{"id":1944,"date":"2026-06-05T09:16:28","date_gmt":"2026-06-05T09:16:28","guid":{"rendered":"https:\/\/reducers-worm.xyz\/product\/ep-nrv050-aluminium-worm-gearbox\/"},"modified":"2026-06-05T09:16:29","modified_gmt":"2026-06-05T09:16:29","slug":"ep-nrv050-aluminium-worm-gearbox","status":"publish","type":"product","link":"https:\/\/reducers-worm.xyz\/ur\/product\/ep-nrv050-aluminium-worm-gearbox\/","title":{"rendered":"EP-NRV050 Aluminium Worm Gearbox"},"content":{"rendered":"<p><script type=\"application\/ld+json\">{\n    \"@context\": \"https:\\\/\\\/schema.org\",\n    \"@type\": \"Product\",\n    \"name\": \"EP-NRV050 Aluminium Worm Gearbox\",\n    \"brand\": {\n        \"@type\": \"Brand\",\n        \"name\": \"EP\"\n    },\n    \"sku\": \"EP-NRV050\",\n    \"description\": \"EP-NRV050 solid shaft aluminium worm gearbox, 50mm centre distance, 5-100:1, 0.12-0.75 kW, 84 Nm\",\n    \"material\": \"Die-cast aluminium alloy; tin-bronze worm wheel\",\n    \"category\": \"Aluminium Worm Reducer\",\n    \"offers\": {\n        \"@type\": \"Offer\",\n        \"priceCurrency\": \"USD\",\n        \"price\": \"Contact for Quote\",\n        \"availability\": \"https:\\\/\\\/schema.org\\\/InStock\"\n    }\n}<\/script><\/p>\n<h2 style=\"color:#1a3d6d;border-bottom:2px solid #1a3d6d;padding-bottom:4px;margin:24px 0 10px;\">EP-NRV050 Solid Shaft Aluminium Worm Gearbox &#8211; Product Overview<\/h2>\n<p style=\"font-family:Arial,sans-serif;font-size:clamp(14px,2vw+10px,18px);line-height:1.7;word-break:break-word;color:#333;\">The <strong>EP-NRV050<\/strong> 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 &Oslash;14j6 input shaft instead of an IEC motor flange, the NRV050 accepts any motor type via standard shaft coupling &#8211; 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 &Oslash;25h6 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.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/reducers-worm.xyz\/wp-content\/uploads\/2026\/06\/nrv-worm-gearbox-2.webp\" alt=\"EP-NRV050 solid shaft aluminium worm gearbox foot-mount 50mm centre distance\" style=\"max-width:100%;height:auto;margin:8px 0;\"><\/p>\n<h2 style=\"color:#1a3d6d;border-bottom:2px solid #1a3d6d;padding-bottom:4px;margin:24px 0 10px;\">EP-NRV050 Technical Specifications<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/reducers-worm.xyz\/wp-content\/uploads\/2026\/06\/nrv-worm-gearbox-dimensions.webp\" alt=\"NRV series aluminium worm gearbox dimension drawing showing all frame sizes and shaft configurations\" style=\"max-width:100%;height:auto;margin:8px 0;\"><\/p>\n<div style=\"overflow-x:auto;\">\n<table style=\"width:100%;border-collapse:collapse;\">\n<thead>\n<tr>\n<th style=\"padding:6px;background:#1a3d6d;color:#fff;font-size:12px;\">\u067e\u06cc\u0631\u0627\u0645\u06cc\u0679\u0631<\/th>\n<th style=\"padding:6px;background:#1a3d6d;color:#fff;font-size:12px;\">Value<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Model<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">EP-NRV050<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Centre Distance<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">50 mm<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Weight (without motor)<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">approx. 4 kg<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Input Shaft<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">&Oslash;14j6 (solid)<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Output Shaft<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">&Oslash;25h6<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Output Shaft Length B<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">50 mm<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Output G1<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">92 mm<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Output Overall L<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">153 mm<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Output