{"id":1272,"date":"2026-06-29T08:46:13","date_gmt":"2026-06-29T08:46:13","guid":{"rendered":"https:\/\/nmrv050gearbox.top\/product\/nrv130-worm-reducer-aluminum-worm-speed-reducer\/"},"modified":"2026-06-29T08:46:14","modified_gmt":"2026-06-29T08:46:14","slug":"nrv130-worm-reducer-aluminum-worm-speed-reducer","status":"publish","type":"product","link":"https:\/\/nmrv050gearbox.top\/id\/produk\/nrv130-worm-reducer-aluminum-worm-speed-reducer\/","title":{"rendered":"NRV130 Worm Reducer \u2013 Aluminum Worm Speed Reducer"},"content":{"rendered":"<p><script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"EP-NRV130 Worm Reducer\",\"brand\":{\"@type\":\"Brand\",\"name\":\"EP\"},\"sku\":\"EP-NRV130\",\"description\":\"Flagship shaft-mount aluminum worm reducer 48 kg, ratios 7.5-100:1, up to 1800 Nm, 45 mm output shaft, no input shaft, IEC 160B\/NEMA 180TC\/210TC input, for overland bulk conveyor and major process vessel drives. Centrifugally cast phosphor-bronze worm wheel.\",\"material\":\"Die-cast aluminum alloy, centrifugally cast 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-NRV130 Worm Reducer &mdash; Flagship 1,800 Nm Shaft-Mount for Overland Bulk Conveyors &amp; Major Process Vessels<\/h2>\n<p style=\"font-size:clamp(14px,2vw,18px);line-height:1.8;word-break:break-word;\">The <strong>EP-NRV130 aluminum worm reducer<\/strong> is the most powerful unit in Ever Power&rsquo;s compact NRV shaft-mount series &mdash; delivering up to <strong>1,800&nbsp;Nm<\/strong> of sustained output torque from a <strong>48&nbsp;kg<\/strong> housing. This torque level, combined with a class-leading <strong>10,500&nbsp;N radial load capacity<\/strong> and a <strong>centrifugally cast phosphor-bronze worm wheel<\/strong> for superior fatigue life, places the NRV130 at the intersection of compact shaft-mount convenience and genuine heavy industrial drive capability. For Australian bulk commodity export terminals running 24-hour overland conveyor operations, the shaft-mount configuration means a full drive unit replacement can be completed in a fraction of the time required for equivalent foot-mount gearbox systems.<\/p>\n<p style=\"font-size:clamp(14px,2vw,18px);line-height:1.8;word-break:break-word;\">The NRV130&rsquo;s <strong>45&nbsp;mm H8 output shaft<\/strong> matches the output shaft of the NMRV130 foot-mount variant exactly, allowing engineers to specify either configuration based on installation requirements without any modification to the driven equipment. The 22.5&nbsp;deg bolt pattern reference on the output flange interface &mdash; unique in the NRV and NMRV series &mdash; is shared between NRV130 and NMRV130, maintaining interchangeability. IEC 160B and NEMA 180TC\/210TC input flanges cover motors up to 7.5&nbsp;kW, making the NRV130 the highest-power compact shaft-mount worm reducer available for Australian mining, chemical, and large-scale water infrastructure applications.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/nmrv050gearbox.top\/wp-content\/uploads\/2026\/06\/nrv-worm-gearbox-1.webp\" alt=\"EP-NRV130 worm reducer flagship 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-NRV130 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-NRV130<\/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;\">48 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 1,800 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 10,500 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;\">45 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;\">1.750 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;\">14 &times; 48.5 mm<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:9px;border:1px solid #ddd;\">Worm Wheel Material<\/td>\n<td style=\"padding:9px;border:1px solid #ddd;\">Phosphor bronze (centrifugally cast)<\/td>\n<\/tr>\n<tr style=\"background:#f5f7fa;\">\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>\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 160B \/ NEMA 180TC, 210TC<\/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=280 mm, 28 mm pin dia. (22.5 deg ref)<\/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;\">45 mm H8<\/td>\n<td style=\"padding:8px;border:1px solid #ddd;\">1.750 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;\">14 &times; 48.5 mm<\/td>\n<td style=\"padding:8px;border:1px solid #ddd;\">0.375 &times; 2.75 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;\">80 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;\">280 mm (22.5 deg ref)<\/td>\n<td style=\"padding:8px;border:1px solid #ddd;\">11.02 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;\">28 mm<\/td>\n<td style=\"padding:8px;border:1px solid #ddd;\">1.102 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;\">10,500 