{"id":3030,"date":"2026-06-02T10:00:59","date_gmt":"2026-06-02T10:00:59","guid":{"rendered":"https:\/\/gearboxesworm.xyz\/product\/ep-nrv040-aluminium-worm-gearbox-reducer-solid-shaft-input\/"},"modified":"2026-06-02T10:00:59","modified_gmt":"2026-06-02T10:00:59","slug":"ep-nrv040-aluminium-worm-gearbox-reducer-solid-shaft-input","status":"publish","type":"product","link":"https:\/\/gearboxesworm.xyz\/fa\/product\/ep-nrv040-aluminium-worm-gearbox-reducer-solid-shaft-input\/","title":{"rendered":"EP-NRV040 Aluminium Worm Gearbox Reducer \u2014 Solid Shaft Input"},"content":{"rendered":"<p><script type=\"application\/ld+json\">{\n    \"@context\": \"https:\\\/\\\/schema.org\\\/\",\n    \"@type\": \"Product\",\n    \"name\": \"EP-NRV040 Aluminium Worm Gearbox\",\n    \"brand\": {\n        \"@type\": \"Brand\",\n        \"name\": \"EP\"\n    },\n    \"sku\": \"EP-NRV040\",\n    \"description\": \"EP-NRV040 aluminium worm gearbox with solid 11 mm solid input shaft, 040 mm centre distance, 5\\u2013100:1 ratios, up to 400 Nm, IP65 sealed, die-cast aluminium housing. Ideal for shaft-coupled and belt\\\/chain-driven industrial applications.\",\n    \"material\": \"Die-cast aluminium alloy A360, phosphor bronze worm wheel\",\n    \"category\": \"Aluminium Worm Gearbox\",\n    \"offers\": {\n        \"@type\": \"Offer\",\n        \"priceCurrency\": \"USD\",\n        \"price\": \"Contact for Quote\",\n        \"availability\": \"https:\\\/\\\/schema.org\\\/InStock\"\n    }\n}<\/script><\/p>\n<div style=\"font-family:Arial,sans-serif;font-size:clamp(13px,1.6vw,16px);line-height:1.7;word-break:break-word;overflow-wrap:break-word;padding:2% 3%;\">\n<h2 style=\"color:#1a4a2e;font-size:clamp(17px,2.5vw,22px);font-family:Arial,sans-serif;border-bottom:3px solid #1a4a2e;padding-bottom:6px;margin-top:28px;\">EP-NRV040 Aluminium Worm Gearbox \u2014 Overview<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/gearboxesworm.xyz\/wp-content\/uploads\/2026\/06\/nrv-worm-gear-speed-reducer.webp\" alt=\"EP-NRV040 aluminium worm gear speed reducer solid shaft input\" style=\"max-width:45%;height:auto;float:right;margin:0 0 14px 20px;border-radius:6px;\"><\/p>\n<p style=\"font-family:Arial,sans-serif;font-size:clamp(13px,1.5vw,15px);line-height:1.7;word-break:break-word;\">The <strong>EP-NRV040<\/strong> is a direct-coupled mid-range aluminium worm gearbox \u2014 a versatile mid-range unit in the NRV series, engineered around a 040 mm worm gear centre distance. Unlike the NMRV series which features a hollow-bore IEC motor flange input, the <strong>NRV040 uses a solid 11 mm solid input shaft<\/strong> with a precision-ground keyway, making it purpose-built for belt-driven, chain-driven, and shaft-coupled drive systems across belt-driven pump stations, chain conveyors, industrial mixers, and woodworking lines. The solid shaft input eliminates the need for a motor flange adaptor, enabling shorter drive train layouts and seamless integration into multi-stage gear systems. With output torques up to <strong>400 Nm<\/strong>, reduction ratios from <strong>5\u2013100:1<\/strong>, and a die-cast aluminium A360 housing with IP65 shaft sealing, the EP-NRV040 delivers reliable, corrosion-resistant performance for belt-driven and chain-driven industrial machinery. Six mounting positions and three output configurations give machine designers full layout flexibility across Australian and international installations.<\/p>\n<div style=\"clear:both;\"><\/div>\n<\/div>\n<div style=\"font-family:Arial,sans-serif;font-size:clamp(13px,1.6vw,16px);line-height:1.7;word-break:break-word;overflow-wrap:break-word;padding:2% 3%;\">\n<h2 style=\"color:#1a4a2e;font-size:clamp(17px,2.5vw,22px);font-family:Arial,sans-serif;border-bottom:3px solid #1a4a2e;padding-bottom:6px;margin-top:28px;\">Technical Specifications \u2014 EP-NRV040<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/gearboxesworm.xyz\/wp-content\/uploads\/2026\/06\/nrv-worm-gear-speed-reducer-specification.webp\" alt=\"EP-NRV040 worm gear speed reducer specification drawing\" style=\"max-width:100%;height:auto;margin:10px 0 16px;border-radius:4px;\"><br \/>\n<img decoding=\"async\" src=\"https:\/\/gearboxesworm.xyz\/wp-content\/uploads\/2026\/06\/nmrv-040-worm-gearbox-dimensions.webp\" alt=\"EP-NRV040 worm gearbox dimension drawing\" style=\"max-width:100%;height:auto;margin:0 0 16px;border-radius:4px;\"><\/p>\n<h3 style=\"color:#1a4a2e;font-size:clamp(14px,2vw,17px);font-family:Arial,sans-serif;margin-top:18px;\">General Specifications<\/h3>\n<div style=\"overflow-x:auto;margin:14px 0;\">\n<table style=\"width:100%;border-collapse:collapse;\">\n<thead>\n<tr>\n<th style=\"background:#1a4a2e;color:#fff;padding:8px 10px;text-align:left;font-family:Arial,sans-serif;font-size:13px;\">Parameter<\/th>\n<th style=\"background:#1a4a2e;color:#fff;padding:8px 10px;text-align:left;font-family:Arial,sans-serif;font-size:13px;\">Specification<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\"><strong>Model Number<\/strong><\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">EP-NRV040<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\"><strong>Series<\/strong><\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">NRV \u2014 Solid input shaft, no motor flange<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\"><strong>Centre Distance<\/strong><\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">040 mm<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\"><strong>Max Output Torque<\/strong><\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">400 Nm<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\"><strong>Reduction Ratios<\/strong><\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">5\u2013100:1<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\"><strong>Input Shaft Diameter<\/strong><\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">11 mm solid<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\"><strong>Input