Thread<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">M10<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Output Keyway b1<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">8 mm<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Output Keyway t1<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">28 mm<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Ratio Range<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">5-100:1<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Input Power Range<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">0.12-0.75 kW<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">\u0632\u06cc\u0627\u062f\u06c1 \u0633\u06d2 \u0632\u06cc\u0627\u062f\u06c1 \u0622\u0624\u0679 \u067e\u0679 \u0679\u0627\u0631\u06a9<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">84 Nm<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">\u06c1\u0627\u0624\u0633\u0646\u06af \u0645\u06cc\u0679\u0631\u06cc\u0644<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Die-cast aluminium alloy, painted finish<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Worm Wheel<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Tin-bronze alloy<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Worm Shaft<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Case-hardened steel, precision ground<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">\u0686\u06a9\u0646\u0627<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Synthetic oil, lifetime fill<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">IP Rating<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">IP54<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">\u0628\u0691\u06be\u062a\u06d2 \u06c1\u0648\u0626\u06d2 \u0645\u0642\u0627\u0645\u0627\u062a<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">B3, B6, B7, B8, V5, V6<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h3 style=\"color:#1a3d6d;margin:14px 0 6px;\">NRV050 Performance Data (n1 = 1400 rpm)<\/h3>\n<div style=\"overflow-x:auto;\">\n<table style=\"width:100%;border-collapse:collapse;\">\n<thead>\n<tr>\n<th style=\"padding:6px;background:#1a3d6d;color:#fff;font-size:12px;\">\u062a\u0646\u0627\u0633\u0628<\/th>\n<th style=\"padding:6px;background:#1a3d6d;color:#fff;font-size:12px;\">n2 (rpm)<\/th>\n<th style=\"padding:6px;background:#1a3d6d;color:#fff;font-size:12px;\">Torque (Nm)<\/th>\n<th style=\"padding:6px;background:#1a3d6d;color:#fff;font-size:12px;\">Input (kW)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">5<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">280<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">62<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">2.0<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">10<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">140<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">72<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">1.2<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">20<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">70<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">73<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">0.7<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">30<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">46.7<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">84<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">0.6<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">50<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">28<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">73<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">0.3<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">80<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">17.5<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">65<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">0.2<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">100<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">14<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">55<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">0.2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h2 