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-NRV130 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;\">NRV130 vs. NMRV130 &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-NRV130 (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;\">1,800 Nm &#9989;<\/td>\n<td style=\"padding:9px;border:1px solid #ddd;text-align:center;\">1,800 Nm<\/td>\n<\/tr>\n<tr>\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;\">45 mm H8 (identical) &#9989;<\/td>\n<td style=\"padding:9px;border:1px solid #ddd;text-align:center;\">45 mm H8<\/td>\n<\/tr>\n<tr style=\"background:#f5f7fa;\">\n<td style=\"padding:9px;border:1px solid #ddd;\">Worm Wheel<\/td>\n<td style=\"padding:9px;border:1px solid #ddd;text-align:center;\">Centrifugally cast bronze &#9989;<\/td>\n<td style=\"padding:9px;border:1px solid #ddd;text-align:center;\">Centrifugally cast bronze<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:9px;border:1px solid #ddd;\">Bolt Pattern Reference<\/td>\n<td style=\"padding:9px;border:1px solid #ddd;text-align:center;\">22.5 deg (both) &#9989;<\/td>\n<td style=\"padding:9px;border:1px solid #ddd;text-align:center;\">22.5 deg (unique in series)<\/td>\n<\/tr>\n<tr style=\"background:#f5f7fa;\">\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>\n<td style=\"padding:9px;border:1px solid #ddd;\">Elevated Platform Replace<\/td>\n<td style=\"padding:9px;border:1px solid #ddd;text-align:center;\">3-hour crew change &#9989;<\/td>\n<td style=\"padding:9px;border:1px solid #ddd;text-align:center;\">Heavy crane + coupling align<\/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; 1,800 Nm &mdash; Flagship NRV Torque<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,16px);margin:0;word-break:break-word;\">The highest output torque in the compact NRV shaft-mount series. At 48&nbsp;kg, the NRV130 provides 1,800&nbsp;Nm of sustained torque that previously required floor-standing gearboxes weighing 100&ndash;130&nbsp;kg &mdash; a weight reduction that directly reduces structural steel cost and simplifies elevated-platform installation logistics at Australian mining and port terminals.<\/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; 10,500 N Radial Load &mdash; Series Maximum<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,16px);margin:0;word-break:break-word;\">The highest radial load rating in the entire compact NRV series. Supports direct mounting of ANSI No. 120 and No. 140 roller chain sprockets and heavy D-section V-belt sheaves used in overland bulk conveyor drives &mdash; eliminating intermediate bearing pedestals and reducing conveyor drive component count.<\/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; Centrifugally Cast Phosphor-Bronze Wheel<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,16px);margin:0;word-break:break-word;\">The NRV130 worm wheel is centrifugally cast rather than sand-cast, producing a denser, more homogeneous alloy structure with higher fatigue strength. This extends service life significantly under the sustained high-torque, low-speed conditions of major conveyor and agitator drives operating 24 hours per day.<\/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; 45 mm Shaft &mdash; Identical to NMRV130<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,16px);margin:0;word-break:break-word;\">The NRV130 45&nbsp;mm H8 output shaft matches the NMRV130 foot-mount variant exactly &mdash; including the 22.5&nbsp;deg torque arm bolt pattern reference unique to both 130-size models in the series. Driven equipment designed for one variant requires no modification to accept the other.<\/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; IEC 160B + NEMA 180TC\/210TC Input<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,16px);margin:0;word-break:break-word;\">Covers motors from 3.0&nbsp;kW (IEC 160B) up to 7.5&nbsp;kW (NEMA 210TC) &mdash; the largest motor class used in compact worm reducer applications in Australian bulk material handling and heavy process industry, including the 210TC frame size rarely accepted by compact shaft-mount reducers.<\/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;\">Overland Bulk Conveyors<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,15px);color:#444;word-break:break-word;\">Head and tail drives for overland iron ore, coal, and grain belt conveyors at Australian export terminals in Newcastle, Port Hedland, and Gladstone &mdash; 1,800&nbsp;Nm shaft-mount allows full drive unit replacement on elevated gantry with small crew and telehandler, versus heavy crane for foot-mount equivalents.