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EP-NRV-E075 Aluminium Worm Gearbox

O EP-NRV-E075 aluminium worm gearbox combines a solid shaft input (no IEC flange) 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, 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-E075 — Shaft-Input Aluminium Worm Gearbox with Tail Output Shaft

EP-NRV-E075 shaft-input aluminium worm gearbox with tail output shaft

Technical Specifications — EP-NRV-E075

NRV-E075 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 075 mm
İndirgeme Oranları 5, 7.5, 10, 15, 20, 25, 30, 40, 50, 60, 80, 100
Nominal Giriş Gücü Up to 4.0 kW
Çıkış Hızı Aralığı 14 ila 280 dev/dak (1400 dev/dak giriş hızında)
Maksimum Çıkış Torku 6,603 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 35 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-E075 Performance Table (4.0 kW / 1400 r/min)

Oran (i) Çıkış Hızı (devir/dakika) Çıkış Torku (N·m) Hizmet Faktörü (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

✅ Temel Özellikler ve Benzersiz Avantajlar

🔗 Sonsuz Dişli Yönlü Kuyruk Çıkış Mili — Temel Farklılaştırıcı Özellik

The defining feature of the NRV-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.

🌿 Heavy Chain + SCADA Integration

At 4.0 kW chain input, the NRV-E075 is the standard choice for heavily loaded agricultural chain drives requiring SCADA rotation monitoring — jam detection, bin-fill monitoring, and throughput tracking.

◯ Same Torque as Standard NRV075

The NRV-E075 delivers identical maximum output torque (6,603 N·m) to the standard NRV075, 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-E075 internal worm gearbox assembly tail output shaft

🏭 Uygulama Senaryoları

🌿 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.

NMRV-E075 high-torque worm gearbox tail shaft rotation monitoring

🔎 Seçim Kılavuzu

Worked Example — Sugarcane Conveyor Monitoring

Required: NRV-E075 at i=40, chain-driven from 3.0 kW PTO countershaft, tail shaft to SCADA rotation sensor. Output speed = 35 r/min, torque = 4,865 N·m. Tail shaft: inductive proximity sensor target, 28 mm bore. ✅ NRV-E075-40 selected.

⚖ NRV-E075 vs Standard NRV075

Özellik EP-NRV-E075 (with Tail Shaft) EP-NRV075 (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 6,603 N·m 6,603 N·m
Konut Ölçüleri Biraz daha uzun (kuyruk şaftı çıkıntısı) Standart uzunluk
Şaft Girişi Evet — sağlam kamalı şaft Evet — sağlam kamalı şaft

NRV-E075 Main Output Shaft Dimensions

G1 (mm) K1 (mm) L/DZ (mm) L1/SZ (mm) b2 (mm) d h6 (mm) Anahtar yuvası
120 123 192 247 8 28 M10

NRV-E075 output shaft dimensions DZ SZ

❓ Sıkça Sorulan Sorular

What is the tail output shaft on the EP-NRV-E075 and how is it different from the main output?

The tail shaft on the NRV-E075 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 6,603 N·m load torque.

Does the tail shaft reduce the main output torque of the NRV-E075?

No. The tail shaft draws only the small torque needed for its connected device. The main output retains the full 6,603 N·m rating, identical to the standard NRV075.

What is the input shaft specification for the NRV-E075?

The NRV-E075 has a solid keyed input shaft (no IEC flange). The shaft diameter matches the equivalent NMRV075 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-E075 tail shaft?

Any standard keyed rotary encoder with the matching bore diameter can be mounted on the NRV-E075 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-E075.

Can the NRV-E075 be used for closed-loop speed control in a chain-driven system?

Yes. The NRV-E075 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 sugarcane conveyor chain drives use NRV-E075 units. The tail-shaft rotation sensors feed our plant SCADA and we receive instant alerts if any conveyor section stops during harvest. The system has prevented two costly conveyor pile-up incidents this season.”

Barry F. — Maintenance Manager, Sugarcane Farm 🇦🇺 Australia (QLD)

★★★★★

“We use the NRV-E075 on our mobile concrete plant chain drive with a tail-shaft tachometer monitoring drum speed for our batching computer. The combined chain-input encoder-output design eliminated a separate encoder mounting assembly on each plant.”

Carlos E. — Plant Manager, Civil Construction 🇨🇴 Colombia

★★★★☆

“Six NRV-E075 units drive our grain auger system via central shaft chain. The tail-shaft encoders provide bin-fill calculations based on auger speed and our grain inventory system is now automated. Excellent integration of mechanical and electrical functions.”

Ian M. — Operations Manager, Grain Storage 🇦🇺 Australia (SA)

⚙ 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

Specify the EP-NRV-E075

Our team will confirm the input shaft, ratio, and SCADA sensor specification for your heavy chain-driven agricultural or industrial monitored drive.

📧 Fiyat Teklifi İsteyin🏭 Ever Power Hakkında

📧 satış@nmrv063gearbox.com

O EP-NRV-E075 aluminium worm gearbox combines a solid shaft input (no IEC flange) 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, safety interlock monitoring, or auxiliary drive — the ideal instrumented shaft-input worm gearbox for chain-driven closed-loop agricultural, industrial, and mining drive systems.