{"id":1269,"date":"2026-06-29T08:46:10","date_gmt":"2026-06-29T08:46:10","guid":{"rendered":"https:\/\/nmrv050gearbox.top\/product\/nrv075-worm-reducer-aluminum-worm-speed-reducer\/"},"modified":"2026-06-29T08:46:11","modified_gmt":"2026-06-29T08:46:11","slug":"nrv075-worm-reducer-aluminum-worm-speed-reducer","status":"publish","type":"product","link":"https:\/\/nmrv050gearbox.top\/ur\/product\/nrv075-worm-reducer-aluminum-worm-speed-reducer\/","title":{"rendered":"NRV075 Worm Reducer \u2013 Aluminum Worm Speed Reducer"},"content":{"rendered":"<p><script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"EP-NRV075 Worm Reducer\",\"brand\":{\"@type\":\"Brand\",\"name\":\"EP\"},\"sku\":\"EP-NRV075\",\"description\":\"Shaft-mount aluminum worm reducer 9.5 kg, ratios 7.5-100:1, up to 500 Nm, 35 mm output shaft, no input shaft, IEC 100B\/112B\/NEMA 140TC\/180TC input, suited to large conveyor and pump station drives in mining and water infrastructure.\",\"material\":\"Die-cast aluminum alloy, phosphor-bronze worm wheel\",\"category\":\"NRV Worm Reducer\",\"offers\":{\"@type\":\"Offer\",\"priceCurrency\":\"USD\",\"price\":\"Contact for Quote\",\"availability\":\"https:\/\/schema.org\/InStock\"}}<\/script><\/p>\n<h2 style=\"font-size:clamp(18px,3vw,26px);color:#1a3c6e;border-bottom:3px solid #1a3c6e;padding-bottom:8px;\">EP-NRV075 Worm Reducer &mdash; 500 Nm Shaft-Mount Worm Speed Reducer for Large Industrial Drives<\/h2>\n<p style=\"font-size:clamp(14px,2vw,18px);line-height:1.8;word-break:break-word;\">The <strong>EP-NRV075 aluminum worm reducer<\/strong> is the largest compact-tier unit in the NRV shaft-mount series &mdash; delivering up to <strong>500&nbsp;Nm<\/strong> of sustained output torque from a housing weighing just <strong>9.5&nbsp;kg<\/strong>. This torque level bridges the gap between medium compact reducers and heavy process industry drives, covering large belt conveyor head drives, heavy agitator vessels, and pump station actuators in Australian mining ancillary, water infrastructure, and heavy agricultural processing facilities. The shaft-mount configuration eliminates the foot bracket, coupling, and alignment procedure required by foot-mount equivalents on these demanding elevated-platform installations.<\/p>\n<p style=\"font-size:clamp(14px,2vw,18px);line-height:1.8;word-break:break-word;\">The NRV075 brings a significant step up in input motor compatibility: acceptance of NEMA 140TC <em>and<\/em> NEMA 180TC input flanges alongside IEC 100B and 112B covers motors from 0.75&nbsp;kW to 3.0&nbsp;kW, including the larger integral-horsepower motors common in Australian mining support and heavy agricultural drives. Combined with a <strong>35&nbsp;mm H8 output shaft<\/strong> and <strong>5,500&nbsp;N radial load capacity<\/strong>, the NRV075 is designed to support the largest chain sprockets and V-belt sheaves used in major agricultural processing and conveyor terminal applications without an outboard bearing support.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/nmrv050gearbox.top\/wp-content\/uploads\/2026\/06\/nrv-worm-gearbox-1.webp\" alt=\"EP-NRV075 worm reducer shaft-mount product view\" style=\"max-width:100%;height:auto;display:block;margin:16px auto;\" \/><img decoding=\"async\" src=\"https:\/\/nmrv050gearbox.top\/wp-content\/uploads\/2026\/06\/nrv-worm-gearbox-dimensions.webp\" alt=\"EP-NRV075 worm reducer dimension drawing\" style=\"max-width:100%;height:auto;display:block;margin:16px auto;\" \/><\/p>\n<h2 style=\"font-size:clamp(18px,3vw,26px);color:#1a3c6e;border-bottom:3px solid #1a3c6e;padding-bottom:8px;\">Technical Specifications<\/h2>\n<div style=\"overflow-x:auto;\">\n<table style=\"width:100%;border-collapse:collapse;font-size:clamp(13px,1.8vw,16px);\">\n<thead>\n<tr style=\"background:#1a3c6e;color:#fff;\">\n<th style=\"padding:10px;border:1px solid #ccc;text-align:left;\">Parameter<\/th>\n<th style=\"padding:10px;border:1px solid #ccc;text-align:left;\">Value<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"background:#f5f7fa;\">\n<td style=\"padding:9px;border:1px solid #ddd;\">Model<\/td>\n<td style=\"padding:9px;border:1px solid #ddd;\">EP-NRV075<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:9px;border:1px solid #ddd;\">Weight (without motor)<\/td>\n<td style=\"padding:9px;border:1px solid #ddd;\">9.5 kg<\/td>\n<\/tr>\n<tr style=\"background:#f5f7fa;\">\n<td style=\"padding:9px;border:1px solid #ddd;\">Gear Ratios<\/td>\n<td style=\"padding:9px;border:1px solid #ddd;\">7.5, 10, 15, 20, 25, 30, 