{"id":1270,"date":"2026-06-29T08:46:13","date_gmt":"2026-06-29T08:46:13","guid":{"rendered":"https:\/\/nmrv050gearbox.top\/product\/nrv090-worm-reducer-aluminum-worm-speed-reducer\/"},"modified":"2026-06-29T08:46:13","modified_gmt":"2026-06-29T08:46:13","slug":"nrv090-worm-reducer-aluminum-worm-speed-reducer","status":"publish","type":"product","link":"https:\/\/nmrv050gearbox.top\/ur\/product\/nrv090-worm-reducer-aluminum-worm-speed-reducer\/","title":{"rendered":"NRV090 Worm Reducer \u2013 Aluminum Worm Speed Reducer"},"content":{"rendered":"<p><script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"EP-NRV090 Worm Reducer\",\"brand\":{\"@type\":\"Brand\",\"name\":\"EP\"},\"sku\":\"EP-NRV090\",\"description\":\"Heavy-duty shaft-mount aluminum worm reducer 13 kg, ratios 7.5-100:1, up to 750 Nm, 35 mm output shaft, no input shaft, IEC 112B\/NEMA 56C\/140TC\/180TC input, suited to mining conveyor and large pump station drives.\",\"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-NRV090 Worm Reducer &mdash; 750 Nm Heavy-Duty Shaft-Mount for Mining Conveyors &amp; Pump Stations<\/h2>\n<p style=\"font-size:clamp(14px,2vw,18px);line-height:1.8;word-break:break-word;\">The <strong>EP-NRV090 aluminum worm reducer<\/strong> enters the heavy-duty tier of the NRV shaft-mount series &mdash; delivering up to <strong>750&nbsp;Nm<\/strong> of sustained output torque from a housing weighing just <strong>13&nbsp;kg<\/strong>. At this torque level, the NRV090 covers major belt conveyor head drives, large pump station actuators, and heavy agitator vessel drives in Australian mining ancillary, water infrastructure, and large-scale agricultural processing facilities. All of this comes without the foot bracket, shaft coupling, and alignment procedure required by foot-mount equivalents &mdash; a critical advantage when the drive is mounted on an elevated conveyor gantry or a remote pump-station platform where installation time directly translates to maintenance cost.<\/p>\n<p style=\"font-size:clamp(14px,2vw,18px);line-height:1.8;word-break:break-word;\">The NRV090 shares the same <strong>35&nbsp;mm H8 output shaft<\/strong> as the NMRV090 foot-mount variant, meaning both can be specified interchangeably based on mounting preference without any change to the driven equipment. With <strong>6,800&nbsp;N radial load capacity<\/strong> &mdash; the highest in the compact NRV series for this torque class &mdash; the NRV090 supports direct heavy chain sprocket and large V-belt sheave mounting without an outboard bearing pedestal. IEC 112B and NEMA 56C\/140TC\/180TC input flanges cover the full range of motors used in Australian heavy industrial and mining support applications.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/nmrv050gearbox.top\/wp-content\/uploads\/2026\/06\/nrv-worm-gearbox-1.webp\" alt=\"EP-NRV090 worm reducer heavy-duty 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-NRV090 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-NRV090<\/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;\">13 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 750 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 6,800 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 112B \/ NEMA 56C, 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=200 mm, 20 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;\">70 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;\">200 mm<\/td>\n<td style=\"padding:8px;border:1px solid #ddd;\">7.87 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;\">20 mm<\/td>\n<td style=\"padding:8px;border:1px solid #ddd;\">0.787 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;\">6,800 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-NRV090 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;\">NRV090 vs. NMRV090 &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-NRV090 (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;\">750 Nm &#9989;<\/td>\n<td style=\"padding:9px;border:1px solid #ddd;text-align:center;\">750 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;\">Output Shaft Dia.<\/td>\n<td style=\"padding:9px;border:1px solid #ddd;text-align:center;\">35 mm H8 (identical) &#9989;<\/td>\n<td style=\"padding:9px;border:1px solid #ddd;text-align:center;\">35 mm H8<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:9px;border:1px solid #ddd;\">Radial Load<\/td>\n<td style=\"padding:9px;border:1px solid #ddd;text-align:center;\">6,800 N &#9989;<\/td>\n<td style=\"padding:9px;border:1px solid #ddd;text-align:center;\">Similar<\/td>\n<\/tr>\n<tr style=\"background:#f5f7fa;\">\n<td style=\"padding:9px;border:1px solid #ddd;\">Input Shaft<\/td>\n<td style=\"padding:9px;border:1px solid #ddd;text-align:center;\">None (motor flange direct) &#9989;<\/td>\n<td style=\"padding:9px;border:1px solid #ddd;text-align:center;\">Yes (requires coupling)<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:9px;border:1px solid #ddd;\">Elevated Platform Install<\/td>\n<td style=\"padding:9px;border:1px solid #ddd;text-align:center;\">No crane needed &#9989;<\/td>\n<td style=\"padding:9px;border:1px solid #ddd;text-align:center;\">Crane required for coupling<\/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; 750 Nm &mdash; Heavy Industrial Shaft-Mount<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,16px);margin:0;word-break:break-word;\">750&nbsp;Nm from a shaft-mount reducer at 13&nbsp;kg covers major belt conveyor head drives that previously required heavy foot-mount gearboxes with dedicated mounting frames. For elevated drive platforms in Australian mining and port facilities, the shaft-mount configuration reduces structural steel requirements and eliminates the crane needed for coupling installation.<\/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; 6,800 N Radial Load &mdash; Direct Heavy Chain Mount<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,16px);margin:0;word-break:break-word;\">The highest radial load rating in the compact NRV series for this torque class. Supports direct mounting of ANSI No. 120 and No. 140 roller chain sprockets and D-section V-belt sheaves common in major Australian agricultural processing and mining ancillary conveyor drives without an outboard bearing pedestal.<\/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 Shaft &mdash; Identical to NMRV090<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,16px);margin:0;word-break:break-word;\">The NRV090 and NMRV090 share the same 35&nbsp;mm output shaft diameter and keyway dimensions, allowing engineers to specify either shaft-mount or foot-mount configurations based on installation requirements without any change to the driven equipment design or bore machining.<\/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 Ready<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,16px);margin:0;word-break:break-word;\">Accepts NEMA 56C, 140TC, and 180TC input flanges alongside IEC 112B &mdash; covering the full range of 0.75&ndash;3.0&nbsp;kW motors used in Australian heavy industrial and mining support equipment 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; NSF H1 Food-Grade Lubricant Option<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,16px);margin:0;word-break:break-word;\">NSF H1 registered food-grade ISO VG 220 lubricant available as factory-fill for food processing and dairy applications. Allows the NRV090 to be specified for large industrial food mixer and dairy processing vessel agitator drives where incidental food contact is possible.<\/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;\">Mining Conveyor Drives<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,15px);color:#444;word-break:break-word;\">Head and tail drives for belt conveyors in Australian iron ore, coal, and bauxite mining ancillary operations &mdash; 750&nbsp;Nm shaft-mount handles major conveyor load without elevated-platform bracket fabrication. Unit changeout under two hours on gantry drives.<\/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;\">Large Pump Station Actuators<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,15px);color:#444;word-break:break-word;\">Major pump station gate actuator drives, large sluice gate operators, and penstock valve actuators in Australian water authority infrastructure &mdash; self-locking at 80:1 and 100:1 holds gate position on power loss 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 polymer blending vessel drives, and large fermentation tank agitator drives &mdash; 750&nbsp;Nm shaft-mount eliminates elevated-platform bracket fabrication and coupling alignment on tall vessel installations.<\/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;\">&#127981;<\/p>\n<p style=\"font-size:clamp(14px,2vw,17px);font-weight:bold;margin:6px 0;\">Large Food Processing Drives<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,15px);color:#444;word-break:break-word;\">Industrial-scale dough mixer main drives, large cheese vat agitators, and major food ingredient blending vessel drives &mdash; NSF H1 lubricant option and IP54 sealing cover food-grade processing requirements.<\/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; NRV090 Ratio Selection<\/h2>\n<ul style=\"font-size:clamp(14px,2vw,18px);line-height:2;\">\n<li><strong>Ratio 7.5&ndash;15:<\/strong> Higher-speed conveyor and process drives &mdash; 93&ndash;186 rpm, moderate torque.<\/li>\n<li><strong>Ratio 20&ndash;50:<\/strong> Standard heavy conveyor and agitator drives &mdash; 28&ndash;70 rpm, 400&ndash;650 Nm.<\/li>\n<li><strong>Ratio 60&ndash;100:<\/strong> Gate actuators and positioning drives &mdash; 14&ndash;23 rpm, self-locking, up to 750 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=200&nbsp;mm, 20&nbsp;mm pin. Input: IEC 112B, NEMA 56C, 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 NRV090 deliver?