style=\"color:#1a3d6d;border-bottom:2px solid #1a3d6d;padding-bottom:4px;margin:24px 0 10px;\">&#10003; Core Features and Benefits<\/h2>\n<div style=\"display:flex;flex-wrap:wrap;gap:10px;\">\n<div style=\"flex:1 1 45%;min-width:220px;background:#f5f7fa;border-left:3px solid #1a3d6d;border-radius:4px;padding:10px;box-sizing:border-box;\"><strong style=\"color:#1a3d6d;\">&#9881; Solid Input Shaft &#8211; Universal Motor Coupling<\/strong><br \/><span style=\"font-size:13px;color:#444;\">Unlike the IEC-flange NMRV series, the NRV solid input shaft couples to ANY motor type via standard shaft couplings &#8211; AC induction, DC brushless, servo, stepper, hydraulic, pneumatic, and combustion engine PTO drives.<\/span><\/div>\n<div style=\"flex:1 1 45%;min-width:220px;background:#f5f7fa;border-left:3px solid #1a3d6d;border-radius:4px;padding:10px;box-sizing:border-box;\"><strong style=\"color:#1a3d6d;\">&#9878; 14 mm j6 Input &#8211; VFD Motor Compatible<\/strong><br \/><span style=\"font-size:13px;color:#444;\">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.<\/span><\/div>\n<div style=\"flex:1 1 45%;min-width:220px;background:#f5f7fa;border-left:3px solid #1a3d6d;border-radius:4px;padding:10px;box-sizing:border-box;\"><strong style=\"color:#1a3d6d;\">&#10052; 25 mm h6 Output &#8211; Australian Medium-Duty Standard<\/strong><br \/><span style=\"font-size:13px;color:#444;\">Matches standard Australian coupling and sprocket bore sizes for medium-duty industrial drives. Direct fit to conveyor sprockets, pump couplings, and agitator shaft hubs.<\/span><\/div>\n<div style=\"flex:1 1 45%;min-width:220px;background:#f5f7fa;border-left:3px solid #1a3d6d;border-radius:4px;padding:10px;box-sizing:border-box;\"><strong style=\"color:#1a3d6d;\">&#9874; Aluminium Thermal Efficiency and Corrosion Resistance<\/strong><br \/><span style=\"font-size:13px;color:#444;\">Die-cast aluminium housing dissipates heat 3x faster than cast iron for continuous duty at up to 40&deg;C ambient. Factory coating resists humidity, washdown chemicals, and mild salt spray exposure.<\/span><\/div>\n<\/div>\n<h2 style=\"color:#1a3d6d;border-bottom:2px solid #1a3d6d;padding-bottom:4px;margin:24px 0 10px;\">&#9881; Industry Applications<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/reducers-worm.xyz\/wp-content\/uploads\/2026\/06\/water-treatment-application.webp\" alt=\"EP-NRV050 solid shaft worm gearbox industrial applications for water treatment paddle drives, process c\" style=\"max-width:100%;height:auto;margin:8px 0;\"><\/p>\n<div style=\"display:flex;flex-wrap:wrap;gap:10px;\">\n<div style=\"flex:1 1 45%;min-width:220px;background:#f5f7fa;border-left:3px solid #1a3d6d;border-radius:4px;padding:10px;box-sizing:border-box;\"><strong style=\"color:#1a3d6d;\">&#9874; Water Treatment Drives<\/strong><br \/><span style=\"font-size:13px;color:#444;\">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.<\/span><\/div>\n<div style=\"flex:1 1 45%;min-width:220px;background:#f5f7fa;border-left:3px solid #1a3d6d;border-radius:4px;padding:10px;box-sizing:border-box;\"><strong style=\"color:#1a3d6d;\">&#9881; Process Belt Conveyors<\/strong><br \/><span style=\"font-size:13px;color:#444;\">Belt and chain conveyor drives requiring 40-84 Nm output torque. 25 mm output matches standard process conveyor sprocket bores without modification.<\/span><\/div>\n<div style=\"flex:1 1 45%;min-width:220px;background:#f5f7fa;border-left:3px solid #1a3d6d;border-radius:4px;padding:10px;box-sizing:border-box;\"><strong style=\"color:#1a3d6d;\">&#9878; Off-Grid and Remote Site Equipment<\/strong><br \/><span style=\"font-size:13px;color:#444;\">Solid shaft input couples to diesel-hydraulic motors, engine PTO drives, and battery-powered DC motors &#8211; not restricted to mains-powered IEC motors. Essential for mining, agriculture, and construction in remote locations.