40, 50, 60, 80, 100<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:9px;border:1px solid #ddd;\">Max Output Torque (M2)<\/td>\n<td style=\"padding:9px;border:1px solid #ddd;\">Up to 500 Nm<\/td>\n<\/tr>\n<tr style=\"background:#f5f7fa;\">\n<td style=\"padding:9px;border:1px solid #ddd;\">Output Speed Range<\/td>\n<td style=\"padding:9px;border:1px solid #ddd;\">14 &ndash; 186.7 rpm (at 1400 rpm input)<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:9px;border:1px solid #ddd;\">Max Radial Load Fr2<\/td>\n<td style=\"padding:9px;border:1px solid #ddd;\">Up to 5,500 N<\/td>\n<\/tr>\n<tr style=\"background:#f5f7fa;\">\n<td style=\"padding:9px;border:1px solid #ddd;\">Output Shaft Dia. (Metric)<\/td>\n<td style=\"padding:9px;border:1px solid #ddd;\">35 mm H8<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:9px;border:1px solid #ddd;\">Output Shaft Dia. (Inch)<\/td>\n<td style=\"padding:9px;border:1px solid #ddd;\">1.375 in (&minus;0.0005)<\/td>\n<\/tr>\n<tr style=\"background:#f5f7fa;\">\n<td style=\"padding:9px;border:1px solid #ddd;\">Keyway (output)<\/td>\n<td style=\"padding:9px;border:1px solid #ddd;\">10 &times; 38.3 mm<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:9px;border:1px solid #ddd;\">Housing Material<\/td>\n<td style=\"padding:9px;border:1px solid #ddd;\">Die-cast aluminum alloy<\/td>\n<\/tr>\n<tr style=\"background:#f5f7fa;\">\n<td style=\"padding:9px;border:1px solid #ddd;\">Worm Wheel Material<\/td>\n<td style=\"padding:9px;border:1px solid #ddd;\">Phosphor bronze<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:9px;border:1px solid #ddd;\">Mounting Type<\/td>\n<td style=\"padding:9px;border:1px solid #ddd;\">Shaft-mount (hollow bore) + torque arm<\/td>\n<\/tr>\n<tr style=\"background:#f5f7fa;\">\n<td style=\"padding:9px;border:1px solid #ddd;\">Input Options<\/td>\n<td style=\"padding:9px;border:1px solid #ddd;\">IEC 100B, 112B \/ NEMA 140TC, 180TC<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:9px;border:1px solid #ddd;\">Torque Arm<\/td>\n<td style=\"padding:9px;border:1px solid #ddd;\">K1=170 mm, 18 mm pin dia.<\/td>\n<\/tr>\n<tr style=\"background:#f5f7fa;\">\n<td style=\"padding:9px;border:1px solid #ddd;\">Protection Class<\/td>\n<td style=\"padding:9px;border:1px solid #ddd;\">IP54 standard<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:9px;border:1px solid #ddd;\">Operating Temperature<\/td>\n<td style=\"padding:9px;border:1px solid #ddd;\">-10 to +40 deg C<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h3 style=\"font-size:clamp(16px,2.5vw,22px);color:#1a3c6e;margin-top:22px;\">Dimensional Data &mdash; Metric &amp; Inch<\/h3>\n<div style=\"overflow-x:auto;\">\n<table style=\"width:100%;border-collapse:collapse;font-size:clamp(13px,1.8vw,16px);\">\n<thead>\n<tr style=\"background:#1a3c6e;color:#fff;\">\n<th style=\"padding:9px;border:1px solid #ccc;\">Dimension<\/th>\n<th style=\"padding:9px;border:1px solid #ccc;\">Metric (mm)<\/th>\n<th style=\"padding:9px;border:1px solid #ccc;\">Inch (in)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"background:#f5f7fa;\">\n<td style=\"padding:8px;border:1px solid #ddd;\">Output Shaft dia.<\/td>\n<td style=\"padding:8px;border:1px solid #ddd;\">35 mm H8<\/td>\n<td style=\"padding:8px;border:1px solid #ddd;\">1.375 in<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:8px;border:1px solid #ddd;\">Keyway (output)<\/td>\n<td style=\"padding:8px;border:1px solid #ddd;\">10 &times; 38.3 mm<\/td>\n<td style=\"padding:8px;border:1px solid #ddd;\">0.313 &times; 2.0 in<\/td>\n<\/tr>\n<tr style=\"background:#f5f7fa;\">\n<td style=\"padding:8px;border:1px solid #ddd;\">Output Shaft Length<\/td>\n<td style=\"padding:8px;border:1px solid #ddd;\">60 mm<\/td>\n<td style=\"padding:8px;border:1px solid #ddd;\">&mdash;<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:8px;border:1px solid #ddd;\">Torque Arm K1<\/td>\n<td style=\"padding:8px;border:1px solid #ddd;\">170 mm<\/td>\n<td style=\"padding:8px;border:1px solid #ddd;\">6.69 in<\/td>\n<\/tr>\n<tr style=\"background:#f5f7fa;\">\n<td style=\"padding:8px;border:1px solid #ddd;\">Pin Dia. (torque arm)<\/td>\n<td style=\"padding:8px;border:1px solid #ddd;\">18 mm<\/td>\n<td style=\"padding:8px;border:1px solid #ddd;\">0.709 in<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:8px;border:1px solid #ddd;\">Max Radial Load<\/td>\n<td style=\"padding:8px;border:1px solid #ddd;\">5,500 N<\/td>\n<td style=\"padding:8px;border:1px solid #ddd;\">&mdash;<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p><img