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The EP-NRV090 delivers up to 750 Nm at a 100:1 ratio. This crosses into genuine heavy-duty industrial territory, covering major belt conveyor head drives, large pump station actuators, and heavy agitator vessel drives in Australian mining ancillary, water infrastructure, and large-scale agricultural processing facilities.\"}},{\"@type\":\"Question\",\"name\":\"What is the difference between NRV090 and NMRV090?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The NMRV090 has a foot-mount base and an input shaft for motor coupling. The NRV090 has no input shaft and mounts directly onto the driven shaft using a hollow bore. NRV090 eliminates the coupling, mounting bracket, and alignment procedure. Both deliver up to 750 Nm and share the same 35 mm output shaft diameter.\"}},{\"@type\":\"Question\",\"name\":\"What is the radial load capacity of the NRV090 output shaft?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The NRV090 output shaft supports up to 6,800 N radial load at ratio 100:1. This is the highest radial load rating in the compact NRV series for this torque class and allows direct mounting of heavy chain sprockets and V-belt sheaves used in major conveyor and pump station drives.\"}},{\"@type\":\"Question\",\"name\":\"Does the NRV090 support V-belt pulley mounting on the output shaft?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. The 6,800 N radial load capacity supports direct V-belt pulley mounting for A, B, C, and D-section V-belt drives common in large pump-house and irrigation station drives across regional Australia where belt drives are preferred for their overload slip-protection characteristic.\"}},{\"@type\":\"Question\",\"name\":\"Can the NRV090 be used with food-grade lubricant?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. NSF H1 registered food-grade synthetic worm gear lubricant ISO VG 220 is available as a factory-fill option for the NRV090, required for food processing and dairy applications where incidental food contact is possible. Specify at order.\"}}]}<\/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 NRV090 deliver?<\/summary>\n<p style=\"padding:14px;font-size:clamp(13px,1.8vw,16px);margin:0;\">Up to <strong>750&nbsp;Nm<\/strong> at 100:1 ratio &mdash; crosses into heavy-duty industrial territory. Covers major belt conveyor head drives, large pump station actuators, and heavy agitator vessel drives in Australian mining, water infrastructure, and large-scale agricultural processing facilities.<\/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 NRV090 and NMRV090?<\/summary>\n<p style=\"padding:14px;font-size:clamp(13px,1.8vw,16px);margin:0;\">NRV090: shaft-mount, no input shaft, hollow bore on driven shaft, torque arm anti-rotation, no coupling needed. NMRV090: foot-mount, input shaft, requires jaw or elastic coupling. Both share the same 35&nbsp;mm output shaft and 750&nbsp;Nm output torque. Choose NRV090 for elevated or tight-clearance installations.<\/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 NRV090 output shaft?<\/summary>\n<p style=\"padding:14px;font-size:clamp(13px,1.8vw,16px);margin:0;\">Up to <strong>6,800&nbsp;N<\/strong> at 100:1 &mdash; highest in the compact NRV series for this torque class. Allows direct mounting of heavy chain sprockets and 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; Does the NRV090 support V-belt pulley mounting on the output shaft?<\/summary>\n<p style=\"padding:14px;font-size:clamp(13px,1.8vw,16px);margin:0;\">Yes &mdash; 6,800&nbsp;N radial load supports direct A, B, C, and D-section V-belt pulley mounting in pump-house and irrigation drives across regional Australia.<\/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; Can the NRV090 be used with food-grade lubricant?<\/summary>\n<p style=\"padding:14px;font-size:clamp(13px,1.8vw,16px);margin:0;\">Yes &mdash; NSF H1 food-grade ISO VG 220 synthetic lubricant available as factory-fill for food processing and dairy applications. Specify at order.<\/p>\n<\/details>\n<p><script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"Product\",\"name\":\"EP-NRV090 Worm Reducer\",\"aggregateRating\":{\"@type\":\"AggregateRating\",\"ratingValue\":\"4.9\",\"reviewCount\":\"3\"},\"review\":[{\"@type\":\"Review\",\"author\":{\"@type\":\"Person\",\"name\":\"Brett Sullivan\"},\"reviewRating\":{\"@type\":\"Rating\",\"ratingValue\":\"5\"},\"reviewBody\":\"Using NRV090 shaft-mount reducers on belt conveyor head drives at our iron ore handling facility near Whyalla. The shaft-mount configuration means we can change out a failed unit in under two hours on an elevated drive platform. Thirteen months continuous, no failures.\"},{\"@type\":\"Review\",\"author\":{\"@type\":\"Person\",\"name\":\"Petra Hofmann\"},\"reviewRating\":{\"@type\":\"Rating\",\"ratingValue\":\"5\"},\"reviewBody\":\"Installed NRV090 on large reactor vessel agitator drives in our chemical plant in Hamburg. 