説明
EP-NRV050 Solid Shaft Aluminium Worm Gearbox – Product Overview
の EP-NRV050 is the crossover NRV solid-shaft worm gearbox for medium-duty industrial and water treatment drives, offering 25 mm output and VFD motor compatibility. With a solid Ø14j6 input shaft instead of an IEC motor flange, the NRV050 accepts any motor type via standard shaft coupling – servo motors, stepper motors, DC brushless, hydraulic motors, and even combustion engine PTO drives. This universal motor compatibility is the defining advantage of the NRV series over the IEC-flange-only NMRV series. At approx. 4 kg with 50 mm centre distance and Ø25h6 output shaft, it delivers up to 84 Nm output torque across ratios 5-100:1. The die-cast aluminium alloy housing provides corrosion resistance and thermal efficiency superior to cast iron while saving 30-50% in weight. Purpose-designed for water treatment paddle drives, process conveyors, and medium-duty pump mechanisms where VFD-controlled motors require the solid shaft input that IEC-flange reducers cannot provide.
EP-NRV050 Technical Specifications
| パラメータ | 価値 |
|---|---|
| モデル | EP-NRV050 |
| 中心距離 | 50mm |
| 重量（モーターを除く） | approx. 4 kg |
| Input Shaft | Ø14j6 (solid) |
| 出力軸 | Ø25h6 |
| Output Shaft Length B | 50mm |
| Output G1 | 92 mm |
| Output Overall L | 153 mm |
| Output Thread | M10 |
| Output Keyway b1 | 8 mm |
| Output Keyway t1 | 28 mm |
| 比率範囲 | 5-100:1 |
| Input Power Range | 0.12-0.75 kW |
| 最大出力トルク | 84 Nm |
| ハウジング材 | Die-cast aluminium alloy, painted finish |
| ウォームホイール | Tin-bronze alloy |
| ウォームシャフト | Case-hardened steel, precision ground |
| 潤滑 | Synthetic oil, lifetime fill |
| IPレーティング | IP54 |
| 取り付け位置 | B3、B6、B7、B8、V5、V6 |
NRV050 Performance Data (n1 = 1400 rpm)
| 比率 | n2 (rpm) | トルク（Nm） | 入力（kW） |
|---|---|---|---|
| 5 | 280 | 62 | 2.0 |
| 10 | 140 | 72 | 1.2 |
| 20 | 70 | 73 | 0.7 |
| 30 | 46.7 | 84 | 0.6 |
| 50 | 28 | 73 | 0.3 |
| 80 | 17.5 | 65 | 0.2 |
| 100 | 14 | 55 | 0.2 |
✓ 主な機能とメリット
Unlike the IEC-flange NMRV series, the NRV solid input shaft couples to ANY motor type via standard shaft couplings – AC induction, DC brushless, servo, stepper, hydraulic, pneumatic, and combustion engine PTO drives.
Solid input shaft couples to VFD-controlled motors for variable-speed process applications. The NRV050 is the standard choice when process speed control requires a motor type that does not have an IEC flange.
Matches standard Australian coupling and sprocket bore sizes for medium-duty industrial drives. Direct fit to conveyor sprockets, pump couplings, and agitator shaft hubs.
Die-cast aluminium housing dissipates heat 3x faster than cast iron for continuous duty at up to 40°C ambient. Factory coating resists humidity, washdown chemicals, and mild salt spray exposure.
⚙ 産業用途
Paddle drives, dosing mechanisms, and screw conveyor feeds in municipal and industrial water treatment. Solid shaft couples to VFD-controlled motors for precise speed control of flocculation processes.
Belt and chain conveyor drives requiring 40-84 Nm output torque. 25 mm output matches standard process conveyor sprocket bores without modification.
Solid shaft input couples to diesel-hydraulic motors, engine PTO drives, and battery-powered DC motors – not restricted to mains-powered IEC motors. Essential for mining, agriculture, and construction in remote locations.
Direct servo or stepper motor coupling via bellows or beam couplings for position-control applications. Achieves angular accuracy levels that IEC-flange worm reducers cannot match.
⚙ 選定ガイドと取り付け位置
Choose the NRV050 when you need universal motor coupling flexibility – servo, stepper, DC, hydraulic, or PTO. If your application uses only standard IEC AC motors, the NMRV050 with direct flange mount may offer a simpler installation. Both NRV and NMRV share identical output shaft specifications, torque ratings, and housing dimensions at each size.
| 位置 | コード | オイルノート |
|---|---|---|
| 水平 | B3 | 標準充填 |
| 反転 | B8 | 充填量の増加 |
| 垂直上 | V5 | 充填量を減らしました |
| 垂直下向き | V6 | 最大充填量 |
| 壁掛けL/R | B6/B7 | Per chart |
⚖ NRV Aluminium vs Cast Iron Worm Gearbox Comparison
The NRV aluminium worm gearbox provides significant weight savings, better corrosion resistance, and superior heat dissipation compared to traditional cast iron reducers – with the added advantage of universal motor coupling via the solid input shaft.
| 特徴 | Aluminium NRV | 鋳鉄 |
|---|---|---|
| 重さ | 30-50% ライター | 重い |
| 腐食 | 素晴らしい | 貧しい |
| Heat | 優れた | 適度 |
| 料金 | より低い | より高い |
| Input Shaft | Solid – universal coupling | Often fixed flange |
| Motor Compatibility | Any motor via coupling | Usually IEC only |
❓よくある質問
▶ How does the NRV050 compare to the NMRV050?
▶ Is the NRV050 compatible with VFD-controlled motors?
▶ What is the maximum output torque?
▶ What mounting positions does the EP-NRV050 support?
▶ What accessories are available for the EP-NRV050?
★お客様の声
“NRV050 on water treatment paddle drives with VFD motor coupling for precise speed control of our flocculation process. Aluminium handles the damp plant environment.”
アンドリュー・K. – マレー・ウォーター・サービス（オーストラリア）
“8 units on our food processing conveyors coupled to washdown servo motors. Aluminium handles the wet environment without corrosion. 25 mm output fits our sprockets directly.”
ユキT. – Nippon Food Systems (Japan)
“NRV050 on our dairy conveyor drives. 25 mm output fits existing sprockets. Solid shaft works perfectly with our variable-speed DC motor controllers.”
ハンス・B. – アルペン・デイリー・テックAG（スイス）
⚙関連製品およびアクセサリー
⚙ Compatible Motors: Any motor type via solid shaft coupling – servo, stepper, DC, hydraulic, PTO. ⚖ トルクアーム： Size-matched for shaft-mount installations. ⚙ Output Shafts: Single and double solid output shaft options. ⚖ Protective Covers: Input shaft bore dust protection. ⚙ NMRV050: IEC motor flange version of the same 50 mm frame size.
Get Your EP-NRV050 Quote Today
Contact Ever Power for pricing, custom shafts, and OEM quantities. Email: [email protected]