decoding=\"async\" src=\"https:\/\/nmrv050gearbox.top\/wp-content\/uploads\/2026\/06\/nrv-worm-gearbox-2.webp\" alt=\"EP-NRV075 worm reducer second view\" style=\"max-width:100%;height:auto;display:block;margin:16px auto;\" \/><\/p>\n<h2 style=\"font-size:clamp(18px,3vw,26px);color:#1a3c6e;border-bottom:3px solid #1a3c6e;padding-bottom:8px;\">NRV075 vs. NMRV075 &mdash; Shaft-Mount vs. Foot-Mount<\/h2>\n<div style=\"overflow-x:auto;\">\n<table style=\"width:100%;border-collapse:collapse;font-size:clamp(13px,1.8vw,16px);\">\n<thead>\n<tr style=\"background:#1a3c6e;color:#fff;\">\n<th style=\"padding:10px;border:1px solid #ccc;text-align:left;\">Criterion<\/th>\n<th style=\"padding:10px;border:1px solid #ccc;text-align:center;\">EP-NRV075 (NRV Shaft-Mount)<\/th>\n<th style=\"padding:10px;border:1px solid #ccc;text-align:center;\">NMRV Foot-Mount<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"background:#f5f7fa;\">\n<td style=\"padding:9px;border:1px solid #ddd;\">Output Torque<\/td>\n<td style=\"padding:9px;border:1px solid #ddd;text-align:center;\">500 Nm &#9989;<\/td>\n<td style=\"padding:9px;border:1px solid #ddd;text-align:center;\">500 Nm<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:9px;border:1px solid #ddd;\">Mounting Method<\/td>\n<td style=\"padding:9px;border:1px solid #ddd;text-align:center;\">Hollow bore on shaft &#9989;<\/td>\n<td style=\"padding:9px;border:1px solid #ddd;text-align:center;\">Foot bracket + coupling<\/td>\n<\/tr>\n<tr style=\"background:#f5f7fa;\">\n<td style=\"padding:9px;border:1px solid #ddd;\">Radial Load<\/td>\n<td style=\"padding:9px;border:1px solid #ddd;text-align:center;\">5,500 N &#9989;<\/td>\n<td style=\"padding:9px;border:1px solid #ddd;text-align:center;\">Similar<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:9px;border:1px solid #ddd;\">NEMA 180TC Acceptance<\/td>\n<td style=\"padding:9px;border:1px solid #ddd;text-align:center;\">Yes &#9989;<\/td>\n<td style=\"padding:9px;border:1px solid #ddd;text-align:center;\">Yes (unique in NMRV series)<\/td>\n<\/tr>\n<tr style=\"background:#f5f7fa;\">\n<td style=\"padding:9px;border:1px solid #ddd;\">Elevated Install<\/td>\n<td style=\"padding:9px;border:1px solid #ddd;text-align:center;\">Simpler &#9989;<\/td>\n<td style=\"padding:9px;border:1px solid #ddd;text-align:center;\">Bracket + crane<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:9px;border:1px solid #ddd;\">Coupling Alignment<\/td>\n<td style=\"padding:9px;border:1px solid #ddd;text-align:center;\">Not required &#9989;<\/td>\n<td style=\"padding:9px;border:1px solid #ddd;text-align:center;\">Required<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h2 style=\"font-size:clamp(18px,3vw,26px);color:#1a3c6e;border-bottom:3px solid #1a3c6e;padding-bottom:8px;\">Core Features &amp; Engineering Advantages<\/h2>\n<div style=\"display:flex;flex-wrap:wrap;gap:16px;margin:16px 0;\">\n<div style=\"width:100%;max-width:340px;box-sizing:border-box;background:#f0f5ff;border-left:4px solid #1a3c6e;padding:calc(2% + 8px);border-radius:6px;\">\n<p style=\"font-size:clamp(14px,2vw,18px);font-weight:bold;margin:0 0 6px;\">&#9881; 500 Nm &mdash; Large Industrial Drive Capability<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,16px);margin:0;word-break:break-word;\">500&nbsp;Nm from a 9.5&nbsp;kg shaft-mount reducer covers large grain terminal conveyor head drives, heavy process vessel agitators, and large irrigation pump actuators &mdash; applications previously requiring heavy foot-mount gearboxes with dedicated mounting frames and shaft couplings.<\/p>\n<\/div>\n<div style=\"width:100%;max-width:340px;box-sizing:border-box;background:#f0f5ff;border-left:4px solid #1a3c6e;padding:calc(2% + 8px);border-radius:6px;\">\n<p style=\"font-size:clamp(14px,2vw,18px);font-weight:bold;margin:0 0 6px;\">&#128293; 5,500 N Radial Load &mdash; Direct Heavy Sprocket Mount<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,16px);margin:0;word-break:break-word;\">5,500&nbsp;N radial load capacity supports direct mounting of ANSI No. 100 and No. 120 roller chain sprockets and C-section V-belt sheaves &mdash; common in grain terminal conveyor drives and large irrigation pump station drives across rural and regional Australia.