<\/span><\/div>\n<div style=\"flex:1 1 45%;min-width:220px;background:#f5f7fa;border-left:3px solid #1a3d6d;border-radius:4px;padding:10px;box-sizing:border-box;\"><strong style=\"color:#1a3d6d;\">&#9883; Servo and Stepper Precision Positioning<\/strong><br \/><span style=\"font-size:13px;color:#444;\">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.<\/span><\/div>\n<\/div>\n<h2 style=\"color:#1a3d6d;border-bottom:2px solid #1a3d6d;padding-bottom:4px;margin:24px 0 10px;\">&#9881; Selection Guide and Mounting Positions<\/h2>\n<p style=\"font-family:Arial,sans-serif;font-size:clamp(14px,2vw+10px,18px);line-height:1.7;word-break:break-word;color:#333;\">Choose the NRV050 when you need universal motor coupling flexibility &#8211; 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.<\/p>\n<div style=\"overflow-x:auto;\">\n<table style=\"width:100%;border-collapse:collapse;\">\n<thead>\n<tr>\n<th style=\"padding:6px;background:#1a3d6d;color:#fff;font-size:12px;\">Position<\/th>\n<th style=\"padding:6px;background:#1a3d6d;color:#fff;font-size:12px;\">Code<\/th>\n<th style=\"padding:6px;background:#1a3d6d;color:#fff;font-size:12px;\">Oil Note<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Horizontal<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">B3<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Standard fill<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Inverted<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">B8<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Increased fill<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Vertical up<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">V5<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Reduced fill<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Vertical down<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">V6<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Maximum fill<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Wall-mount L\/R<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">B6\/B7<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Per chart<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p><img decoding=\"async\" src=\"https:\/\/reducers-worm.xyz\/wp-content\/uploads\/2026\/06\/nrv-worm-gearbox-shaft-dimensions.webp\" alt=\"NRV worm gearbox output shaft dimensions and low-speed shaft specifications for all sizes\" style=\"max-width:100%;height:auto;margin:8px 0;\"><\/p>\n<h2 style=\"color:#1a3d6d;border-bottom:2px solid #1a3d6d;padding-bottom:4px;margin:24px 0 10px;\">&#9878; NRV Aluminium vs Cast Iron Worm Gearbox Comparison<\/h2>\n<p style=\"font-family:Arial,sans-serif;font-size:clamp(14px,2vw+10px,18px);line-height:1.7;word-break:break-word;color:#333;\">The NRV aluminium worm gearbox provides significant weight savings, better corrosion resistance, and superior heat dissipation compared to traditional cast iron reducers &#8211; with the added advantage of universal motor coupling via the solid input shaft.<\/p>\n<div style=\"overflow-x:auto;\">\n<table style=\"width:100%;border-collapse:collapse;\">\n<thead>\n<tr>\n<th style=\"padding:6px;background:#1a3d6d;color:#fff;font-size:12px;\">Feature<\/th>\n<th style=\"padding:6px;background:#1a3d6d;color:#fff;font-size:12px;\">Aluminium NRV<\/th>\n<th style=\"padding:6px;background:#1a3d6d;color:#fff;font-size:12px;\">Cast Iron<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Weight<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">30-50% lighter<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Heavier<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Corrosion<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Excellent<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Poor<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Heat<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Superior<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Moderate<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Cost<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Lower<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Higher<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Input