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EP-NRV-E150 Aluminium Worm Gearbox

O EP-NRV-E150 aluminium worm gearbox combines a solid shaft input (no IEC flange) with an additional worm-direction tail output shaft. Centre distance 150 mm, ratios 5 to 100, input power up to 15 kW, max output torque 16,508 N·m. The tail shaft enables simultaneous encoder feedback, safety interlock monitoring, or auxiliary drive — the ideal instrumented shaft-input worm gearbox for chain-driven closed-loop agricultural, industrial, and mining drive systems.

Tanım

EP-NRV-E150 — Shaft-Input Aluminium Worm Gearbox with Tail Output Shaft

EP-NRV-E150 shaft-input aluminium worm gearbox with tail output shaft

Technical Specifications — EP-NRV-E150

NRV-E150 worm gearbox dimension drawing shaft input tail output shaft

Parametre Değer
Seri NRV-E (Katı Mil Girişi, Flanşsız, Sonsuz Dişli Yönlü Kuyruk Çıkış Mili)
Merkez Mesafesi 150 mm
İndirgeme Oranları 5, 7.5, 10, 15, 20, 25, 30, 40, 50, 60, 80, 100
Nominal Giriş Gücü Up to 15 kW
Çıkış Hızı Aralığı 14 ila 280 dev/dak (1400 dev/dak giriş hızında)
Maksimum Çıkış Torku 16,508 N·m
Giriş Yapılandırması Katı şaft girişi (IEC flanşı yok) + sonsuz dişli yönlü kuyruk çıkış şaftı
Giriş Mili Sağlam kamalı şaft girişi
Kuyruk Çıkış Mili Sonsuz vida yönü (sonsuz vida miliyle aynı eksende, karşı uç)
Konut Malzemesi Dökme alüminyum alaşımı
Sonsuz Dişli Çark Malzemesi Fosfor bronzu
Sonsuz Dişli Mil Malzemesi 20CrMnTi alaşımlı çelik, yüzey sertleştirilmiş, hassas taşlanmış.
Çıkış Delik Çapı 50 mm H7 with keyway
Yağlama ISO VG 220 şanzıman yağı (fabrika dolumu)
Montaj Konumları B3, B6, B7, B8, V5, V6
Koruma Sınıfı IP54
Ortam Sıcaklığı -10°C ila +40°C

NRV-E150 Performance Table (15 kW / 1400 r/min)

Oran (i) Çıkış Hızı (devir/dakika) Çıkış Torku (N·m) Hizmet Faktörü (fs)
7.5 187 6,962 1.7
10 140 7,663 1.3
15 93 8,771 0.9
20 70 9,654 1.0
25 56 10,400 0.8
30 47 11,051 1.3
40 35 12,163 1.3
50 28 13,103 1.0
60 23 13,924 0.8
80 18 15,325 1.0
100 14 16,508 0.8

✅ Temel Özellikler ve Benzersiz Avantajlar

🔗 Sonsuz Dişli Yönlü Kuyruk Çıkış Mili — Temel Farklılaştırıcı Özellik

The defining feature of the NRV-E150 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.

★ 15 kW Chain + Maximum Encoder Output

The NRV-E150 is the flagship shaft-input worm gearbox with tail shaft, accepting 15 kW chain or belt input while providing the highest radial load capacity (18,000 N) and tail shaft output in the NRV-E series.

◯ Same Torque as Standard NRV150

The NRV-E150 delivers identical maximum output torque (16,508 N·m) to the standard NRV150, 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.

🅆 Kodlayıcı ve Geri Besleme Hazır

Kuyruk çıkış mili, kapalı devre hareket kontrol sistemlerinde sonsuz dişli milinin hızını izleyen döner kodlayıcılar, takojeneratörler ve darbe üreteçleri için doğrudan bir bağlantı noktası sağlar ve harici kodlayıcı braketleri ve bağlantı donanımlarını ortadan kaldırır.

🚫 IP54 — Çift Conta Bütünlüğü

Hem ana çıkış deliği hem de kuyruk mili çıkışı, çift temaslı dudak contalarıyla kapatılarak, her iki mil arayüzünde de yağ sızıntısı olmadan tüm montaj yönlerinde IP54 koruma seviyesi korunmaktadır.

NRV-E150 internal worm gearbox assembly tail output shaft

🏭 Uygulama Senaryoları

🚢 Port Crane Hoist with Encoder

Flagship NMRV-E150 worm gearbox for heavy port crane hoist chain drives where the tail shaft mounts a high-resolution encoder providing precise hoist position feedback to the crane management system.

📥 Bulk Conveyor SCADA Monitoring

Maximum-torque worm gear reducer with tail output shaft for bulk material handling conveyor head-end drives where the tail shaft speed signal monitors tonnage throughput in real time.

⚙ Large Chemical Plant DCS Integration

Flagship aluminium worm gearbox with tail shaft for large polymer reactor agitator drives where the tail encoder feeds into the plant DCS providing real-time agitator speed verification.

💧 Primary Treatment Monitoring

NMRV-E150 worm gearbox for large-diameter primary clarifier rake drives where the tail shaft pulse counter provides the water authority operations centre with continuous rake-rotation confirmation.

NMRV-E150 flagship worm gearbox tail shaft port crane encoder position feedback

🔎 Seçim Kılavuzu

Worked Example — Port Throughput Tracking

Required: NRV-E150 at i=80, chain-driven from 15 kW diesel engine, tail shaft to tonnage tracking encoder. Output speed = 18 r/min, torque = 15,325 N·m. Tail shaft: 360 PPR pulse encoder, 50 mm bore. ✅ NRV-E150-80 selected.

