{"id":1937,"date":"2026-06-05T09:16:19","date_gmt":"2026-06-05T09:16:19","guid":{"rendered":"https:\/\/reducers-worm.xyz\/product\/ep-nmrv075-aluminium-worm-reducer\/"},"modified":"2026-06-05T09:16:20","modified_gmt":"2026-06-05T09:16:20","slug":"ep-nmrv075-aluminium-worm-reducer","status":"publish","type":"product","link":"https:\/\/reducers-worm.xyz\/zh\/product\/ep-nmrv075-aluminium-worm-reducer\/","title":{"rendered":"EP-NMRV075 Aluminium Worm Reducer"},"content":{"rendered":"<p><script type=\"application\/ld+json\">{\n    \"@context\": \"https:\\\/\\\/schema.org\",\n    \"@type\": \"Product\",\n    \"name\": \"EP-NMRV075 Aluminium Worm Reducer\",\n    \"brand\": {\n        \"@type\": \"Brand\",\n        \"name\": \"EP\"\n    },\n    \"sku\": \"EP-NMRV075\",\n    \"description\": \"EP-NMRV075 aluminium worm reducer, 9kg, 75mm, 7.5-100:1, 0.25-3kW, IEC 56-112, FA\\\/FB\",\n    \"material\": \"Die-cast aluminium; 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-NMRV075 Heavy Medium-Duty Aluminium Worm Reducer<\/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-NMRV075<\/strong> takes the NMRV aluminium worm reducer series into serious medium-duty territory &#8211; delivering up to 233 Nm output torque at input powers up to 3 kW. At 9 kg with 75 mm centre distance, it remains significantly lighter than cast iron equivalents which typically weigh 15-20 kg while handling conveyor head drives, industrial agitator mechanisms, and processing equipment that the smaller NMRV063 cannot cover. The output shaft upgrades to &Oslash;28 mm standard with optional &Oslash;35 mm for heavier shaft loads &#8211; matching the shaft standards used in medium-duty Australian industrial drives. IEC motor frames from 56 to 112 connect directly via B5 or B14 flange, accommodating motors from 0.25 kW to 3 kW without adaptor plates. Compatible with PC071 and PC080 helical pre-stages for extended ratio ranges with higher efficiency than equivalent double-worm combinations.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/reducers-worm.xyz\/wp-content\/uploads\/2026\/06\/nmrv-worm-gearbox-1.webp\" alt=\"EP-NMRV075 aluminium worm gearbox 75mm centre distance heavy medium-duty industrial drive\" 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-NMRV075 Technical Specifications<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/reducers-worm.xyz\/wp-content\/uploads\/2026\/06\/nmrv-075-worm-gearbox-dimensions.webp\" alt=\"EP-NMRV075 aluminium worm reducer dimension drawing 75mm centre distance 28mm 35mm output shaft\" 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;\">Parameter<\/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-NMRV075<\/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;\">75 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;\">9 kg<\/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;28 mm h6 (optional &Oslash;35 mm)<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Output Keyway<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">b=8mm, t=31.3mm (38.3 for 35mm)<\/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;\">7.5, 10, 15, 20, 25, 30, 40, 50, 60, 80, 100<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Input Power<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">0.25 &#8211; 3 kW<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Housing<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Die-cast aluminium alloy<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">IEC Motor Frames<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">56\/63\/71\/80\/90\/100\/112 B5 and B14<\/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;\">Output Flanges<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">FA, FB<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Mounting<\/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<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Helical Pre-Stages<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">PC071, PC080<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h3 style=\"color:#1a3d6d;margin:14px 0 6px;\">Performance Data at P1 = 0.75 kW (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;\">Ratio<\/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;\">Service Factor<\/th>\n<th style=\"padding:6px;background:#1a3d6d;color:#fff;font-size:12px;\">Fr2 (N)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">15<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">93.3<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">130<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">1.5<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">3509<\/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;\">168<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">1.3<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">3862<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">25<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">56<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">205<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">1.0<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">4160<\/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;\">233<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">1.0<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">4421<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">40<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">35<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">147<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">1.5<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">4865<\/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;\">177<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">1.2<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">5241<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h3 