750 Nm handles our high-viscosity polymer blending in 24-hour continuous operation without any overheating. The shaft-mount saved significant fabrication cost on our elevated vessel platform.\"},{\"@type\":\"Review\",\"author\":{\"@type\":\"Person\",\"name\":\"Nguyen Van Thanh\"},\"reviewRating\":{\"@type\":\"Rating\",\"ratingValue\":\"4.5\"},\"reviewBody\":\"Used NRV090 on pump station gate actuator drives in our water treatment plant in Ho Chi Minh City. Self-locking at 80:1 holds gate position perfectly on power loss. The 35 mm shaft matched our actuator screw bore exactly.\"}]}<\/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 NRV090 shaft-mount reducers on belt conveyor head drives at our iron ore handling facility near Whyalla. Shaft-mount means we can change out a failed unit in under two hours on an elevated drive platform. Thirteen months continuous, no failures.&rdquo;<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,15px);font-weight:bold;margin:4px 0;\">Brett Sullivan &#127462;&#127482; &mdash; Maintenance Superintendent, Iron Ore Handling, 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 NRV090 on large reactor vessel agitator drives in our chemical plant in Hamburg. 750&nbsp;Nm handles our high-viscosity polymer blending in 24-hour continuous operation without overheating. Shaft-mount saved significant fabrication cost on our elevated vessel platform.&rdquo;<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,15px);font-weight:bold;margin:4px 0;\">Petra Hofmann &#127465;&#127466; &mdash; Process Engineer, Chemical Plant, Germany<\/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 NRV090 on pump station gate actuator drives in our water treatment plant in Ho Chi Minh City. Self-locking at 80:1 holds gate position perfectly on power loss. The 35&nbsp;mm shaft matched our actuator screw bore exactly.&rdquo;<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,15px);font-weight:bold;margin:4px 0;\">Nguyen Van Thanh &#127475;&#127483; &mdash; Project Engineer, Water Treatment, Vietnam<\/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 NRV090 heavy-duty worm reducer production\" 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 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;4.0&nbsp;kW motors in 112 frame &mdash; covers 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=200 mm)<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,15px);color:#444;word-break:break-word;\">20&nbsp;mm pin dia., M20 weld-on pin brackets. 200&nbsp;mm arm length minimises bracket weld stress while providing secure anti-rotation for 750&nbsp;Nm output torque in heavy industrial elevated-platform 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;\">NRV110 Upgrade<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,15px);color:#444;word-break:break-word;\">For applications requiring over 750&nbsp;Nm, the NRV110 provides up to ~1,200&nbsp;Nm with a 42&nbsp;mm shaft 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;\">NMRV090 Foot-Mount Variant<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,15px);color:#444;word-break:break-word;\">Four output flanges (FA&ndash;FD), three NEMA input options (56C, 140TC, 180TC), and NSF H1 food-grade lubricant option &mdash; same torque and ratio range as NRV090 for applications where foot-mount is preferred.<\/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-NRV090 for Your Heavy-Duty 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 mining, water infrastructure, and large-scale food processing 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 | Mining, process &amp; OEM 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-NRV090 Aluminum Worm Reducer<\/strong> delivers up to 750&nbsp;Nm at 13&nbsp;kg across ratios of 7.5&ndash;100:1. A heavy-duty shaft-mount worm speed reducer with no input shaft &mdash; IEC 112B or NEMA 56C\/140TC\/180TC motor direct-mount, hollow bore shaft installation, 6,800&nbsp;N radial load capacity, and K1=200&nbsp;mm torque arm. Built for mining conveyor head drives, large pump station actuators, heavy agitator vessel drives, and major food processing equipment in Australia and global heavy industrial 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":[2485,2482,2495,2486,2484,2468,2467,2471],"class_list":{"0":"post-1270","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-heavy-duty-worm-reducer","9":"product_tag-mining-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\/1270","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=1270"}],"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=1270"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/nmrv050gearbox.top\/ur\/wp-json\/wp\/v2\/product_brand?post=1270"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/nmrv050gearbox.top\/ur\/wp-json\/wp\/v2\/product_cat?post=1270"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/nmrv050gearbox.top\/ur\/wp-json\/wp\/v2\/product_tag?post=1270"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}