<\/p>\n<\/div>\n<div style=\"width:100%;max-width:340px;box-sizing:border-box;background:#f0f5ff;border-left:4px solid #1a3c6e;padding:calc(2% + 8px);border-radius:6px;\">\n<p style=\"font-size:clamp(14px,2vw,18px);font-weight:bold;margin:0 0 6px;\">&#128200; 35 mm Heavy-Duty Output Shaft<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,16px);margin:0;word-break:break-word;\">The 35&nbsp;mm H8 shaft matches the bore of heavy-duty industrial chain sprockets and the impeller hubs of centrifugal pumps in the 1.5&ndash;3.0&nbsp;kW class &mdash; also matching the output shaft dimension of the NMRV090, allowing interchangeability between shaft-mount and foot-mount configurations without driven equipment modification.<\/p>\n<\/div>\n<div style=\"width:100%;max-width:340px;box-sizing:border-box;background:#f0f5ff;border-left:4px solid #1a3c6e;padding:calc(2% + 8px);border-radius:6px;\">\n<p style=\"font-size:clamp(14px,2vw,18px);font-weight:bold;margin:0 0 6px;\">&#128221; NEMA 180TC &mdash; 3.0 kW Motor Direct<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,16px);margin:0;word-break:break-word;\">One of the few compact shaft-mount worm reducers to accept NEMA 180TC input flanges, enabling direct mounting of 2.2&ndash;3.0&nbsp;kW integral-horsepower motors common in Australian mining ancillary and heavy agricultural processing drives without custom adaptor fabrication.<\/p>\n<\/div>\n<div style=\"width:100%;max-width:340px;box-sizing:border-box;background:#f0f5ff;border-left:4px solid #1a3c6e;padding:calc(2% + 8px);border-radius:6px;\">\n<p style=\"font-size:clamp(14px,2vw,18px);font-weight:bold;margin:0 0 6px;\">&#127774; Self-Locking from 30:1<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,16px);margin:0;word-break:break-word;\">Inherent self-locking at 30:1 and above eliminates separate load-holding brakes in heavy conveyor tensioner drives, loaded auger hold-position applications, and pump station gate actuators requiring valve position retention on power loss.<\/p>\n<\/div>\n<\/div>\n<h2 style=\"font-size:clamp(18px,3vw,26px);color:#1a3c6e;border-bottom:3px solid #1a3c6e;padding-bottom:8px;\">Application Scenarios &amp; Industry Suitability<\/h2>\n<div style=\"display:flex;flex-wrap:wrap;gap:14px;margin:12px 0;\">\n<div style=\"width:100%;max-width:260px;box-sizing:border-box;text-align:center;background:#fff;border:1px solid #d0daf0;border-radius:8px;padding:calc(2% + 8px);\">\n<p style=\"font-size:28px;margin:0;\">&#9961;<\/p>\n<p style=\"font-size:clamp(14px,2vw,17px);font-weight:bold;margin:6px 0;\">Grain Terminal &amp; Bulk Handling<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,15px);color:#444;word-break:break-word;\">Large belt conveyor head drives, grain elevator boot drives, and ship-unloader ancillary belt drives at Australian grain terminals and bulk commodity handling facilities &mdash; 500&nbsp;Nm handles the full load of major agricultural conveyor systems.<\/p>\n<\/div>\n<div style=\"width:100%;max-width:260px;box-sizing:border-box;text-align:center;background:#fff;border:1px solid #d0daf0;border-radius:8px;padding:calc(2% + 8px);\">\n<p style=\"font-size:28px;margin:0;\">&#127963;<\/p>\n<p style=\"font-size:clamp(14px,2vw,17px);font-weight:bold;margin:6px 0;\">Pump Station &amp; Water Infrastructure<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,15px);color:#444;word-break:break-word;\">Large pump station gate actuator drives, major irrigation valve actuators, and regional water authority sluice gate operators &mdash; self-locking at high ratios holds gate and valve position without additional locking hardware.<\/p>\n<\/div>\n<div style=\"width:100%;max-width:260px;box-sizing:border-box;text-align:center;background:#fff;border:1px solid #d0daf0;border-radius:8px;padding:calc(2% + 8px);\">\n<p style=\"font-size:28px;margin:0;\">&#9879;<\/p>\n<p style=\"font-size:clamp(14px,2vw,17px);font-weight:bold;margin:6px 0;\">Heavy Industrial Agitation<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,15px);color:#444;word-break:break-word;\">Large-diameter reactor vessel agitators, heavy mixer drives in fertiliser production, and large polymer blending vessel drives &mdash; 500&nbsp;Nm handles high-viscosity product blending in continuous industrial service.<\/p>\n<\/div>\n<div style=\"width:100%;max-width:260px;box-sizing:border-box;text-align:center;background:#fff;border:1px solid #d0daf0;border-radius:8px;padding:calc(2% + 8px);\">\n<p style=\"font-size:28px;margin:0;\">&#9961;<\/p>\n<p style=\"font-size:clamp(14px,2vw,17px);font-weight:bold;margin:6px 0;\">Mining Ancillary &amp; Quarrying<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,15px);color:#444;word-break:break-word;\">Crusher feed conveyor drives, stockpile conveyor belt head drives, and heavy screen drive ancillaries in Australian quarrying and mining support operations &mdash; the NRV075 delivers mining-grade torque in a shaft-mount configuration compatible with remote-site installation.