Shaft Keyway<\/strong><\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">4\u00d72.5 mm<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\"><strong>Input Shaft Tolerance<\/strong><\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">h6 (precision ground)<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\"><strong>Max Input Shaft Radial Load (Fri max)<\/strong><\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">350 N<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\"><strong>Output Shaft Diameter<\/strong><\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">18 mm<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\"><strong>Max Recommended Input Power<\/strong><\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">0.12 kW<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\"><strong>Housing Material<\/strong><\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">Die-cast aluminium alloy A360<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\"><strong>Worm Wheel Material<\/strong><\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">Phosphor bronze<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\"><strong>Worm Shaft Material<\/strong><\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">20CrMnTi case-hardened steel, ground<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\"><strong>Surface Treatment<\/strong><\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">Baked enamel paint (RAL 5010 blue)<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\"><strong>Lubricant<\/strong><\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">ISO VG 220 worm gear oil, ~0.20 L<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\"><strong>IP Rating<\/strong><\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">IP65 (shaft seals standard)<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\"><strong>Ambient Temperature<\/strong><\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">-10\u00b0C to +40\u00b0C standard; up to +60\u00b0C with synthetic oil<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\"><strong>Max Input Speed<\/strong><\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">1,400 rpm (recommended); 1,800 rpm (max)<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\"><strong>Approx. Weight<\/strong><\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">~2.5 kg<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\"><strong>Mounting Positions<\/strong><\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">B3, B6, B7, B8, V5, V6<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\"><strong>Output Configurations<\/strong><\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">Solid shaft \/ Double shaft (DZ) \/ Output flange (FL)<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\"><strong>Input Connection<\/strong><\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">Solid shaft with keyway \u2014 use coupling, pulley, or sprocket<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\"><strong>Standards<\/strong><\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">ISO 9001, CE marking<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h3 style=\"color:#1a4a2e;font-size:clamp(14px,2vw,17px);font-family:Arial,sans-serif;margin-top:18px;\">Performance Selection Data (1,400 rpm Input)<\/h3>\n<div style=\"overflow-x:auto;margin:14px 0;\">\n<table style=\"width:100%;border-collapse:collapse;\">\n<thead>\n<tr>\n<th style=\"background:#1a4a2e;color:#fff;padding:8px 10px;text-align:left;font-family:Arial,sans-serif;font-size:13px;\">Ratio (i)<\/th>\n<th style=\"background:#1a4a2e;color:#fff;padding:8px 10px;text-align:left;font-family:Arial,sans-serif;font-size:13px;\">Output Speed (r\/min)<\/th>\n<th style=\"background:#1a4a2e;color:#fff;padding:8px 10px;text-align:left;font-family:Arial,sans-serif;font-size:13px;\">Output Torque (Nm)<\/th>\n<th style=\"background:#1a4a2e;color:#fff;padding:8px 10px;text-align:left;font-family:Arial,sans-serif;font-size:13px;\">Input Power (kW)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">7.5:1<\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">187<\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">400<\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">0.12<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">10:1<\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">140<\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">430<\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">0.12<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">15:1<\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">93<\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">470<\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">0.12<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">20:1<\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">70<\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">500<\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">0.12<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">30:1<\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">47<\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">540<\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">0.12<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">50:1<\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">28<\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">560<\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">0.12<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<div style=\"font-family:Arial,sans-serif;font-size:clamp(13px,1.6vw,16px);line-height:1.7;word-break:break-word;overflow-wrap:break-word;padding:2% 3%;\">\n<h2 style=\"color:#1a4a2e;font-size:clamp(17px,2.5vw,22px);font-family:Arial,sans-serif;border-bottom:3px solid #1a4a2e;padding-bottom:6px;margin-top:28px;\">Core Features &amp; Benefits<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/gearboxesworm.xyz\/wp-content\/uploads\/2026\/06\/aluminium-worm-gearbox-structure.webp\" alt=\"NRV040 