style=\"color:#1a3d6d;margin:14px 0 6px;\">Performance Data at P1 = 0.55 kW (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;\">Ratio<\/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;\">Service Factor<\/th>\n<th style=\"padding:6px;background:#1a3d6d;color:#fff;font-size:12px;\">Fr2 (N)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">40<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">35<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">108<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">2.0<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">4865<\/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;\">129<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">1.6<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">5241<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">60<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">23.3<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">146<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">1.4<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">5569<\/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;\">180<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">1.1<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">6130<\/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;\">206<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">0.9<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">6603<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h3 style=\"color:#1a3d6d;margin:14px 0 6px;\">Helical Pre-Stage Combinations<\/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;\">Combination<\/th>\n<th style=\"padding:6px;background:#1a3d6d;color:#fff;font-size:12px;\">Ratio Range<\/th>\n<th style=\"padding:6px;background:#1a3d6d;color:#fff;font-size:12px;\">Max Torque<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">PC071+NMRV075<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">73.4 &#8211; 293.8:1<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">332 Nm<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">PC080+NMRV075<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">75 &#8211; 150:1<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">332 Nm<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">NMRV040\/075<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">2400 &#8211; 5000:1<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">498 Nm<\/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;\">&#9874; 233 Nm &#8211; Serious Medium-Duty Capacity<\/strong><br \/><span style=\"font-size:13px;color:#444;\">Handles loaded conveyor drives, industrial agitators, and processing equipment that smaller NMRV frames cannot. The first NMRV size operating at genuine medium-industrial torque levels.<\/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; IEC Frames 56 to 112 &#8211; Full Motor Range<\/strong><br \/><span style=\"font-size:13px;color:#444;\">Accepts motors from 0.25 kW to 3 kW directly via B5 or B14 flange. Frame 100 and 112 support opens the NMRV075 to medium-industrial applications previously requiring cast iron reducers.<\/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; 9 kg vs 15-20 kg Cast Iron Equivalent<\/strong><br \/><span style=\"font-size:13px;color:#444;\">45-55% lighter than comparable cast iron. Still practical for field installation by one or two workers on mining and construction sites without overhead lifting equipment.<\/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; Helical Pre-Stage Compatible &#8211; PC071 and PC080<\/strong><br \/><span style=\"font-size:13px;color:#444;\">PC071 and PC080 helical pre-stages extend the ratio range to 293.8:1 &#8211; achieving higher transmission efficiency than double-worm combinations at comparable ratios. Standard for demanding continuous-duty applications.<\/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\/mining-application.webp\" alt=\"EP-NMRV075 aluminium worm reducer mining conveyor and heavy industrial applications\" 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;\">&#9866; Mining Conveyor Head Drives<\/strong><br \/><span style=\"font-size:13px;color:#444;\">Head and tail drives for medium-duty ore, coal, and aggregate belt conveyors. 233 Nm handles loaded belt tension at moderate speeds. 9 kg enables underground installation without overhead crane.