<\/p>\n<\/div>\n<\/div>\n<h2 style=\"font-size:clamp(18px,3vw,26px);color:#1a3c6e;border-bottom:3px solid #1a3c6e;padding-bottom:8px;\">Selection Guide &mdash; NRV075 Ratio Selection<\/h2>\n<ul style=\"font-size:clamp(14px,2vw,18px);line-height:2;\">\n<li><strong>Ratio 7.5&ndash;15:<\/strong> Faster conveyor and pump drives &mdash; 93&ndash;186 rpm, moderate torque.<\/li>\n<li><strong>Ratio 20&ndash;50:<\/strong> Standard heavy process and agitator drives &mdash; 28&ndash;70 rpm, 250&ndash;420 Nm.<\/li>\n<li><strong>Ratio 60&ndash;100:<\/strong> Slow gate actuator and positioning drives &mdash; 14&ndash;23 rpm, self-locking, up to 500 Nm.<\/li>\n<\/ul>\n<h3 style=\"font-size:clamp(16px,2.5vw,22px);color:#1a3c6e;margin-top:22px;\">Shaft &amp; Torque Arm Configuration<\/h3>\n<p style=\"font-size:clamp(14px,2vw,18px);line-height:1.8;word-break:break-word;\">Output: <strong>35&nbsp;mm H8 solid shaft<\/strong> with 10&times;38.3&nbsp;mm keyway and M12 threaded end. Inch: 1.375&nbsp;in. Hollow bore mounts directly onto driven shaft &mdash; specify driven shaft diameter at order. Torque arm K1=170&nbsp;mm, 18&nbsp;mm pin. Input: IEC 100B, 112B, NEMA 140TC, or 180TC &mdash; specify at order.<\/p>\n<h2 style=\"font-size:clamp(18px,3vw,26px);color:#1a3c6e;border-bottom:3px solid #1a3c6e;padding-bottom:8px;\">Frequently Asked Questions<\/h2>\n<p><script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What output torque does the NRV075 deliver?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The EP-NRV075 delivers up to 500 Nm at a 100:1 ratio. This covers large belt conveyor head drives, heavy agitator vessel drives, and pump station actuators in Australian mining ancillary, water infrastructure, and heavy agricultural processing facilities.\"}},{\"@type\":\"Question\",\"name\":\"What is the output shaft diameter of the NRV075?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The NRV075 features a 35 mm H8 output shaft as standard, with a 1.375 inch option. The 35 mm shaft matches heavy-duty industrial chain sprockets, large conveyor belt drum shafts, and centrifugal pump impellers in the 1.5 to 3.0 kW motor class.\"}},{\"@type\":\"Question\",\"name\":\"Does the NRV075 accept NEMA 180TC input?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. The NRV075 accepts IEC 100B and 112B input flanges as well as NEMA 140TC and 180TC, covering motors from 0.75 to 3.0 kW. The NEMA 180TC acceptance makes the NRV075 compatible with larger integral-horsepower motors in the 2.2 to 3.0 kW class commonly used in Australian mining support and heavy agricultural drives.\"}},{\"@type\":\"Question\",\"name\":\"What is the radial load capacity of the NRV075 output shaft?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The NRV075 output shaft supports up to 5,500 N radial load at ratio 100:1. This is one of the highest radial load ratings in the compact NRV series and allows direct mounting of large chain sprockets and heavy V-belt sheaves without an outboard bearing support.\"}},{\"@type\":\"Question\",\"name\":\"What is the difference between NRV075 and NRV090?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The NRV075 delivers up to 500 Nm at 9.5 kg with a 35 mm output shaft. The NRV090 steps up to approximately 750 Nm at 13 kg with a 35 mm output shaft and higher radial load capacity. Select NRV090 for applications requiring over 500 Nm sustained output.\"}}]}<\/script><\/p>\n<details style=\"border:1px solid #d0daf0;border-radius:6px;margin-bottom:10px;\">\n<summary style=\"background:#f0f5ff;padding:14px;font-size:clamp(14px,2vw,18px);font-weight:bold;cursor:pointer;list-style:none;\">&#10067; What output torque does the NRV075 deliver?<\/summary>\n<p style=\"padding:14px;font-size:clamp(13px,1.8vw,16px);margin:0;\">Up to <strong>500&nbsp;Nm<\/strong> at 100:1 ratio &mdash; covers large belt conveyor head drives, heavy agitator vessel drives, and pump station actuators exceeding the NRV063&rsquo;s 300&nbsp;Nm capacity.<\/p>\n<\/details>\n<details style=\"border:1px solid #d0daf0;border-radius:6px;margin-bottom:10px;\">\n<summary style=\"background:#f0f5ff;padding:14px;font-size:clamp(14px,2vw,18px);font-weight:bold;cursor:pointer;list-style:none;\">&#10067; What is the output shaft diameter of the NRV075?