<\/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;\">Major Process Vessel Drives<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,15px);color:#444;word-break:break-word;\">Large-diameter reactor vessel agitators, polymer compounding vessel drives, and large fertiliser blending vessel drives in chemical and petrochemical plants &mdash; centrifugally cast bronze wheel withstands cyclic loading of high-viscosity product blending in 24-hour continuous operation at full rated torque.<\/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 Water Infrastructure<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,15px);color:#444;word-break:break-word;\">Major clarifier rake drives, gravity belt thickener drives, and large sluice gate actuators in Australian water authority treatment plants and desalination facilities &mdash; self-locking at high ratios provides load-holding without a separate mechanical brake at remote-operated sites.<\/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;\">Heavy Food &amp; Grain Industry<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,15px);color:#444;word-break:break-word;\">Major grain elevator boot drives, industrial-scale dough mixer main drives, and large grain terminal transfer belt drives &mdash; 1,800&nbsp;Nm handles the high inertia starting loads of heavily loaded bulk grain handling systems in continuous 24-hour operation at major Australian grain export ports.<\/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; NRV130 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 overland conveyor drives &mdash; 93&ndash;186 rpm, moderate torque.<\/li>\n<li><strong>Ratio 20&ndash;40:<\/strong> Standard heavy bulk conveyor and agitator drives &mdash; 35&ndash;70 rpm, 1,000&ndash;1,600 Nm.<\/li>\n<li><strong>Ratio 50&ndash;100:<\/strong> Large gate actuators, clarifier rakes, slow positioning &mdash; 14&ndash;28 rpm, self-locking, up to 1,800 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>45&nbsp;mm H8 solid shaft<\/strong> with 14&times;48.5&nbsp;mm keyway and M16 threaded end. Inch: 1.750&nbsp;in. Hollow bore mounts directly onto driven shaft &mdash; specify driven shaft diameter at order. Torque arm K1=280&nbsp;mm, 28&nbsp;mm pin, <strong>22.5&nbsp;deg bolt pattern reference<\/strong> (unique to NRV130 and NMRV130 in the series). Critical when designing the torque arm anchor bracket. Input: IEC 160B, NEMA 180TC, or 210TC &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 NRV130 deliver?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The EP-NRV130 delivers up to 1,800 Nm at a 100:1 ratio. This is the highest output torque in the compact NRV shaft-mount series and covers the head drives of overland bulk material conveyors, major process vessel agitators, and large clarifier rake drives in Australian mining export terminals, chemical plants, and water infrastructure.\"}},{\"@type\":\"Question\",\"name\":\"What makes the NRV130 worm wheel different from other NRV models?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The NRV130 worm wheel is centrifugally cast phosphor bronze rather than the sand-cast phosphor bronze used in smaller NRV models. Centrifugal casting produces a denser, more homogeneous alloy structure with higher fatigue strength and longer service life under the sustained high-torque, low-speed conditions of major conveyor and agitator drives in continuous 24-hour operation.\"}},{\"@type\":\"Question\",\"name\":\"What is the FA flange bolt pattern angle for the NRV130?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The NRV130 uses a 22.5 degree bolt pattern reference for the output flange connection interface, matching the NMRV130 foot-mount variant. All other NRV and NMRV models use a 45 degree reference. This is a critical detail when designing the mating driven-machine flange or torque arm anchor bracket.\"}},{\"@type\":\"Question\",\"name\":\"What is the radial load capacity of the NRV130 output shaft?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The NRV130 output shaft supports up to 10,500 N radial load at ratio 100:1. This is the highest radial load rating in the compact NRV series and allows direct mounting of the largest industrial chain sprockets and heavy V-belt sheaves used in overland bulk conveyor systems without intermediate bearing pedestals.\"}},{\"@type\":\"Question\",\"name\":\"How does the NRV130 differ from the NRV110?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The NRV110 delivers up to 1,200 Nm at 35 kg with a 42 mm output shaft. The NRV130 steps up to 1,800 Nm at 48 kg with a 45 mm output shaft, centrifugally cast bronze wheel, and 10,500 N radial load capacity. Select NRV130 for applications requiring over 1,200 Nm sustained output or a 45 mm driven-shaft interface.\"}}]}<\/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 NRV130 deliver?