<\/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;\">&#9781; Industrial Agitator Drives<\/strong><br \/><span style=\"font-size:13px;color:#444;\">Mixing vessel drives for chemical processing, water treatment, and food production. &Oslash;28 or &Oslash;35 output shaft matches standard agitator shaft couplings directly.<\/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; Heavy Automation Equipment<\/strong><br \/><span style=\"font-size:13px;color:#444;\">Palletiser main drives, heavy-duty indexing tables, and robotic cell conveyor drives exceeding NMRV063 torque capacity. FA and FB flanges for direct machine mounting.<\/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; Pump and Compressor Drives<\/strong><br \/><span style=\"font-size:13px;color:#444;\">Low-speed drives for dosing pumps, small compressors, and ventilation blower mechanisms requiring up to 3 kW input power.<\/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;\">Select the NMRV075 when your application requires output torque between 130 Nm and 233 Nm at input power up to 3 kW. Step up to the NMRV090 at 302 Nm for heavier loads. The NMRV063 at 167 Nm is more cost-effective for lighter applications or where 5 output flange options are needed.<\/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 mounting 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\/nmrv-worm-gearbox-shaft-sizes.webp\" alt=\"NMRV worm reducer output shaft sizes and keyway dimensions all models including NMRV075\" 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; Aluminium vs Cast Iron &#8211; Heavy-Duty 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;\">At the 75 mm size class, the weight difference between aluminium and cast iron becomes increasingly significant for installation logistics. The NMRV075 at 9 kg can be handled by one or two workers; the cast iron equivalent at 15-20 kg may require mechanical lifting assistance.<\/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 NMRV<\/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 Dissipation<\/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;\">Noise<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Low<\/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;\">IEC Motor<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Direct B5\/B14<\/td>\n<td style=\"padding:5px 6px;border-bottom:1px solid #ddd;font-size:12px;\">Adaptor often needed<\/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; What is the maximum output torque of the EP-NMRV075?<\/summary>\n<div style=\"padding:8px 12px;font-size:13px;color:#333;\">233 Nm at 30:1 ratio with 0.75 kW input. At 100:1 ratio with 3 kW input: 206 Nm at 14 rpm output speed. Verify service factor is adequate for your application shock loading profile.<\/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; Why does the NMRV075 support IEC frame 100 and 112?<\/summary>\n<div style=\"padding:8px 12px;font-size:13px;color:#333;\">The larger 75 mm centre distance provides sufficient input flange diameter for IEC 100 and 112 frames. This makes the NMRV075 the first NMRV size suitable for 1.5 kW to 3 kW motor applications.<\/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 are the PC071 and PC080 helical pre-stage options?<\/summary>\n<div style=\"padding:8px 12px;font-size:13px;color:#333;\">Helical gear pre-stages that bolt onto the NMRV075 input flange. PC071 provides ratios 73.4 to 293.8:1. PC080 provides ratios 75 to 150:1. Both offer higher efficiency than double-worm at comparable ratios.<\/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; When should I specify the &Oslash;35 mm output shaft?<\/summary>\n<div style=\"padding:8px 12px;font-size:13px;color:#333;\">Choose the 35 mm option when output shaft radial or axial loads exceed the 28 mm shaft rating, or when the driven equipment uses 35 mm bore couplings or sprockets as its standard.<\/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 thermal capacity of the EP-NMRV075 at 3 kW?<\/summary>\n<div style=\"padding:8px 12px;font-size:13px;color:#333;\">At 3 kW continuous input, verify the thermal service factor remains above 1.0. For ambient temperatures above 30 degrees C at 3 kW, consider duty cycle reduction or supplementary fan cooling to maintain thermal margin.<\/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\": \"Max torque?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"233 Nm at 0.75 kW, 30:1 ratio.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Frame 100\\\/112?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes, first NMRV with 100\\\/112.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"PC helical pre-stage?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"PC071 to 293.8:1, PC080 to 150:1.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"35 mm output?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"For heavier loads or 35 mm bore couplings.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"3 kW thermal?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Check service factor above 1.0.\"\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;NMRV075 on our underground conveyor drives. 