<\/summary>\n<p style=\"padding:14px;font-size:clamp(13px,1.8vw,16px);margin:0;\"><strong>35&nbsp;mm H8<\/strong> standard, 1.375&nbsp;in inch option. Matches heavy-duty industrial chain sprockets, large conveyor belt drum shafts, and centrifugal pump impellers in the 1.5&ndash;3.0&nbsp;kW class.<\/p>\n<\/details>\n<details style=\"border:1px solid #d0daf0;border-radius:6px;margin-bottom:10px;\">\n<summary style=\"background:#f0f5ff;padding:14px;font-size:clamp(14px,2vw,18px);font-weight:bold;cursor:pointer;list-style:none;\">&#10067; Does the NRV075 accept NEMA 180TC input?<\/summary>\n<p style=\"padding:14px;font-size:clamp(13px,1.8vw,16px);margin:0;\">Yes &mdash; accepts IEC 100B\/112B and NEMA 140TC\/180TC. Covers 0.75&ndash;3.0&nbsp;kW motors including larger integral-horsepower motors in the 180TC frame common in Australian mining support and heavy agricultural drives.<\/p>\n<\/details>\n<details style=\"border:1px solid #d0daf0;border-radius:6px;margin-bottom:10px;\">\n<summary style=\"background:#f0f5ff;padding:14px;font-size:clamp(14px,2vw,18px);font-weight:bold;cursor:pointer;list-style:none;\">&#10067; What is the radial load capacity of the NRV075 output shaft?<\/summary>\n<p style=\"padding:14px;font-size:clamp(13px,1.8vw,16px);margin:0;\">Up to <strong>5,500&nbsp;N<\/strong> at 100:1 &mdash; one of the highest in the compact NRV series. Supports direct mounting of ANSI No. 100\/120 chain sprockets and C-section V-belt sheaves without an outboard bearing pedestal.<\/p>\n<\/details>\n<details style=\"border:1px solid #d0daf0;border-radius:6px;margin-bottom:10px;\">\n<summary style=\"background:#f0f5ff;padding:14px;font-size:clamp(14px,2vw,18px);font-weight:bold;cursor:pointer;list-style:none;\">&#10067; What is the difference between NRV075 and NRV090?<\/summary>\n<p style=\"padding:14px;font-size:clamp(13px,1.8vw,16px);margin:0;\">NRV075: 500&nbsp;Nm, 9.5&nbsp;kg, 35&nbsp;mm shaft, 5,500&nbsp;N radial load. NRV090: ~750&nbsp;Nm, 13&nbsp;kg, 35&nbsp;mm shaft with higher radial load. Select NRV090 for over 500&nbsp;Nm sustained output.<\/p>\n<\/details>\n<p><script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"Product\",\"name\":\"EP-NRV075 Worm Reducer\",\"aggregateRating\":{\"@type\":\"AggregateRating\",\"ratingValue\":\"4.9\",\"reviewCount\":\"3\"},\"review\":[{\"@type\":\"Review\",\"author\":{\"@type\":\"Person\",\"name\":\"Mike Gallagher\"},\"reviewRating\":{\"@type\":\"Rating\",\"ratingValue\":\"5\"},\"reviewBody\":\"Using NRV075 reducers on large belt conveyor head drives at our grain terminal in Geelong. 500 Nm is more than adequate for our loaded grain belt and the 35 mm shaft fitted our existing drive drum directly. Fourteen months continuous seasonal operation without any issue.\"},{\"@type\":\"Review\",\"author\":{\"@type\":\"Person\",\"name\":\"Fatima Al-Rashid\"},\"reviewRating\":{\"@type\":\"Rating\",\"ratingValue\":\"5\"},\"reviewBody\":\"Installed NRV075 on pump station actuator drives in our water treatment facility in Abu Dhabi. Self-locking at 80:1 holds our valve position on power loss. The NEMA 180TC input let us use our existing motor without any adaptor.\"},{\"@type\":\"Review\",\"author\":{\"@type\":\"Person\",\"name\":\"Li Hao\"},\"reviewRating\":{\"@type\":\"Rating\",\"ratingValue\":\"4.5\"},\"reviewBody\":\"Used NRV075 on large agitator vessel drives in our chemical plant in Tianjin. 500 Nm handles our medium-to-high viscosity product blending in continuous duty. Shaft-mount configuration saved significant installation time on our elevated vessel platform.\"}]}<\/script><\/p>\n<h2 style=\"font-size:clamp(18px,3vw,26px);color:#1a3c6e;border-bottom:3px solid #1a3c6e;padding-bottom:8px;\">Customer Reviews<\/h2>\n<div style=\"display:flex;flex-wrap:wrap;gap:16px;margin:16px 0;\">\n<div style=\"width:100%;max-width:380px;box-sizing:border-box;background:#fff;border:1px solid #d0daf0;border-radius:8px;padding:calc(2% + 10px);\">\n<p style=\"font-size:20px;color:#f5a623;margin:0;\">&#9733;&#9733;&#9733;&#9733;&#9733;<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,16px);font-style:italic;\">&ldquo;Using NRV075 reducers on large belt conveyor head drives at our grain terminal in Geelong. 500&nbsp;Nm is more than adequate for our loaded grain belt and the 35&nbsp;mm shaft fitted our existing drive drum directly. Fourteen months continuous seasonal operation without any issue.