⚖ NRV-E150 vs Standard NRV150

Özellik EP-NRV-E150 (with Tail Shaft) EP-NRV150 (Standard)
Kuyruk Çıkış Mili ✅ Evet — solucan yönü HAYIR
Kodlayıcı / Geri Besleme Montajı Kuyruk miline doğrudan Harici braket gerektirir.
Çift Yük Tahrik Sistemi Evet — ana + kuyruk Hayır — yalnızca tek çıkış
Ana Çıkış Torku 16,508 N·m 16,508 N·m
Konut Ölçüleri Biraz daha uzun (kuyruk şaftı çıkıntısı) Standart uzunluk
Şaft Girişi Evet — sağlam kamalı şaft Evet — sağlam kamalı şaft

NRV-E150 Main Output Shaft Dimensions

G1 (mm) K1 (mm) L/DZ (mm) L1/SZ (mm) b2 (mm) d h6 (mm) Anahtar yuvası
200 187 297 374 14 50 M16

NRV-E150 output shaft dimensions DZ SZ

❓ Sıkça Sorulan Sorular

What is the tail output shaft on the EP-NRV-E150 and how is it different from the main output?

The tail shaft on the NRV-E150 exits the housing in the worm-direction axis (opposite end of the worm shaft), while the main output bore is perpendicular (90 degrees) to the worm axis. The tail shaft is driven off the worm shaft end and is used for encoder mounting, tachometer connection, or light auxiliary drive, while the main output delivers the full 16,508 N·m load torque.

Does the tail shaft reduce the main output torque of the NRV-E150?

No. The tail shaft draws only the small torque needed for its connected device. The main output retains the full 16,508 N·m rating, identical to the standard NRV150.

What is the input shaft specification for the NRV-E150?

The NRV-E150 has a solid keyed input shaft (no IEC flange). The shaft diameter matches the equivalent NMRV150 bore input diameter. It accepts chain sprockets, belt pulleys, and rigid couplings. A bilateral (double-ended) input shaft is standard; single-end configuration available on request.

What encoder types can be mounted on the NRV-E150 tail shaft?

Any standard keyed rotary encoder with the matching bore diameter can be mounted on the NRV-E150 tail shaft: incremental (5V–24V, 100–10,000 PPR), SSI absolute, or resolver-type. Confirm the encoder bore size and keyway before ordering. The tail shaft key dimensions match the catalogue DZ shaft specification for NMRV-E150.

Can the NRV-E150 be used for closed-loop speed control in a chain-driven system?

Yes. The NRV-E150 is the ideal solution for chain-driven systems requiring closed-loop speed feedback. The chain drives the solid input shaft; the main output drives the load; and the tail shaft mounts an encoder that feeds speed/position data back to the controller. This eliminates the need for a separate encoder mounting bracket or a second independent encoder drive arrangement.

⭐ Müşteri Yorumları

★★★★★

“Our port grain conveyor head-end uses NRV-E150 chain-driven from our central diesel engine. The tail-shaft high-resolution encoder feeds our terminal tonnage tracking system with belt-speed data for automatic throughput calculation. Extremely reliable after 16 months.”

Tony V. — Terminal Engineer, Grain Export Port 🇦🇺 Australia (WA)

★★★★★

“We use four NRV-E150 units on our offshore crane hoist chain drives. The tail-shaft encoders provide hoist position feedback to our crane management system. The stainless shaft option eliminated corrosion that affected our previous cast-iron reducer encoders within 12 months.”

Anders L. — Mechanical Engineer, Offshore Platform 🇳🇴 Norway

★★★★☆

“The NRV-E150 drives our primary clarifier rake chain via diesel engine. The tail-shaft pulse counter confirms rake rotation to our water authority SCADA and automatically triggers a maintenance alert if rake speed drops below the design value.”

Sarah M. — Water Infrastructure Engineer, City Authority 🇦🇺 Australia (QLD)

⚙ Aksesuarlar ve Uyumlu Ürünler

⚡ IEC Motorları (B5/B14)

IEC flanşına uygun standart AC motorlar. Değişken hız kontrolü için VFD inverter uyumlu versiyonları mevcuttur.

🔗 Çıkış Mili Kitleri

Tek katı (DZ), çift uçlu (SZ), çıkış flanşı (F), içi boş flanş (FL) — tümü standart kama yuvalı H7/h6 toleransındadır.

🔨 Tork Kolları ve Braketler

Şaft montajlı konfigürasyonlar için çelik tork reaksiyon kolları; B3/B6 yönlendirmeleri için ayak montaj plakaları.

🔒 Conta ve Havalandırma Kitleri

Uzun servis aralıkları için yedek dudak contası kitleri, havalandırmalı tahliye tapaları ve manyetik tahliye tapaları.

Ever Power sonsuz dişli çark üretim tesisi

Enquire About EP-NRV-E150

The NRV-E150 is our flagship shaft-input instrumented worm gearbox. Our engineers will confirm the chain drive specification, radial load, and encoder bore for your application.

📧 Fiyat Teklifi İsteyin🏭 Ever Power Hakkında

📧 satış@nmrv063gearbox.com

O EP-NRV-E150 aluminium worm gearbox combines a solid shaft input (no IEC flange) with an additional worm-direction tail output shaft. Centre distance 150 mm, ratios 5 to 100, input power up to 15 kW, max output torque 16,508 N·m. The tail shaft enables simultaneous encoder feedback, safety interlock monitoring, or auxiliary drive — the ideal instrumented shaft-input worm gearbox for chain-driven closed-loop agricultural, industrial, and mining drive systems.