<\/summary>\n<p style=\"padding:14px;font-size:clamp(13px,1.8vw,16px);margin:0;\">Up to <strong>1,800&nbsp;Nm<\/strong> at 100:1 ratio &mdash; the highest in the compact NRV shaft-mount series. Covers overland bulk conveyor head drives, major process vessel agitators, and large clarifier rake drives in Australian mining, chemical, and water infrastructure operations.<\/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 makes the NRV130 worm wheel different from other NRV models?<\/summary>\n<p style=\"padding:14px;font-size:clamp(13px,1.8vw,16px);margin:0;\">The NRV130 uses a <strong>centrifugally cast<\/strong> phosphor-bronze worm wheel, producing a denser, more homogeneous alloy than sand-cast wheels &mdash; delivering higher fatigue strength and longer service life under sustained high-torque, low-speed conditions of 24-hour continuous conveyor and agitator 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 bolt pattern reference for the NRV130 output flange?<\/summary>\n<p style=\"padding:14px;font-size:clamp(13px,1.8vw,16px);margin:0;\"><strong>22.5&nbsp;deg<\/strong> reference &mdash; unique in the NRV and NMRV series (all others use 45&nbsp;deg). Shared with the NMRV130 foot-mount variant. Critical when designing the torque arm anchor bracket or mating driven-machine flange.<\/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 NRV130 output shaft?<\/summary>\n<p style=\"padding:14px;font-size:clamp(13px,1.8vw,16px);margin:0;\">Up to <strong>10,500&nbsp;N<\/strong> at 100:1 &mdash; the highest in the compact NRV series. Supports the largest industrial chain sprockets and heavy V-belt sheaves in overland bulk conveyor drives without intermediate bearing pedestals.<\/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; How does the NRV130 differ from the NRV110?<\/summary>\n<p style=\"padding:14px;font-size:clamp(13px,1.8vw,16px);margin:0;\">NRV110: 1,200&nbsp;Nm, 35&nbsp;kg, 42&nbsp;mm shaft, 8,500&nbsp;N radial load. NRV130: 1,800&nbsp;Nm, 48&nbsp;kg, 45&nbsp;mm shaft, 10,500&nbsp;N radial load, centrifugally cast bronze wheel. Select NRV130 for over 1,200&nbsp;Nm or a 45&nbsp;mm driven-shaft interface.<\/p>\n<\/details>\n<p><script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"Product\",\"name\":\"EP-NRV130 Worm Reducer\",\"aggregateRating\":{\"@type\":\"AggregateRating\",\"ratingValue\":\"4.9\",\"reviewCount\":\"3\"},\"review\":[{\"@type\":\"Review\",\"author\":{\"@type\":\"Person\",\"name\":\"Cameron Reid\"},\"reviewRating\":{\"@type\":\"Rating\",\"ratingValue\":\"5\"},\"reviewBody\":\"We use NRV130 shaft-mount reducers on the head drives of our overland coal conveyors at our export terminal in Newcastle. The shaft-mount configuration means our maintenance crew can complete a full drive unit replacement in three hours on the elevated gantry without a heavy crane. Eighteen months continuous, zero failures.\"},{\"@type\":\"Review\",\"author\":{\"@type\":\"Person\",\"name\":\"Sven Lindqvist\"},\"reviewRating\":{\"@type\":\"Rating\",\"ratingValue\":\"5\"},\"reviewBody\":\"Installed NRV130 on large reactor vessel agitator drives in our polymer compounding plant in Gothenburg. The centrifugally cast bronze wheel has held up perfectly under 24-hour continuous high-viscosity blending for over a year at full rated torque.\"},{\"@type\":\"Review\",\"author\":{\"@type\":\"Person\",\"name\":\"Mohammed Al-Farsi\"},\"reviewRating\":{\"@type\":\"Rating\",\"ratingValue\":\"4.5\"},\"reviewBody\":\"Using NRV130 for large sluice gate actuator drives in our desalination plant in Muscat. Self-locking at 100:1 holds gate position on power loss without any additional locking mechanism. The 45 mm shaft matched our actuator screw bore exactly and the 10,500 N radial load rating gave us confidence to mount our chain drive directly.\"}]}<\/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;We use NRV130 shaft-mount reducers on the head drives of our overland coal conveyors at our export terminal in Newcastle. Shaft-mount means our maintenance crew can complete a full drive unit replacement in three hours on the elevated gantry without a heavy crane. Eighteen months continuous, zero failures.&rdquo;<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,15px);font-weight:bold;margin:4px 0;\">Cameron Reid &#127462;&#127482; &mdash; Conveyor Maintenance Manager, Coal Export 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 NRV130 on large reactor vessel agitator drives in our polymer compounding plant in Gothenburg. The centrifugally cast bronze wheel has held up perfectly under 24-hour continuous high-viscosity blending for over a year at full rated torque.