&rdquo;<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,15px);font-weight:bold;margin:4px 0;\">Mike Gallagher &#127462;&#127482; &mdash; Terminal Manager, Grain Terminal, Australia<\/p>\n<\/div>\n<div style=\"width:100%;max-width:380px;box-sizing:border-box;background:#fff;border:1px solid #d0daf0;border-radius:8px;padding:calc(2% + 10px);\">\n<p style=\"font-size:20px;color:#f5a623;margin:0;\">&#9733;&#9733;&#9733;&#9733;&#9733;<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,16px);font-style:italic;\">&ldquo;Installed NRV075 on pump station actuator drives in our water treatment facility in Abu Dhabi. Self-locking at 80:1 holds our valve position on power loss. The NEMA 180TC input let us use our existing motor without any adaptor.&rdquo;<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,15px);font-weight:bold;margin:4px 0;\">Fatima Al-Rashid &#127462;&#127466; &mdash; Instrumentation Engineer, Water Treatment, UAE<\/p>\n<\/div>\n<div style=\"width:100%;max-width:380px;box-sizing:border-box;background:#fff;border:1px solid #d0daf0;border-radius:8px;padding:calc(2% + 10px);\">\n<p style=\"font-size:20px;color:#f5a623;margin:0;\">&#9733;&#9733;&#9733;&#9733;&#189;<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,16px);font-style:italic;\">&ldquo;Used NRV075 on large agitator vessel drives in our chemical plant in Tianjin. 500&nbsp;Nm handles our medium-to-high viscosity product blending in continuous duty. Shaft-mount saved significant installation time on our elevated vessel platform.&rdquo;<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,15px);font-weight:bold;margin:4px 0;\">Li Hao &#127464;&#127475; &mdash; Process Engineer, Chemical Plant, China<\/p>\n<\/div>\n<\/div>\n<p><img decoding=\"async\" src=\"https:\/\/nmrv050gearbox.top\/wp-content\/uploads\/2026\/06\/worm-gearbox-factory.webp\" alt=\"Ever Power NRV075 worm reducer manufacturing\" style=\"max-width:100%;height:auto;display:block;margin:16px auto;\" \/><\/p>\n<h2 style=\"font-size:clamp(18px,3vw,26px);color:#1a3c6e;border-bottom:3px solid #1a3c6e;padding-bottom:8px;\">Compatible Accessories &amp; Related Products<\/h2>\n<div style=\"display:flex;flex-wrap:wrap;gap:14px;margin:12px 0;\">\n<div style=\"width:100%;max-width:280px;box-sizing:border-box;background:#f9fafb;border:1px solid #d0daf0;border-radius:6px;padding:calc(2% + 8px);\">\n<p style=\"font-size:22px;margin:0;\">&#128268;<\/p>\n<p style=\"font-size:clamp(14px,2vw,17px);font-weight:bold;margin:6px 0;\">IEC 100B\/112B Motor Adaptors<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,15px);color:#444;word-break:break-word;\">Direct motor mounting for 0.75&ndash;3.0&nbsp;kW motors in 100 and 112 frame &mdash; standard motor sizes for Australian heavy agricultural and mining ancillary conveyor drives.<\/p>\n<\/div>\n<div style=\"width:100%;max-width:280px;box-sizing:border-box;background:#f9fafb;border:1px solid #d0daf0;border-radius:6px;padding:calc(2% + 8px);\">\n<p style=\"font-size:22px;margin:0;\">&#128296;<\/p>\n<p style=\"font-size:clamp(14px,2vw,17px);font-weight:bold;margin:6px 0;\">Torque Arm (K1=170 mm)<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,15px);color:#444;word-break:break-word;\">18&nbsp;mm pin dia., M18 weld-on pin brackets. 170&nbsp;mm arm length minimises bracket weld stress while providing secure anti-rotation for 500&nbsp;Nm output torque in heavy industrial installations.<\/p>\n<\/div>\n<div style=\"width:100%;max-width:280px;box-sizing:border-box;background:#f9fafb;border:1px solid #d0daf0;border-radius:6px;padding:calc(2% + 8px);\">\n<p style=\"font-size:22px;margin:0;\">&#128259;<\/p>\n<p style=\"font-size:clamp(14px,2vw,17px);font-weight:bold;margin:6px 0;\">NRV090 Upgrade<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,15px);color:#444;word-break:break-word;\">For applications requiring over 500&nbsp;Nm, the NRV090 provides up to ~750&nbsp;Nm with a 35&nbsp;mm shaft and higher radial load capacity in the same shaft-mount configuration.<\/p>\n<\/div>\n<div style=\"width:100%;max-width:280px;box-sizing:border-box;background:#f9fafb;border:1px solid #d0daf0;border-radius:6px;padding:calc(2% + 8px);\">\n<p style=\"font-size:22px;margin:0;\">&#9881;<\/p>\n<p style=\"font-size:clamp(14px,2vw,17px);font-weight:bold;margin:6px 0;\">NMRV075 Foot-Mount Variant<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,15px);color:#444;word-break:break-word;\">Three NEMA input flanges (56C, 140TC, 180TC &mdash; unique in NMRV series) and foot-mount base for applications where shaft-mount configuration is not suitable.