aluminium worm gearbox internal structure\" style=\"max-width:100%;height:auto;margin:0 0 14px;border-radius:4px;\"><\/p>\n<div style=\"display:flex;flex-wrap:wrap;gap:14px;margin:16px 0;\">\n<div style=\"flex:1 1 260px;max-width:380px;background:#f2f8ee;border-left:4px solid #1a4a2e;padding:calc(2%+8px);box-sizing:border-box;border-radius:4px;word-break:break-word;\">\n<h3 style=\"font-size:14px;color:#1a4a2e;font-family:Arial,sans-serif;margin:0 0 6px;\"><span style=\"color:#c0392b;margin-right:6px;\">&#9711;<\/span>Solid Shaft Input \u2014 No Motor Flange Required<\/h3>\n<p style=\"font-size:13px;color:#444;font-family:Arial,sans-serif;line-height:1.6;margin:0;\">The EP-NRV040 solid 11 mm solid input shaft accepts standard couplings, pulleys, and chain sprockets directly. Ideal for belt\/chain-driven systems and multi-stage gear trains where no IEC motor flange is needed \u2014 simplifying drive layout and reducing component count.<\/p>\n<\/div>\n<div style=\"flex:1 1 260px;max-width:380px;background:#f2f8ee;border-left:4px solid #1a4a2e;padding:calc(2%+8px);box-sizing:border-box;border-radius:4px;word-break:break-word;\">\n<h3 style=\"font-size:14px;color:#1a4a2e;font-family:Arial,sans-serif;margin:0 0 6px;\"><span style=\"color:#c0392b;margin-right:6px;\">&#9651;<\/span>Corrosion-Resistant Die-Cast Aluminium Housing<\/h3>\n<p style=\"font-size:13px;color:#444;font-family:Arial,sans-serif;line-height:1.6;margin:0;\">A360 die-cast aluminium provides inherent corrosion resistance for food processing washdowns, coastal Australian sites, and humid industrial environments. The baked enamel finish adds UV and chemical protection for outdoor and industrial installations.<\/p>\n<\/div>\n<div style=\"flex:1 1 260px;max-width:380px;background:#f2f8ee;border-left:4px solid #1a4a2e;padding:calc(2%+8px);box-sizing:border-box;border-radius:4px;word-break:break-word;\">\n<h3 style=\"font-size:14px;color:#1a4a2e;font-family:Arial,sans-serif;margin:0 0 6px;\"><span style=\"color:#c0392b;margin-right:6px;\">&#9670;<\/span>Precision Ground Worm Shaft \u2014 Low Noise Operation<\/h3>\n<p style=\"font-size:13px;color:#444;font-family:Arial,sans-serif;line-height:1.6;margin:0;\">Ground worm shaft and precision-hobbed phosphor bronze wheel deliver smooth, low-noise torque transmission. Aluminium housing vibration damping further reduces structure-borne noise in printing, packaging, and textile machinery applications.<\/p>\n<\/div>\n<div style=\"flex:1 1 260px;max-width:380px;background:#f2f8ee;border-left:4px solid #1a4a2e;padding:calc(2%+8px);box-sizing:border-box;border-radius:4px;word-break:break-word;\">\n<h3 style=\"font-size:14px;color:#1a4a2e;font-family:Arial,sans-serif;margin:0 0 6px;\"><span style=\"color:#c0392b;margin-right:6px;\">&#9632;<\/span>Six Mounting Positions + Three Output Options<\/h3>\n<p style=\"font-size:13px;color:#444;font-family:Arial,sans-serif;line-height:1.6;margin:0;\">B3, B6, B7, B8, V5, V6 mounting orientations combined with solid shaft, double shaft (DZ), and output flange (FL) output options provide complete layout flexibility for complex multi-axis drive systems.<\/p>\n<\/div>\n<div style=\"flex:1 1 260px;max-width:380px;background:#f2f8ee;border-left:4px solid #1a4a2e;padding:calc(2%+8px);box-sizing:border-box;border-radius:4px;word-break:break-word;\">\n<h3 style=\"font-size:14px;color:#1a4a2e;font-family:Arial,sans-serif;margin:0 0 6px;\"><span style=\"color:#c0392b;margin-right:6px;\">&#9654;<\/span>Static Self-Locking at Ratios \u2265 40:1<\/h3>\n<p style=\"font-size:13px;color:#444;font-family:Arial,sans-serif;line-height:1.6;margin:0;\">At ratios of 40:1 and above, worm geometry prevents back-drive under static load \u2014 simplifying gate actuators, conveyor braking systems, and positioning drives without an external holding brake.<\/p>\n<\/div>\n<div style=\"flex:1 1 260px;max-width:380px;background:#f2f8ee;border-left:4px solid #1a4a2e;padding:calc(2%+8px);box-sizing:border-box;border-radius:4px;word-break:break-word;\">\n<h3 style=\"font-size:14px;color:#1a4a2e;font-family:Arial,sans-serif;margin:0 0 6px;\"><span style=\"color:#c0392b;margin-right:6px;\">&#9679;<\/span>Superior Heat Dissipation \u2014 Extended Oil and Seal Life<\/h3>\n<p style=\"font-size:13px;color:#444;font-family:Arial,sans-serif;line-height:1.6;margin:0;\">Aluminium thermal conductivity (~160 W\/m\u00b7K) dissipates gear-generated heat up to 3\u00d7 faster than cast iron, keeping operating temperatures lower and extending lubricant life \u2014 critical for high-duty-cycle shaft-coupled drive applications.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<div style=\"font-family:Arial,sans-serif;font-size:clamp(13px,1.6vw,16px);line-height:1.7;word-break:break-word;overflow-wrap:break-word;padding:2% 3%;\">\n<h2 style=\"color:#1a4a2e;font-size:clamp(17px,2.5vw,22px);font-family:Arial,sans-serif;border-bottom:3px solid #1a4a2e;padding-bottom:6px;margin-top:28px;\">EP-NRV040 vs EP-NMRV040 \u2014 Which Input Type is Right for You?<\/h2>\n<p style=\"font-family:Arial,sans-serif;font-size:clamp(13px,1.5vw,15px);line-height:1.7;word-break:break-word;\">The NRV and NMRV series share identical worm sets, output shafts, housings, and torque ratings. The only difference is the input configuration. Use this comparison to select the right input type for your application.