9 kg means our crew installs without a crane. Running 3 shifts at 200 Nm continuous with zero downtime in 14 months.&rdquo;<\/p>\n<p><span style=\"font-size:11px;color:#666;\"><b>Phil W.<\/b> &#8211; Goldfields Mining Co. (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;Upgraded our agitator drives from cast iron. NMRV075 at 35 mm output matches our mixing shaft directly. 50% lighter &#8211; simplified our vessel mounting frames significantly.&rdquo;<\/p>\n<p><span style=\"font-size:11px;color:#666;\"><b>Martin K.<\/b> &#8211; ChemProcess AG (Germany)<\/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;PC080 pre-stage plus NMRV075 on our palletiser main drives. 150:1 ratio with better efficiency than our previous double-worm setup. Clean compact installation.&rdquo;<\/p>\n<p><span style=\"font-size:11px;color:#666;\"><b>David L.<\/b> &#8211; TransPack Ltd (United Kingdom)<\/span><\/div>\n<\/div>\n<p><script type=\"application\/ld+json\">{\n    \"@context\": \"https:\\\/\\\/schema.org\",\n    \"@type\": \"Product\",\n    \"name\": \"EP-NMRV075 Aluminium Worm Reducer\",\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\": \"Phil W.\"\n            },\n            \"reviewRating\": {\n                \"@type\": \"Rating\",\n                \"ratingValue\": \"5\",\n                \"bestRating\": \"5\"\n            },\n            \"reviewBody\": \"Underground conveyor 3 shifts, 14 months zero downtime\"\n        },\n        {\n            \"@type\": \"Review\",\n            \"author\": {\n                \"@type\": \"Person\",\n                \"name\": \"Martin K.\"\n            },\n            \"reviewRating\": {\n                \"@type\": \"Rating\",\n                \"ratingValue\": \"5\",\n                \"bestRating\": \"5\"\n            },\n            \"reviewBody\": \"Agitator 50% lighter, 35mm direct match\"\n        },\n        {\n            \"@type\": \"Review\",\n            \"author\": {\n                \"@type\": \"Person\",\n                \"name\": \"David L.\"\n            },\n            \"reviewRating\": {\n                \"@type\": \"Rating\",\n                \"ratingValue\": \"5\",\n                \"bestRating\": \"5\"\n            },\n            \"reviewBody\": \"PC080 palletiser, better efficiency than double-worm\"\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; IEC Motors:<\/b> Frames 56-112, B5 and B14. <b>&#9878; Output Flanges:<\/b> FA, FB. <b>&#9878; Torque Arms:<\/b> K1=200mm. <b>&#9881; Covers:<\/b> N2=74mm. <b>&#9881; Pre-Stages:<\/b> PC071, PC080 helical units.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/reducers-worm.xyz\/wp-content\/uploads\/2026\/06\/torque-arm-for-nmrv-gearbox.webp\" alt=\"Torque arm for NMRV worm reducer shaft-mount installation\" style=\"max-width:100%;height:auto;margin:8px 0;\"><img decoding=\"async\" src=\"https:\/\/reducers-worm.xyz\/wp-content\/uploads\/2026\/06\/nmrv-worm-gearbox-protective-cover-2.webp\" alt=\"NMRV worm gearbox protective cover for input shaft\" 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-NMRV075 Quote Today<\/h2>\n<p style=\"color:#cde;font-size:13px;margin:0 0 12px;\">Contact Ever Power for pricing and OEM quantities. Email: sales@reducers-worm.xyz<\/p>\n<p><a href=\"\/zh\/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=\"\/zh\/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-NMRV075 aluminium worm reducer delivers up to 233 Nm across ratios 7.5:1 to 100:1 at 9 kg. Centre distance 75 mm, &Oslash;28\/35 mm output, IEC 56-112 motor frames, FA\/FB output flanges. Input 0.25-3 kW. Bridges the NMRV line into serious medium-duty territory for mining conveyors, industrial agitators, and heavy automation drives.<\/p>","protected":false},"featured_media":1570,"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":[1261,1265,1263,1262,1264],"class_list":{"0":"post-1937","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-aluminium-worm-reducer","7":"product_tag-heavy-duty-aluminium-worm-reducer","8":"product_tag-iec-frame-112-worm-gearmotor","9":"product_tag-medium-industrial-worm-gear-speed-reducer","10":"product_tag-nmrv075-worm-gearbox","11":"product_tag-worm-reducer-75mm","13":"first","14":"instock","15":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/reducers-worm.xyz\/zh\/wp-json\/wp\/v2\/product\/1937","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/reducers-worm.xyz\/zh\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/reducers-worm.xyz\/zh\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/reducers-worm.xyz\/zh\/wp-json\/wp\/v2\/comments?post=1937"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/reducers-worm.xyz\/zh\/wp-json\/wp\/v2\/media\/1570"}],"wp:attachment":[{"href":"https:\/\/reducers-worm.xyz\/zh\/wp-json\/wp\/v2\/media?parent=1937"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/reducers-worm.xyz\/zh\/wp-json\/wp\/v2\/product_brand?post=1937"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/reducers-worm.xyz\/zh\/wp-json\/wp\/v2\/product_cat?post=1937"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/reducers-worm.xyz\/zh\/wp-json\/wp\/v2\/product_tag?post=1937"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}