&rdquo;<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,15px);font-weight:bold;margin:4px 0;\">Sven Lindqvist &#127480;&#127466; &mdash; Chief Engineer, Polymer Compounding Plant, Sweden<\/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;Using NRV130 for large sluice gate actuator drives in our desalination plant in Muscat. Self-locking at 100:1 holds gate position on power loss without any additional locking. The 45&nbsp;mm shaft matched our actuator screw bore exactly and the 10,500&nbsp;N radial load rating gave us confidence to mount chain drive directly.&rdquo;<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,15px);font-weight:bold;margin:4px 0;\">Mohammed Al-Farsi &#127476;&#127474; &mdash; Project Manager, Desalination Plant, Oman<\/p>\n<\/div>\n<\/div>\n<p><img decoding=\"async\" src=\"https:\/\/nmrv050gearbox.top\/wp-content\/uploads\/2026\/06\/worm-gearbox-factory-1.webp\" alt=\"Ever Power NRV130 flagship 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 160B Motor Adaptors<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,15px);color:#444;word-break:break-word;\">Direct motor mounting for 3.0&ndash;7.5&nbsp;kW motors in 160 frame &mdash; covers the largest motor sizes used in compact worm reducer applications in Australian bulk material handling and heavy process industry.<\/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=280 mm)<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,15px);color:#444;word-break:break-word;\">28&nbsp;mm pin dia., 22.5&nbsp;deg bolt pattern (unique to NRV130). Heavy-duty steel torque arm rated for sustained 1,800&nbsp;Nm reaction on elevated mining conveyor gantry and industrial vessel platforms.<\/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;\">External Oil Cooling Coil<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,15px);color:#444;word-break:break-word;\">Recommended for 24-hour heavy-duty operation in ambient above 30&nbsp;deg C &mdash; maintains oil below 90&nbsp;deg C limit for round-the-clock overland conveyor and major process plant agitator 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;\">&#9881;<\/p>\n<p style=\"font-size:clamp(14px,2vw,17px);font-weight:bold;margin:6px 0;\">NMRV130 Foot-Mount Variant<\/p>\n<p style=\"font-size:clamp(13px,1.8vw,15px);color:#444;word-break:break-word;\">FA flange (180&nbsp;mm pilot, 22.5&nbsp;deg ref), NEMA 140TC\/180TC\/210TC input, centrifugally cast bronze wheel &mdash; identical 45&nbsp;mm shaft and 1,800&nbsp;Nm output as NRV130 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-NRV130 &mdash; Australia&#8217;s Most Powerful Compact Shaft-Mount Worm Reducer<\/h2>\n<p style=\"color:#d0e0ff;font-size:clamp(14px,2vw,18px);margin:0 0 20px;\">Competitive volume pricing, full technical application engineering, and OEM partnership arrangements for the EP-NRV130 and th<\/p>\n","protected":false},"excerpt":{"rendered":"<p style=\"font-size:clamp(14px,2vw + 10px,18px);word-break:break-word;\">The <strong>EP-NRV130 Aluminum Worm Reducer<\/strong> is the flagship of the NRV series &mdash; delivering up to 1,800&nbsp;Nm at 48&nbsp;kg across ratios of 7.5&ndash;100:1. A shaft-mount worm speed reducer with no input shaft, centrifugally cast phosphor-bronze worm wheel, IEC 160B or NEMA 180TC\/210TC direct-mount, 45&nbsp;mm output shaft, 10,500&nbsp;N radial load capacity, and K1=280&nbsp;mm torque arm (22.5&nbsp;deg bolt reference). Built for overland bulk conveyor drives, major process vessels, large water infrastructure, and heavy grain terminal equipment worldwide.<\/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":[2499,2498,2481,2486,2484,2468,2467,2471],"class_list":{"0":"post-1272","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-nrv-worm-reducer","7":"product_tag-bulk-conveyor-worm-reducer","8":"product_tag-flagship-worm-reducer","9":"product_tag-high-torque-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\/id\/wp-json\/wp\/v2\/product\/1272","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nmrv050gearbox.top\/id\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/nmrv050gearbox.top\/id\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/nmrv050gearbox.top\/id\/wp-json\/wp\/v2\/comments?post=1272"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nmrv050gearbox.top\/id\/wp-json\/wp\/v2\/media\/1178"}],"wp:attachment":[{"href":"https:\/\/nmrv050gearbox.top\/id\/wp-json\/wp\/v2\/media?parent=1272"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/nmrv050gearbox.top\/id\/wp-json\/wp\/v2\/product_brand?post=1272"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/nmrv050gearbox.top\/id\/wp-json\/wp\/v2\/product_cat?post=1272"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/nmrv050gearbox.top\/id\/wp-json\/wp\/v2\/product_tag?post=1272"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}