<\/p>\n<div style=\"overflow-x:auto;margin:14px 0;\">\n<table style=\"width:100%;border-collapse:collapse;\">\n<thead>\n<tr>\n<th style=\"background:#1a4a2e;color:#fff;padding:8px 10px;text-align:left;font-family:Arial,sans-serif;font-size:13px;\">Feature<\/th>\n<th style=\"background:#1a4a2e;color:#fff;padding:8px 10px;text-align:left;font-family:Arial,sans-serif;font-size:13px;\">EP-NRV040 (Solid Shaft Input)<\/th>\n<th style=\"background:#1a4a2e;color:#fff;padding:8px 10px;text-align:left;font-family:Arial,sans-serif;font-size:13px;\">EP-NMRV040 (IEC Flange Input)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\"><strong>Input Connection<\/strong><\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">Solid shaft \u2014 coupling, pulley, sprocket<\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">Hollow bore with IEC motor flange<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\"><strong>Motor Mounting<\/strong><\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">No motor flange \u2014 flexible drive layout<\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">Direct motor mounting via IEC flange<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\"><strong>Best Application<\/strong><\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">Gear trains, belt\/chain drives, multi-stage systems<\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">Direct motor-to-gearbox mounting<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\"><strong>Housing Material<\/strong><\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">Die-cast aluminium A360<\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">Die-cast aluminium A360 (same body)<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\"><strong>Output Torque<\/strong><\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">Up to 400 Nm (identical)<\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">Up to 400 Nm (identical)<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\"><strong>Drive Train Length<\/strong><\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">Shorter \u2014 no motor\/adaptor overhang<\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">Slightly longer with motor mounted<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\"><strong>Corrosion Resistance<\/strong><\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">Excellent \u2014 same aluminium housing<\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">Excellent \u2014 same aluminium housing<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\"><strong>IP Rating<\/strong><\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">IP65 shaft seals standard<\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">IP65 shaft seals standard<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\"><strong>Noise Level<\/strong><\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">Low \u2014 same worm set<\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">Low \u2014 same worm set<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\"><strong>Weight<\/strong><\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">~2.5 kg<\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">~2.5 kg (same)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<div style=\"font-family:Arial,sans-serif;font-size:clamp(13px,1.6vw,16px);line-height:1.7;word-break:break-word;overflow-wrap:break-word;padding:2% 3%;\">\n<h2 style=\"color:#1a4a2e;font-size:clamp(17px,2.5vw,22px);font-family:Arial,sans-serif;border-bottom:3px solid #1a4a2e;padding-bottom:6px;margin-top:28px;\">Application Sectors \u2014 EP-NRV040<\/h2>\n<p style=\"font-family:Arial,sans-serif;font-size:clamp(13px,1.5vw,15px);line-height:1.7;word-break:break-word;\">The EP-NRV040 solid-shaft worm gearbox is suited to the following industries and drive system types, each benefiting from direct shaft coupling without a motor flange.<\/p>\n<div style=\"display:flex;flex-wrap:wrap;gap:12px;margin:16px 0;\">\n<div style=\"flex:1 1 180px;max-width:300px;background:#fff;border:1px solid #c8ddc0;padding:calc(2%+6px);box-sizing:border-box;border-radius:4px;word-break:break-word;\">\n<p style=\"font-size:14px;color:#1a4a2e;font-family:Arial,sans-serif;font-weight:bold;margin:0 0 4px;\"><span style=\"color:#c0392b;\">&#9880;<\/span> Belt-Driven Pumps<\/p>\n<p style=\"font-size:12px;color:#555;font-family:Arial,sans-serif;margin:0;line-height:1.5;\">Suitable worm gearbox solid shaft for belt driven pumps.<\/p>\n<\/div>\n<div style=\"flex:1 1 180px;max-width:300px;background:#fff;border:1px solid #c8ddc0;padding:calc(2%+6px);box-sizing:border-box;border-radius:4px;word-break:break-word;\">\n<p style=\"font-size:14px;color:#1a4a2e;font-family:Arial,sans-serif;font-weight:bold;margin:0 0 4px;\"><span style=\"color:#c0392b;\">&#9881;<\/span> Chain Conveyors<\/p>\n<p style=\"font-size:12px;color:#555;font-family:Arial,sans-serif;margin:0;line-height:1.5;\">Suitable direct drive worm reducer for chain conveyors.<\/p>\n<\/div>\n<div style=\"flex:1 1 180px;max-width:300px;background:#fff;border:1px solid #c8ddc0;padding:calc(2%+6px);box-sizing:border-box;border-radius:4px;word-break:break-word;\">\n<p style=\"font-size:14px;color:#1a4a2e;font-family:Arial,sans-serif;font-weight:bold;margin:0 0 4px;\"><span style=\"color:#c0392b;\">&#9882;<\/span> Industrial Mixers<\/p>\n<p style=\"font-size:12px;color:#555;font-family:Arial,sans-serif;margin:0;line-height:1.5;\">Suitable shaft input worm gearbox industrial mixer.<\/p>\n<\/div>\n<div style=\"flex:1 1 180px;max-width:300px;background:#fff;border:1px solid #c8ddc0;padding:calc(2%+6px);box-sizing:border-box;border-radius:4px;word-break:break-word;\">\n<p style=\"font-size:14px;color:#1a4a2e;font-family:Arial,sans-serif;font-weight:bold;margin:0 0 4px;\"><span style=\"color:#c0392b;\">&#9874;<\/span> Woodworking Lines<\/p>\n<p style=\"font-size:12px;color:#555;font-family:Arial,sans-serif;margin:0;line-height:1.5;\">Suitable solid shaft worm reducer woodworking machinery.<\/p>\n<\/div>\n<div style=\"flex:1 1 180px;max-width:300px;background:#fff;border:1px solid #c8ddc0;padding:calc(2%+6px);box-sizing:border-box;border-radius:4px;word-break:break-word;\">\n<p style=\"font-size:14px;color:#1a4a2e;font-family:Arial,sans-serif;font-weight:bold;margin:0 0 4px;\"><span style=\"color:#c0392b;\">&#9883;<\/span> HVAC Shaft Drives<\/p>\n<p style=\"font-size:12px;color:#555;font-family:Arial,sans-serif;margin:0;line-height:1.5;\">Suitable NRV worm gearbox HVAC shaft drive.