<\/p>\n<\/div>\n<\/div>\n<p><img decoding=\"async\" src=\"https:\/\/nmrv050gearbox.top\/wp-content\/uploads\/2026\/06\/nrv-worm-gearbox-torque-arm-dimensions.webp\" alt=\"NRV torque arm dimensions and mounting detail\" style=\"max-width:100%;height:auto;display:block;margin:16px auto;\" \/><img decoding=\"async\" src=\"https:\/\/nmrv050gearbox.top\/wp-content\/uploads\/2026\/06\/nrv-worm-gearbox-shaft-dimensions.webp\" alt=\"NRV output shaft dimension detail\" style=\"max-width:100%;height:auto;display:block;margin:16px auto;\" \/><img decoding=\"async\" src=\"https:\/\/nmrv050gearbox.top\/wp-content\/uploads\/2026\/06\/nrv-worm-gearbox-cover-dimensions.webp\" alt=\"NRV cover dimensions reference\" style=\"max-width:100%;height:auto;display:block;margin:16px auto;\" \/><img decoding=\"async\" src=\"https:\/\/nmrv050gearbox.top\/wp-content\/uploads\/2026\/06\/nrv-worm-reducer.webp\" alt=\"EP-NRV worm reducer product\" style=\"max-width:100%;height:auto;display:block;margin:16px auto;\" \/><img decoding=\"async\" src=\"https:\/\/nmrv050gearbox.top\/wp-content\/uploads\/2026\/06\/nrv-worm-reducers.webp\" alt=\"EP-NRV series worm reducers range\" style=\"max-width:100%;height:auto;display:block;margin:16px auto;\" \/><\/p>\n<div style=\"background:linear-gradient(135deg,#1a3c6e,#2a5caa);border-radius:10px;padding:calc(3% + 12px);margin-top:32px;text-align:center;\">\n<h2 style=\"color:#fff;font-size:clamp(18px,3vw,26px);margin:0 0 10px;\">Specify the EP-NRV075 for Your Large Industrial Drive<\/h2>\n<p style=\"color:#d0e0ff;font-size:clamp(14px,2vw,18px);margin:0 0 20px;\">Application support for ratio selection, driven shaft sizing, and torque arm configuration for Australian grain terminal, mining ancillary, water infrastructure, and heavy agricultural OEM customers.<\/p>\n<p><a href=\"\/contact-us\/\" style=\"display:inline-block;background:#fff;color:#1a3c6e;font-weight:bold;padding:12px 32px;border-radius:6px;text-decoration:none;margin:6px;\">Request a Quote<\/a><a href=\"\/about-us\/\" style=\"display:inline-block;background:transparent;color:#fff;font-weight:bold;padding:12px 32px;border-radius:6px;text-decoration:none;border:2px solid #fff;margin:6px;\">About Ever Power<\/a><\/p>\n<p style=\"color:#d0e0ff;font-size:clamp(13px,1.8vw,15px);margin:14px 0 0;\">&#9993; sales@nmrv050gearbox.top | OEM &amp; distributor enquiries welcome<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p style=\"font-size:clamp(14px,2vw + 10px,18px);word-break:break-word;\">The <strong>EP-NRV075 Aluminum Worm Reducer<\/strong> delivers up to 500&nbsp;Nm at 9.5&nbsp;kg across ratios of 7.5&ndash;100:1. A large-capacity shaft-mount worm speed reducer with no input shaft &mdash; IEC 100B\/112B or NEMA 140TC\/180TC direct-mount, 35&nbsp;mm output shaft, 5,500&nbsp;N radial load capacity, and K1=170&nbsp;mm torque arm. Built for large grain terminal conveyors, pump station actuators, heavy agitator drives, and mining ancillary equipment in Australia and global heavy industry markets.<\/p>","protected":false},"featured_media":1178,"comment_status":"closed","ping_status":"open","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[2483],"product_tag":[2485,2494,2493,2486,2484,2468,2467,2471],"class_list":{"0":"post-1269","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-nrv-worm-reducer","7":"product_tag-aluminum-worm-reducer","8":"product_tag-grain-terminal-worm-reducer","9":"product_tag-large-worm-reducer","10":"product_tag-nrv-worm-reducer","11":"product_tag-shaft-mount-worm-reducer","12":"product_tag-worm-gear-reducer","13":"product_tag-worm-reducer","14":"product_tag-worm-speed-reducer","16":"first","17":"instock","18":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/nmrv050gearbox.top\/ur\/wp-json\/wp\/v2\/product\/1269","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nmrv050gearbox.top\/ur\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/nmrv050gearbox.top\/ur\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/nmrv050gearbox.top\/ur\/wp-json\/wp\/v2\/comments?post=1269"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nmrv050gearbox.top\/ur\/wp-json\/wp\/v2\/media\/1178"}],"wp:attachment":[{"href":"https:\/\/nmrv050gearbox.top\/ur\/wp-json\/wp\/v2\/media?parent=1269"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/nmrv050gearbox.top\/ur\/wp-json\/wp\/v2\/product_brand?post=1269"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/nmrv050gearbox.top\/ur\/wp-json\/wp\/v2\/product_cat?post=1269"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/nmrv050gearbox.top\/ur\/wp-json\/wp\/v2\/product_tag?post=1269"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}