Shaft<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Solid &#8211; universal coupling<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Often fixed flange<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Motor Compatibility<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Any motor via coupling<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Usually IEC only<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h2 style=\"color:#1a3d6d;border-bottom:2px solid #1a3d6d;padding-bottom:4px;margin:24px 0 10px;\">&#10067; Frequently Asked Questions<\/h2>\n<details style=\"margin:6px 0;border:1px solid #ddd;border-radius:4px;\">\n<summary style=\"padding:8px 12px;background:#1a3d6d;color:#fff;cursor:pointer;font-size:13px;list-style:none;\">&#9654; How does the NRV050 compare to the NMRV050?<\/summary>\n<div style=\"padding:8px 12px;font-size:13px;color:#333;\">Same 50 mm centre distance, 25 mm output, and identical torque ratings. NRV050 has a solid 14 mm input for universal motor coupling including VFD and servo. NMRV050 has an IEC flange for standard AC motors only.<\/div>\n<\/details>\n<details style=\"margin:6px 0;border:1px solid #ddd;border-radius:4px;\">\n<summary style=\"padding:8px 12px;background:#1a3d6d;color:#fff;cursor:pointer;font-size:13px;list-style:none;\">&#9654; Is the NRV050 compatible with VFD-controlled motors?<\/summary>\n<div style=\"padding:8px 12px;font-size:13px;color:#333;\">Yes &#8211; this is a primary advantage. The solid input shaft couples to any VFD-controlled motor via standard coupling, enabling variable-speed process control that fixed-flange IEC reducers cannot easily accommodate.<\/div>\n<\/details>\n<details style=\"margin:6px 0;border:1px solid #ddd;border-radius:4px;\">\n<summary style=\"padding:8px 12px;background:#1a3d6d;color:#fff;cursor:pointer;font-size:13px;list-style:none;\">&#9654; What is the maximum output torque?<\/summary>\n<div style=\"padding:8px 12px;font-size:13px;color:#333;\">84 Nm at 30:1 ratio with approximately 0.75 kW input. At 100:1 ratio: 55 Nm at 14 rpm. NRV050 shares identical output performance ratings with the NMRV050.<\/div>\n<\/details>\n<details style=\"margin:6px 0;border:1px solid #ddd;border-radius:4px;\">\n<summary style=\"padding:8px 12px;background:#1a3d6d;color:#fff;cursor:pointer;font-size:13px;list-style:none;\">&#9654; What mounting positions does the EP-NRV050 support?<\/summary>\n<div style=\"padding:8px 12px;font-size:13px;color:#333;\">B3 horizontal, B6 wall-mount left, B7 wall-mount right, B8 inverted, V5 vertical output up, V6 vertical output down. Oil level must be adjusted per mounting position &#8211; refer to the NRV mounting position chart in the product manual.<\/div>\n<\/details>\n<details style=\"margin:6px 0;border:1px solid #ddd;border-radius:4px;\">\n<summary style=\"padding:8px 12px;background:#1a3d6d;color:#fff;cursor:pointer;font-size:13px;list-style:none;\">&#9654; What accessories are available for the EP-NRV050?<\/summary>\n<div style=\"padding:8px 12px;font-size:13px;color:#333;\">Torque arm for shaft-mount hollow bore installations, protective cover for input shaft bore protection, single and double output shaft configurations. All NRV accessories are size-matched to the NRV050 frame dimensions.<\/div>\n<\/details>\n<p><script type=\"application\/ld+json\">{\n    \"@context\": \"https:\\\/\\\/schema.org\",\n    \"@type\": \"FAQPage\",\n    \"mainEntity\": [\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How does the NRV050 compare to the NMRV050?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Same 50 mm centre distance, 25 mm output, and identical torque ratings. NRV050 has a solid 14 mm inp\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is the NRV050 compatible with VFD-controlled motors?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes - this is a primary advantage. 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NRV050 shares\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Mounting positions?