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<div style=\"font-family:Arial,sans-serif;font-size:clamp(13px,1.6vw,16px);line-height:1.7;word-break:break-word;overflow-wrap:break-word;padding:2% 3%;\">\n<h2 style=\"color:#1a4a2e;font-size:clamp(17px,2.5vw,22px);font-family:Arial,sans-serif;border-bottom:3px solid #1a4a2e;padding-bottom:6px;margin-top:28px;\">Selection Guide, Mounting Positions &amp; Shaft Details<\/h2>\n<h3 style=\"color:#1a4a2e;font-size:clamp(14px,2vw,17px);font-family:Arial,sans-serif;margin-top:18px;\">How to Select the Correct Ratio<\/h3>\n<ol style=\"font-family:Arial,sans-serif;font-size:clamp(13px,1.5vw,15px);line-height:1.7;word-break:break-word;padding-left:1.4em;line-height:1.9;\">\n<li><strong>Calculate required output torque:<\/strong> M\u2082 = 9,550 \u00d7 P (kW) \/ n\u2082 (rpm), then multiply by service factor (fs = 1.0\u20132.5).<\/li>\n<li><strong>Determine actual input shaft speed:<\/strong> For belt\/chain drives, n_input = n_motor \u00d7 (D_motor pulley \/ D_NRV pulley). Use this as your input speed, not the motor rated speed.<\/li>\n<li><strong>Find your ratio:<\/strong> i = n_input \/ n_output. Select the closest available ratio from 5\u2013100:1.<\/li>\n<li><strong>Confirm torque capacity:<\/strong> The selected ratio&#8217;s rated torque must exceed M\u2082 \u00d7 fs. If not, step up to EP-NRV050.<\/li>\n<li><strong>Check input shaft radial load:<\/strong> Calculate belt\/chain tension force and verify it does not exceed Fri max = 350 N.<\/li>\n<\/ol>\n<h3 style=\"color:#1a4a2e;font-size:clamp(14px,2vw,17px);font-family:Arial,sans-serif;margin-top:18px;\">Input &amp; Output Shaft Details<\/h3>\n<div style=\"font-family:Arial,sans-serif;font-size:13px;line-height:1.6;\">\n<p><strong>Input shaft:<\/strong> 11 mm solid | Keyway: 4\u00d72.5 mm | Tolerance: h6 | Max radial load: 350 N<\/p>\n<p>Mount couplings, pulleys, and sprockets directly. Use a keyway-secured locking collar or hub to prevent axial movement. Calculate input shaft radial load from belt\/chain tension and verify against Fri max = 350 N.<\/p>\n<div style=\"display:flex;flex-wrap:wrap;gap:12px;margin:10px 0;\">\n<div style=\"flex:1 1 180px;max-width:280px;background:#f2f8ee;padding:calc(2%+6px);border-radius:4px;box-sizing:border-box;\"><strong style=\"color:#1a4a2e;\">Standard Output Shaft<\/strong><br \/>18 mm diameter with keyway. Single-sided. Default supply.<\/div>\n<div style=\"flex:1 1 180px;max-width:280px;background:#f2f8ee;padding:calc(2%+6px);border-radius:4px;box-sizing:border-box;\"><strong style=\"color:#1a4a2e;\">Double Shaft (DZ)<\/strong><br \/>Shaft exits both sides. Bidirectional take-off. Suffix: DZ.<\/div>\n<div style=\"flex:1 1 180px;max-width:280px;background:#f2f8ee;padding:calc(2%+6px);border-radius:4px;box-sizing:border-box;\"><strong style=\"color:#1a4a2e;\">Output Flange (FL)<\/strong><br \/>Direct bolt-on flange connection. Eliminates coupling. Suffix: FL.<\/div>\n<\/div>\n<\/div>\n<p><img decoding=\"async\" src=\"https:\/\/gearboxesworm.xyz\/wp-content\/uploads\/2026\/06\/aluminium-worm-gearbox-shaft.webp\" alt=\"NRV040 aluminium worm gearbox shaft detail\" style=\"max-width:100%;height:auto;margin:10px 0;border-radius:4px;\"><\/p>\n<h3 style=\"color:#1a4a2e;font-size:clamp(14px,2vw,17px);font-family:Arial,sans-serif;margin-top:18px;\">Mounting Positions<\/h3>\n<p><img decoding=\"async\" src=\"https:\/\/gearboxesworm.xyz\/wp-content\/uploads\/2026\/06\/NMRV-worm-gearbox-mounting-position.webp\" alt=\"NRV worm gearbox mounting positions B3 B6 B7 B8 V5 V6\" style=\"max-width:100%;height:auto;margin:10px 0;border-radius:4px;\"><\/p>\n<div style=\"overflow-x:auto;margin:14px 0;\">\n<table style=\"width:100%;border-collapse:collapse;\">\n<thead>\n<tr>\n<th style=\"background:#1a4a2e;color:#fff;padding:8px 10px;text-align:left;font-family:Arial,sans-serif;font-size:13px;\">Position<\/th>\n<th style=\"background:#1a4a2e;color:#fff;padding:8px 10px;text-align:left;font-family:Arial,sans-serif;font-size:13px;\">Description<\/th>\n<th style=\"background:#1a4a2e;color:#fff;padding:8px 10px;text-align:left;font-family:Arial,sans-serif;font-size:13px;\">Shaft Orientation<\/th>\n<th style=\"background:#1a4a2e;color:#fff;padding:8px 10px;text-align:left;font-family:Arial,sans-serif;font-size:13px;\">Oil Level Note<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\"><strong>B3<\/strong><\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">Horizontal foot mount<\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">Horizontal<\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">Standard fill level \u2014 default factory supply<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\"><strong>B6<\/strong><\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">Foot mount, output shaft down<\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">Vertical downward<\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">Reduce oil by ~15%<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\"><strong>B7<\/strong><\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">Foot mount, output shaft up<\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">Vertical upward<\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">Increase oil by ~15%<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\"><strong>B8<\/strong><\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">Foot mount, output shaft horizontal (180\u00b0)<\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">Horizontal reversed<\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">Standard fill level<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\"><strong>V5<\/strong><\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">Flange mount, shaft down<\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">Vertical downward<\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">Reduce oil \u2014 check lubrication