provides belt-speed data to the mine-wide monitoring and safety system.
📥 Port Conveyor Supervision
Corrosion-resistant worm gearmotor with tail shaft for port bulk material conveyor drives where the tail shaft speed signal confirms conveyor motion to the port operations control room.
🔎 Guida alla selezione
Worked Example — Sludge Thickener SCADA
Required: NMRV-E090 at i=80 driving a sludge thickener at 18 r/min with SCADA rotation confirmation. Output torque from table = 6,783 N·m. Motor: 4.0 kW, IEC 100/112B14. Tail shaft: 100 PPR pulse counter, 35 mm bore. ✅ NMRV-E090-80-100/112B14 selected.
⚖ NMRV-E090 vs Standard NMRV090
| Caratteristica | EP-NMRV-E090 (with Tail Shaft) | EP-NMRV090 (Standard) |
|---|---|---|
| Albero di uscita posteriore | ✅ Sì — direzione del verme | NO |
| Montaggio encoder/feedback | Direttamente sull'albero di coda | Richiede una staffa esterna |
| Azionamento a doppio carico | Sì — principale + coda | No, solo uscita singola |
| Coppia di uscita principale | 7,306 N·m | 7,306 N·m |
| Dimensioni dell'abitazione | Leggermente più lungo (sporgenza dell'albero di coda) | Lunghezza standard |
| IEC Flange Input | Yes — standard | Yes — standard |
NMRV-E090 Main Output Shaft Dimensions
| G1 (mm) | K1 (mm) | L/DZ (mm) | L1/SZ (mm) | b2 (mm) | d h6 (mm) | Keyway |
|---|---|---|---|---|---|---|
| 140 | 154 | 234 | 309 | 10 | 35 | M12 |
❓ Domande frequenti
What is the tail output shaft on the EP-NMRV-E090 and what is it used for?
The tail output shaft on the NMRV-E090 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-E090?
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 7,306 N·m, identical to the standard NMRV090.
What encoder types are compatible with the NMRV-E090 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-E090?
The NMRV-E090 accepts the following IEC input flanges: 80B14, 90B5, 90B14, 100/112B14. This covers the standard motor frame range for the 5.5 kW power class. Servo and stepper motor adaptor plates available on request.
Can the NMRV-E090 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.
⭐ Recensioni dei clienti
★★★★★
“Our municipal sludge thickener NMRV-E090 tail shaft pulse counters confirmed zero-stall operation through twelve months of continuous duty. The SCADA integration meant our operators could confirm rake rotation from the control room rather than inspecting each thickener manually.”
James S. — Asset Engineer, Water Authority 🇦🇺 Australia (WA)
★★★★★
“We use the NMRV-E090 on our bitumen reactor agitator drive. The tail-shaft tachometer feeds back to our DCS and we monitor agitator RPM remotely. The integrated design saved us the cost and complexity of an external encoder mounting assembly.”
Hendrik V. — Production Manager, Road Products 🇸🇦 South Africa
★★★★☆
“The NMRV-E090 drives our underground mine conveyor. The tail shaft rotation sensor integrates into our mine safety PLC and provides emergency-stop interlock signals. Exactly the right product for instrumented underground drives.”
Steve K. — Mining Engineer, Coal Mine 🇦🇺 Australia (NSW)
⚙ Accessori e prodotti compatibili
⚡ Motori IEC (B5/B14)
Motori CA standard con flangia IEC compatibile. Sono disponibili versioni per inverter VFD per il controllo della velocità variabile.
🔗 Kit albero di uscita
Monoblocco pieno (DZ), a doppia estremità (SZ), flangia di uscita (F), flangia cava (FL) — tutte con tolleranza H7/h6 e scanalature per chiavetta standard.
🔨 Bracci e staffe di torsione
Bracci di reazione di coppia in acciaio per configurazioni con montaggio su albero; piastre di fissaggio per orientamenti B3/B6.
🔒 Kit di guarnizioni e sfiati
Kit di guarnizioni di ricambio, tappi di sfiato e tappi di scarico magnetici per intervalli di manutenzione prolungati.
Request a Quote for EP-NMRV-E090
Our engineering team will confirm the IEC flange, ratio, and SCADA encoder specification for your heavy industrial instrumented drive application.
IL EP-NMRV-E090 aluminium worm gearbox combines the bore-input IEC flange convenience of the NMRV090 with an additional worm-direction tail output shaft. Centre distance 090 mm, ratios 5 to 100, input power up to 5.5 kW, max output torque 7,306 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.