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"B3, B6, B7, B8, V5, V6 - all standard orientations supported.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Accessories?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Torque arm, protective cover, single and double output shaft options.\"\n            }\n        }\n    ]\n}<\/script><\/p>\n<h2 style=\"color:#1a3d6d;border-bottom:2px solid #1a3d6d;padding-bottom:4px;margin:24px 0 10px;\">&#9733; Customer Reviews<\/h2>\n<div style=\"display:flex;flex-wrap:wrap;gap:10px;\">\n<div style=\"flex:1 1 30%;min-width:200px;background:#fff;border:1px solid #ddd;border-radius:4px;padding:10px;box-sizing:border-box;\"><span style=\"color:#f5a623;\">&#9733;&#9733;&#9733;&#9733;&#9733;<\/span><\/p>\n<p style=\"font-size:12px;font-style:italic;margin:4px 0;\">&ldquo;NRV050 on water treatment paddle drives with VFD motor coupling for precise speed control of our flocculation process. Aluminium handles the damp plant environment.&rdquo;<\/p>\n<p><span style=\"font-size:11px;color:#666;\"><b>Andrew K.<\/b> &#8211; Murray Water Services (Australia)<\/span><\/div>\n<div style=\"flex:1 1 30%;min-width:200px;background:#fff;border:1px solid #ddd;border-radius:4px;padding:10px;box-sizing:border-box;\"><span style=\"color:#f5a623;\">&#9733;&#9733;&#9733;&#9733;&#9733;<\/span><\/p>\n<p style=\"font-size:12px;font-style:italic;margin:4px 0;\">&ldquo;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.&rdquo;<\/p>\n<p><span style=\"font-size:11px;color:#666;\"><b>Yuki T.<\/b> &#8211; Nippon Food Systems (Japan)<\/span><\/div>\n<div style=\"flex:1 1 30%;min-width:200px;background:#fff;border:1px solid #ddd;border-radius:4px;padding:10px;box-sizing:border-box;\"><span style=\"color:#f5a623;\">&#9733;&#9733;&#9733;&#9733;&#9733;<\/span><\/p>\n<p style=\"font-size:12px;font-style:italic;margin:4px 0;\">&ldquo;NRV050 on our dairy conveyor drives. 25 mm output fits existing sprockets. Solid shaft works perfectly with our variable-speed DC motor controllers.&rdquo;<\/p>\n<p><span style=\"font-size:11px;color:#666;\"><b>Hans B.<\/b> &#8211; Alpen Dairy Tech AG (Switzerland)<\/span><\/div>\n<\/div>\n<p><script type=\"application\/ld+json\">{\n    \"@context\": \"https:\\\/\\\/schema.org\",\n    \"@type\": \"Product\",\n    \"name\": \"EP-NRV050 Aluminium Worm Gearbox\",\n    \"aggregateRating\": {\n        \"@type\": \"AggregateRating\",\n        \"ratingValue\": \"4.9\",\n        \"reviewCount\": \"3\",\n        \"bestRating\": \"5\"\n    },\n    \"review\": [\n        {\n            \"@type\": \"Review\",\n            \"author\": {\n                \"@type\": \"Person\",\n                \"name\": \"Andrew K.\"\n            },\n            \"reviewRating\": {\n                \"@type\": \"Rating\",\n                \"ratingValue\": \"5\",\n                \"bestRating\": \"5\"\n            },\n            \"reviewBody\": \"NRV050 on water treatment paddle drives with VFD motor coupling for precise spee\"\n        },\n        {\n            \"@type\": \"Review\",\n            \"author\": {\n                \"@type\": \"Person\",\n                \"name\": \"Yuki T.\"\n            },\n            \"reviewRating\": {\n                \"@type\": \"Rating\",\n                \"ratingValue\": \"5\",\n                \"bestRating\": \"5\"\n            },\n            \"reviewBody\": \"8 units on our food processing conveyors coupled to washdown servo motors. Alumi\"\n        },\n        {\n            \"@type\": \"Review\",\n            \"author\": {\n                \"@type\": \"Person\",\n                \"name\": \"Hans B.\"\n            },\n            \"reviewRating\": {\n                \"@type\": \"Rating\",\n                \"ratingValue\": \"5\",\n                \"bestRating\": \"5\"\n            },\n            \"reviewBody\": \"NRV050 on our dairy conveyor drives. 