guide<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\"><strong>V6<\/strong><\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">Flange mount, shaft up<\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">Vertical upward<\/td>\n<td style=\"padding:7px 10px;border-bottom:1px solid #e0ead4;background:#f2f8ee;font-family:Arial,sans-serif;font-size:13px;word-break:break-word;\">Increase oil \u2014 check lubrication guide<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<div style=\"font-family:Arial,sans-serif;font-size:clamp(13px,1.6vw,16px);line-height:1.7;word-break:break-word;overflow-wrap:break-word;padding:2% 3%;\">\n<h2 style=\"color:#1a4a2e;font-size:clamp(17px,2.5vw,22px);font-family:Arial,sans-serif;border-bottom:3px solid #1a4a2e;padding-bottom:6px;margin-top:28px;\">Frequently Asked Questions \u2014 EP-NRV040<\/h2>\n<div style=\"font-family:Arial,sans-serif;font-size:13px;\">\n<details style=\"margin-bottom:8px;border:1px solid #c8ddc0;border-radius:4px;\">\n<summary style=\"background:#1a4a2e;color:#fff;padding:10px 14px;cursor:pointer;font-family:Arial,sans-serif;font-size:13px;list-style:none;word-break:break-word;\">&#9654; Why choose the EP-NRV040 over the EP-NMRV040 for a belt-driven application?<\/summary>\n<p style=\"padding:10px 14px;margin:0;color:#333;background:#f9fcf7;word-break:break-word;font-family:Arial,sans-serif;font-size:13px;\">The EP-NRV040 with its solid 11 mm input shaft is purpose-built for belt-driven and chain-driven systems where power arrives via a pulley or sprocket rather than a motor flange. It avoids the need for a motor adaptor, reduces overall drive train length, and is ideal when the motor is remote or already driving another component.<\/p>\n<\/details>\n<details style=\"margin-bottom:8px;border:1px solid #c8ddc0;border-radius:4px;\">\n<summary style=\"background:#1a4a2e;color:#fff;padding:10px 14px;cursor:pointer;font-family:Arial,sans-serif;font-size:13px;list-style:none;word-break:break-word;\">&#9654; What is the input shaft specification of the EP-NRV040?<\/summary>\n<p style=\"padding:10px 14px;margin:0;color:#333;background:#f9fcf7;word-break:break-word;font-family:Arial,sans-serif;font-size:13px;\">The EP-NRV040 features an 11 mm solid input shaft machined to h6 tolerance with a 4\u00d72.5 mm keyway. The shaft protrudes on one side of the housing, ready for direct pulley, sprocket, or coupling mounting. Maximum input radial load (Fri max) is 350 N.<\/p>\n<\/details>\n<details style=\"margin-bottom:8px;border:1px solid #c8ddc0;border-radius:4px;\">\n<summary style=\"background:#1a4a2e;color:#fff;padding:10px 14px;cursor:pointer;font-family:Arial,sans-serif;font-size:13px;list-style:none;word-break:break-word;\">&#9654; What output torque does the EP-NRV040 deliver?<\/summary>\n<p style=\"padding:10px 14px;margin:0;color:#333;background:#f9fcf7;word-break:break-word;font-family:Arial,sans-serif;font-size:13px;\">The EP-NRV040 delivers up to 400 Nm of output torque at 1,400 rpm input, depending on gear ratio. This supports pump drives, chain conveyor gearboxes, and industrial mixing shafts in compact aluminium-housed drive systems.<\/p>\n<\/details>\n<details style=\"margin-bottom:8px;border:1px solid #c8ddc0;border-radius:4px;\">\n<summary style=\"background:#1a4a2e;color:#fff;padding:10px 14px;cursor:pointer;font-family:Arial,sans-serif;font-size:13px;list-style:none;word-break:break-word;\">&#9654; What are the available reduction ratios for the EP-NRV040?<\/summary>\n<p style=\"padding:10px 14px;margin:0;color:#333;background:#f9fcf7;word-break:break-word;font-family:Arial,sans-serif;font-size:13px;\">Available ratios: 5, 7.5, 10, 15, 20, 25, 30, 40, 50, 60, 80, and 100. For belt-driven inputs at reduced speed, apply the actual input shaft speed to the selection calculation rather than the motor&#8217;s rated speed.<\/p>\n<\/details>\n<details style=\"margin-bottom:8px;border:1px solid #c8ddc0;border-radius:4px;\">\n<summary style=\"background:#1a4a2e;color:#fff;padding:10px 14px;cursor:pointer;font-family:Arial,sans-serif;font-size:13px;list-style:none;word-break:break-word;\">&#9654; Does the EP-NRV040 support dual output shafts?<\/summary>\n<p style=\"padding:10px 14px;margin:0;color:#333;background:#f9fcf7;word-break:break-word;font-family:Arial,sans-serif;font-size:13px;\">Yes \u2014 specify suffix DZ for a double output shaft configuration (both sides of the output bearing housing are fitted with shafts). This is useful when driving two parallel conveyor branches or rolls from a single chain-driven gearbox.<\/p>\n<\/details>\n<details style=\"margin-bottom:8px;border:1px solid #c8ddc0;border-radius:4px;\">\n<summary style=\"background:#1a4a2e;color:#fff;padding:10px 14px;cursor:pointer;font-family:Arial,sans-serif;font-size:13px;list-style:none;word-break:break-word;\">&#9654; How does the EP-NRV040 handle thrust loads on the input shaft?<\/summary>\n<p style=\"padding:10px 14px;margin:0;color:#333;background:#f9fcf7;word-break:break-word;font-family:Arial,sans-serif;font-size:13px;\">The EP-NRV040 input shaft bearings are designed primarily for radial loads. Axial thrust loads on the input shaft should be minimised by using flexible couplings or properly aligned belt\/chain drives. For applications with significant input axial loads, contact our engineers for bearing selection guidance.<\/p>\n<\/details>\n<\/div>\n<\/div>\n<p><script type=\"application\/ld+json\">{\n    \"@context\": \"https:\\\/\\\/schema.org\",\n    \"@type\": \"FAQPage\",\n    \"mainEntity\": [\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Why choose the EP-NRV040 over the EP-NMRV040 for a belt-driven application?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The EP-NRV040 with its solid 11 mm input shaft is purpose-built for belt-driven and chain-driven systems where power arrives via a pulley or sprocket rather than a motor flange. 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For belt-driven inputs at reduced speed, apply the actual input shaft speed to the selection calculation rather than the motor's rated speed.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Does the EP-NRV040 support dual output shafts?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes \\u2014 specify suffix DZ for a double output shaft configuration (both sides of the output bearing housing are fitted with shafts). This is useful when driving two parallel conveyor branches or rolls from a single chain-driven gearbox.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How does the EP-NRV040 handle thrust loads on the input shaft?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The EP-NRV040 input shaft bearings are designed primarily for radial loads. Axial thrust loads on the input shaft should be minimised by using flexible couplings or properly aligned belt\\\/chain drives. For applications with significant input axial loads, contact our engineers for bearing selection guidance.\"\n            }\n        }\n    ]\n}<\/script><\/p>\n<div style=\"font-family:Arial,sans-serif;font-size:clamp(13px,1.6vw,16px);line-height:1.7;word-break:break-word;overflow-wrap:break-word;padding:2% 3%;\">\n<h2 style=\"color:#1a4a2e;font-size:clamp(17px,2.5vw,22px);font-family:Arial,sans-serif;border-bottom:3px solid #1a4a2e;padding-bottom:6px;margin-top:28px;\">Customer Reviews<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/gearboxesworm.xyz\/wp-content\/uploads\/2026\/06\/worm-reducer-production-facilities-2.webp\" alt=\"Ever-power worm reducer production facility quality control\" style=\"max-width:100%;height:auto;margin:0 0 14px;border-radius:4px;\"><\/p>\n<div style=\"display:flex;flex-wrap:wrap;gap:14px;margin:16px 0;\">\n<div style=\"flex:1 1 260px;max-width:400px;background:#fff;border:1px solid #c8ddc0;padding:calc(2%+8px);border-radius:6px;box-sizing:border-box;word-break:break-word;\">\n<p style=\"font-size:17px;color:#f39c12;margin:0 0 6px;\">\u2605\u2605\u2605\u2605\u2605<\/p>\n<p style=\"font-size:13px;color:#333;font-family:Arial,sans-serif;font-style:italic;margin:0 0 8px;\">&ldquo;Running EP-NRV040 units on belt-driven irrigation pump stations across rural New South Wales. The solid input shaft takes our V-belt pulleys directly, and the aluminium housing handles the heat and dust of outback conditions without complaint. Excellent value.&rdquo;<\/p>\n<p style=\"font-size:12px;color:#666;font-family:Arial,sans-serif;margin:0;\"><strong>Brendan Kelly<\/strong> \u2014 Industrial Pump Services<br \/>Australia  <\/p>\n<\/div>\n<div style=\"flex:1 1 260px;max-width:400px;background:#fff;border:1px solid #c8ddc0;padding:calc(2%+8px);border-radius:6px;box-sizing:border-box;word-break:break-word;\">\n<p style=\"font-size:17px;color:#f39c12;margin:0 0 6px;\">\u2605\u2605\u2605\u2605\u2605<\/p>\n<p style=\"font-size:13px;color:#333;font-family:Arial,sans-serif;font-style:italic;margin:0 0 8px;\">&ldquo;Used in the feed drive gear trains of our panel saws. The 11 mm solid input shaft couples neatly to our servo output shafts. Precise ratio delivery is essential for our cutting feed speed \u2014 very satisfied with the consistency.&rdquo;<\/p>\n<p style=\"font-size:12px;color:#666;font-family:Arial,sans-serif;margin:0;\"><strong>Sofia Andersson<\/strong> \u2014 Woodworking Machinery AB<br \/>Sweden  <\/p>\n<\/div>\n<div style=\"flex:1 1 260px;max-width:400px;background:#fff;border:1px solid #c8ddc0;padding:calc(2%+8px);border-radius:6px;box-sizing:border-box;word-break:break-word;\">\n<p style=\"font-size:17px;color:#f39c12;margin:0 0 6px;\">\u2605\u2605\u2605\u2605\u2606<\/p>\n<p style=\"font-size:13px;color:#333;font-family:Arial,sans-serif;font-style:italic;margin:0 0 8px;\">&ldquo;Installed on chain-driven conveyor drives. The solid shaft input simplifies our sprocket mounting and the compact aluminium body fits our tight drive cabinet layouts. Consistent quality across multiple batches.&rdquo;<\/p>\n<p style=\"font-size:12px;color:#666;font-family:Arial,sans-serif;margin:0;\"><strong>Zhang Wei<\/strong> \u2014 Chain Conveyor Systems<br \/>China  <\/p>\n<\/div>\n<\/div>\n<\/div>\n<p><script type=\"application\/ld+json\">{\n    \"@context\": \"https:\\\/\\\/schema.org\",\n    \"@type\": \"Product\",\n    \"name\": \"EP-NRV040 Aluminium Worm Gearbox\",\n    \"aggregateRating\": {\n        \"@type\": \"AggregateRating\",\n        \"ratingValue\": \"4.8\",\n        \"reviewCount\": \"3\",\n        \"bestRating\": \"5\"\n    },\n    \"review\": [\n        {\n            \"@type\": \"Review\",\n            \"author\": {\n                \"@type\": \"Person\",\n                \"name\": \"Brendan Kelly\"\n            },\n            \"reviewRating\": {\n                \"@type\": \"Rating\",\n                \"ratingValue\": \"5\",\n                \"bestRating\": \"5\"\n            },\n            \"reviewBody\": \"Running EP-NRV040 units on belt-driven irrigation pump stations across rural New South Wales. The solid input shaft takes our V-belt pulleys directly, and the aluminium housing handles the heat and dust of outback conditions without complaint. Excellent value.\"\n        },\n        {\n            \"@type\": \"Review\",\n            \"author\": {\n                \"@type\": \"Person\",\n                \"name\": \"Sofia Andersson\"\n            },\n            \"reviewRating\": {\n                \"@type\": \"Rating\",\n                \"ratingValue\": \"5\",\n                \"bestRating\": \"5\"\n            },\n            \"reviewBody\": \"Used in the feed drive gear trains of our panel saws. The 11 mm solid input shaft couples neatly to our servo output shafts. Precise ratio delivery is essential for our cutting feed speed \\u2014 very satisfied with the consistency.