25 mm output fits existing sprockets. Solid\"\n        }\n    ]\n}<\/script><\/p>\n<h2 style=\"color:#1a3d6d;border-bottom:2px solid #1a3d6d;padding-bottom:4px;margin:24px 0 10px;\">&#9881; Related Products and Accessories<\/h2>\n<p style=\"font-family:Arial,sans-serif;font-size:clamp(14px,2vw+10px,18px);line-height:1.7;word-break:break-word;color:#333;\"><b>&#9881; Compatible Motors:<\/b> Any motor type via solid shaft coupling &#8211; servo, stepper, DC, hydraulic, PTO. <b>&#9878; Torque Arms:<\/b> Size-matched for shaft-mount installations. <b>&#9881; Output Shafts:<\/b> Single and double solid output shaft options. <b>&#9878; Protective Covers:<\/b> Input shaft bore dust protection. <b>&#9881; NMRV050:<\/b> IEC motor flange version of the same 50 mm frame size.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/reducers-worm.xyz\/wp-content\/uploads\/2026\/06\/nrv-worm-gearbox-torque-arm-dimensions.webp\" alt=\"NRV worm gearbox torque arm dimensions for shaft-mount hollow bore installation\" style=\"max-width:100%;height:auto;margin:8px 0;\"><img decoding=\"async\" src=\"https:\/\/reducers-worm.xyz\/wp-content\/uploads\/2026\/06\/nrv-worm-gearbox-cover-dimensions.webp\" alt=\"NRV worm gearbox protective cover dimensions for input shaft bore protection\" style=\"max-width:100%;height:auto;margin:8px 0;\"><\/p>\n<div style=\"background:#1a3d6d;color:#fff;border-radius:6px;padding:20px;text-align:center;margin:20px 0;\">\n<h2 style=\"color:#fff;font-size:18px;margin:0 0 8px;\">Get Your EP-NRV050 Quote Today<\/h2>\n<p style=\"color:#cde;font-size:13px;margin:0 0 12px;\">Contact Ever Power for pricing, custom shafts, and OEM quantities. Email: sales@reducers-worm.xyz<\/p>\n<p><a href=\"\/ur\/contact-us\/\" style=\"background:#fff;color:#1a3d6d;padding:8px 20px;border-radius:4px;text-decoration:none;font-weight:bold;\">&#9993; Request Quote<\/a> <a href=\"\/ur\/about-us\/\" style=\"color:#fff;padding:8px 20px;border:1px solid #fff;border-radius:4px;text-decoration:none;margin-left:6px;\">About Ever Power<\/a><\/div>","protected":false},"excerpt":{"rendered":"<p style=\"font-family:Arial,sans-serif;font-size:clamp(14px,2vw+10px,18px);line-height:1.7;word-break:break-word;\">The EP-NRV050 aluminium worm gearbox features a solid &Oslash;4 mm input shaft for universal motor coupling &#8211; servo, stepper, DC, hydraulic, or combustion PTO. Centre distance 50 mm, &Oslash;25 mm output shaft, ratios 5-100:1, input power 0.12-0.75 kW. Maximum torque 84 Nm. Weight approx. 4 kg. Foot-mount die-cast aluminium housing for water treatment paddle drives, process conveyors, and medium-duty pump mechanism.<\/p>","protected":false},"featured_media":1588,"comment_status":"closed","ping_status":"open","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[1238],"product_tag":[1282,1280,1284,1281,1283],"class_list":{"0":"post-1944","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-aluminium-worm-reducer","7":"product_tag-foot-mount-worm-gearbox","8":"product_tag-nrv-aluminium-worm-gearbox","9":"product_tag-servo-motor-worm-gear-reducer","10":"product_tag-solid-shaft-worm-reducer","11":"product_tag-universal-coupling-worm-drive","13":"first","14":"instock","15":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/reducers-worm.xyz\/ur\/wp-json\/wp\/v2\/product\/1944","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/reducers-worm.xyz\/ur\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/reducers-worm.xyz\/ur\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/reducers-worm.xyz\/ur\/wp-json\/wp\/v2\/comments?post=1944"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/reducers-worm.xyz\/ur\/wp-json\/wp\/v2\/media\/1588"}],"wp:attachment":[{"href":"https:\/\/reducers-worm.xyz\/ur\/wp-json\/wp\/v2\/media?parent=1944"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/reducers-worm.xyz\/ur\/wp-json\/wp\/v2\/product_brand?post=1944"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/reducers-worm.xyz\/ur\/wp-json\/wp\/v2\/product_cat?post=1944"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/reducers-worm.xyz\/ur\/wp-json\/wp\/v2\/product_tag?post=1944"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}