\"\n        },\n        {\n            \"@type\": \"Review\",\n            \"author\": {\n                \"@type\": \"Person\",\n                \"name\": \"Zhang Wei\"\n            },\n            \"reviewRating\": {\n                \"@type\": \"Rating\",\n                \"ratingValue\": \"4.5\",\n                \"bestRating\": \"5\"\n            },\n            \"reviewBody\": \"Installed on chain-driven conveyor drives. The solid shaft input simplifies our sprocket mounting and the compact aluminium body fits our tight drive cabinet layouts. Consistent quality across multiple batches.\"\n        }\n    ]\n}<\/script><\/p>\n<div style=\"font-family:Arial,sans-serif;font-size:clamp(13px,1.6vw,16px);line-height:1.7;word-break:break-word;overflow-wrap:break-word;padding:2% 3%;\">\n<h2 style=\"color:#1a4a2e;font-size:clamp(17px,2.5vw,22px);font-family:Arial,sans-serif;border-bottom:3px solid #1a4a2e;padding-bottom:6px;margin-top:28px;\">Related Products &amp; Accessories<\/h2>\n<div style=\"display:flex;flex-wrap:wrap;gap:14px;margin:14px 0;font-family:Arial,sans-serif;font-size:13px;\">\n<div style=\"flex:1 1 220px;max-width:340px;background:#f2f8ee;padding:calc(2%+8px);border-radius:4px;box-sizing:border-box;\">\n<h3 style=\"color:#1a4a2e;font-size:14px;margin-top:0;\">&#9881; Input Connection Options<\/h3>\n<p>Flexible jaw couplings and disc couplings for 11 mm solid shaft.<br \/>Chain sprockets and V-belt pulleys (calculate Fri against 350 N max).<br \/>Toothed-belt pulley (verify radial load).<br \/>Bearing support bracket for high-tension chain\/belt drives.<\/p>\n<\/div>\n<div style=\"flex:1 1 220px;max-width:340px;background:#f2f8ee;padding:calc(2%+8px);border-radius:4px;box-sizing:border-box;\">\n<h3 style=\"color:#1a4a2e;font-size:14px;margin-top:0;\">&#9874; Output Accessories<\/h3>\n<p>&#9632; Single solid output shaft (standard, 18 mm)<br \/>&#9632; Double bidirectional shaft (DZ)<br \/>&#9632; Output flange (FL)<br \/>&#9632; Torque arm for torque reaction mounting<br \/>&#9632; Dust cover for unused shaft end<\/p>\n<\/div>\n<div style=\"flex:1 1 220px;max-width:340px;background:#f2f8ee;padding:calc(2%+8px);border-radius:4px;box-sizing:border-box;\">\n<h3 style=\"color:#1a4a2e;font-size:14px;margin-top:0;\">&#9670; Related Series<\/h3>\n<p>&#9632; EP-NMRV040 \u2014 hollow bore IEC flange input variant<br \/>&#9632; EP-NRV-E040 \u2014 solid input, coaxial inline output<br \/>&#9632; EP-NMRV-E040 \u2014 IEC flange input, coaxial output<br \/>&#9632; EP-NRV050 \u2014 next frame size up<\/p>\n<\/div>\n<\/div>\n<\/div>\n<div style=\"padding:2% 3%;\">\n<div style=\"background:linear-gradient(135deg,#1a4a2e,#2d7a4a);padding:calc(3%+14px);border-radius:8px;text-align:center;margin:20px 0;\">\n<h2 style=\"color:#fff;font-family:Arial,sans-serif;font-size:clamp(16px,2.5vw,22px);margin:0 0 8px;\">Ready to Order the EP-NRV040?<\/h2>\n<p style=\"color:#d0f0e0;font-family:Arial,sans-serif;font-size:13px;margin:0 0 16px;line-height:1.6;\">Request a quote, technical selection support, or enquire about OEM and distributor partnership opportunities for Australian and international markets.<\/p>\n<div style=\"display:flex;flex-wrap:wrap;justify-content:center;gap:10px;\"><a href=\"\/fa\/contact-us\/\" style=\"background:#c0392b;color:#fff;padding:10px 24px;border-radius:4px;text-decoration:none;font-family:Arial,sans-serif;font-size:13px;font-weight:bold;display:inline-block;\">&#9993; Request a Quote<\/a><a href=\"mailto:sales@gearboxesworm.xyz\" style=\"background:#fff;color:#1a4a2e;padding:10px 24px;border-radius:4px;text-decoration:none;font-family:Arial,sans-serif;font-size:13px;font-weight:bold;display:inline-block;\">&#9993; sales@gearboxesworm.xyz<\/a><a href=\"\/fa\/about-us\/\" style=\"background:transparent;color:#fff;padding:10px 24px;border-radius:4px;text-decoration:none;font-family:Arial,sans-serif;font-size:13px;border:2px solid #fff;display:inline-block;\">About Ever-power<\/a><\/div>\n<p style=\"color:#a0d8b8;font-family:Arial,sans-serif;font-size:12px;margin:12px 0 0;\">&#9660; Distributor &amp; OEM partnerships welcome \u2014 volume pricing available<\/p>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p style=\"font-family:Arial,sans-serif;font-size:clamp(13px,1.6vw,16px);line-height:1.7;word-break:break-word;overflow-wrap:break-word;\">The <strong>EP-NRV040<\/strong> aluminium worm gearbox features a solid 11 mm solid input (no motor flange) \u2014 a versatile mid-range unit in the NRV series with 400 Nm max torque, ratios 5\u2013100:1, 18 mm output shaft, IP65 sealing. Engineered for belt-driven and chain-driven industrial machinery. Contact us for a quote.<\/p>","protected":false},"featured_media":3005,"comment_status":"closed","ping_status":"open","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[8671],"product_tag":[8680,8679,8678,8672,8677],"class_list":{"0":"post-3030","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-aluminium-worm-gearbox","7":"product_tag-aluminium-worm-gearbox","8":"product_tag-nrv-worm-gear-reducer","9":"product_tag-solid-shaft-worm-gearbox","10":"product_tag-worm-gearbox","11":"product_tag-worm-reducer","13":"first","14":"instock","15":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/gearboxesworm.xyz\/fa\/wp-json\/wp\/v2\/product\/3030","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gearboxesworm.xyz\/fa\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/gearboxesworm.xyz\/fa\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/gearboxesworm.xyz\/fa\/wp-json\/wp\/v2\/comments?post=3030"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/gearboxesworm.xyz\/fa\/wp-json\/wp\/v2\/media\/3005"}],"wp:attachment":[{"href":"https:\/\/gearboxesworm.xyz\/fa\/wp-json\/wp\/v2\/media?parent=3030"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/gearboxesworm.xyz\/fa\/wp-json\/wp\/v2\/product_brand?post=3030"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/gearboxesworm.xyz\/fa\/wp-json\/wp\/v2\/product_cat?post=3030"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/gearboxesworm.xyz\/fa\/wp-json\/wp\/v2\/product_tag?post=3030"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}