{"id":2097,"date":"2026-04-20T02:42:15","date_gmt":"2026-04-20T02:42:15","guid":{"rendered":"https:\/\/worm-gear-motor.top\/product\/nmrv075-worm-gear-reducer\/"},"modified":"2026-04-20T02:42:15","modified_gmt":"2026-04-20T02:42:15","slug":"nmrv075-worm-gear-reducer","status":"publish","type":"product","link":"https:\/\/worm-gear-motor.top\/fa\/product\/nmrv075-worm-gear-reducer\/","title":{"rendered":"NMRV075 Worm Gear Reducer"},"content":{"rendered":"
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NMRV075 \u2014 Aluminum Alloy Worm Gearbox | 75mm Center Distance | Up to 300 Nm<\/h2>\n

Engineered for gate operators and access-control mechanisms, the NMRV075<\/strong> from Ever-power Australia Worm Reducer Co., Ltd.<\/strong> delivers dependable speed reduction with die-cast aluminum alloy housing with ribbed fins. Trusted by OEMs and system integrators across 60+ countries.<\/p>\n<\/div>\n

\"NMRV075<\/p>\n

📜 NMRV075 Product Overview<\/h2>\n

The NMRV075<\/strong> is a precision-built worm gear speed reducer designed for reliable right-angle power transmission in demanding industrial environments. Featuring die-cast aluminum alloy housing with ribbed fins, this unit transforms high-speed motor rotation into controlled, high-torque output suitable for gate operators and access-control mechanisms. The worm gear mechanism provides inherently smooth, low-vibration operation with significantly lower noise levels than spur or helical gear alternatives \u2014 typically below 65 dB(A) at rated load.<\/p>\n

All gear components are manufactured under ISO 9001-certified quality management. The worm wheel is machined from wear-resistant bronze alloy, while the worm shaft undergoes carburizing and precision grinding to achieve a hardened tooth surface. This material combination ensures gradual, predictable wear characteristics rather than sudden failure, giving maintenance teams confidence in planning scheduled interventions.<\/p>\n

✅ Key Features & Benefits<\/h2>\n
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Precision Gear Meshing<\/strong>
Ground worm shaft with Zi tooth profile ensures optimal contact geometry, reducing wear and maximizing transmission efficiency.<\/div>\n
Compact Right-Angle Layout<\/strong>
90\u00b0 shaft arrangement saves space in tight machine envelopes compared to inline reducers of equivalent torque capacity.<\/div>\n
Wide Ratio Range<\/strong>
A single gearbox covers a broad ratio spectrum, simplifying inventory management across multiple machine designs.<\/div>\n
Robust Bearing System<\/strong>
High-quality radial ball bearings support both shafts, providing excellent load capacity and minimizing axial play.<\/div>\n<\/div>\n

\"NMRV<\/p>\n

🔧 Technical Specifications<\/h2>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Parameter<\/th>\nValue<\/th>\n<\/tr>\n<\/thead>\n
Center Distance<\/td>\n75 mm<\/td>\n<\/tr>\n
Reduction Ratio<\/td>\n5, 7.5, 10, 15, 20, 25, 30, 40, 50, 60, 80, 100<\/td>\n<\/tr>\n
Max Output Torque<\/td>\n300 Nm<\/td>\n<\/tr>\n
Input Power Range<\/td>\nUp to 1.5 kW<\/td>\n<\/tr>\n
Output Speed Range<\/td>\n14\u2013280 r\/min<\/td>\n<\/tr>\n
Housing<\/td>\nDie-cast Aluminum Alloy<\/td>\n<\/tr>\n
Worm Wheel<\/td>\nCuSn12Ni2 Tin-Nickel Bronze<\/td>\n<\/tr>\n
Worm Shaft<\/td>\n20CrMnTi Steel, HRC 58-62, Zi Profile<\/td>\n<\/tr>\n
Motor Flanges<\/td>\n71B14, 80B14, 90B14<\/td>\n<\/tr>\n
Protection<\/td>\nIP55<\/td>\n<\/tr>\n
Mounting<\/td>\nB3, B5, B6, B7, B8, V5, V6<\/td>\n<\/tr>\n
Weight<\/td>\n~10 kg<\/td>\n<\/tr>\n
Noise<\/td>\n< 65 dB(A)<\/td>\n<\/tr>\n
Ambient Temp<\/td>\n-10\u00b0C to +40\u00b0C<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

\"NMRV075<\/p>\n

🏭 Application Industries<\/h2>\n
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🍯 Food & Beverage<\/strong>
Mixers, dosing pumps, and rotary valves in hygienic production environments.<\/div>\n
📦 Textile & Printing<\/strong>
Thread winding, fabric tensioning, and screen-printing carriage drives.<\/div>\n
🏚 Gate & Door Systems<\/strong>
Sliding gates, barrier arms, and rolling shutters for commercial access control.<\/div>\n<\/div>\n

\"CNC<\/p>\n

📚 Selection & Sizing Guide<\/h2>\n

Proper sizing prevents premature failure. Follow this simplified procedure to confirm the NMRV075 suits your application:<\/p>\n

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Step 1:<\/strong> Calculate required output speed: n\u2082 = Motor Speed \/ Ratio<\/p>\n

Step 2:<\/strong> Determine required output torque from your machine design.<\/p>\n

Step 3:<\/strong> Apply service factor (fs<\/sub>) based on duty cycle, load type, and daily running hours.<\/p>\n

Step 4:<\/strong> Verify M\u2082 \u00d7 fs<\/sub> \u2264 rated torque from the specification table above.<\/p>\n

Step 5:<\/strong> Calculate motor power: P\u2081 = (M\u2082 \u00d7 fs<\/sub> \u00d7 n\u2082) \/ (9550 \u00d7 \u03b7)<\/p>\n

💡 Need help? Our engineering team provides free sizing assistance<\/strong> \u2014 contact us<\/a> with your torque, speed, and application details.<\/p>\n<\/div>\n

🛠 Installation & Maintenance<\/h2>\n

☑ Mount on a flat, rigid surface with all foundation bolts properly torqued. ☑ Align motor and gearbox shafts within 0.5\u00b0 angular and 0.05 mm parallel tolerance. ☑ Fill lubricant to the oil-gauge center line before first operation. ☑ Remove the breather vent plug to allow air circulation. ☑ Perform the first oil change after 100 operating hours, then every 2,500 hours thereafter. ☑ Maximum allowable oil temperature is 95\u00b0C \u2014 if exceeded, check load, alignment, and oil condition.<\/p>\n

\"NMRV<\/p>\n

💧 Lubrication<\/h2>\n

Use synthetic PAG oil (ISO VG 460) for ambient temperatures 15\u201340\u00b0C, or ISO VG 320 for cooler environments. Recommended brands: Shell Tivela S, Mobil Glygoyle, or Esso Spartan EP series. Mineral oils are acceptable but result in higher operating temperatures and shorter change intervals. Fill to the sight-gauge center line.<\/p>\n

🚧 Troubleshooting<\/h2>\n
\n\n\n\n\n\n\n\n\n
Symptom<\/th>\nCause<\/th>\nAction<\/th>\n<\/tr>\n<\/thead>\n
🌡 Overheating<\/td>\nOverload \/ misalignment \/ low oil<\/td>\nReduce load; re-align; check oil level<\/td>\n<\/tr>\n
📳 Vibration<\/td>\nLoose bolts \/ worn bearings<\/td>\nRe-torque fasteners; replace bearings<\/td>\n<\/tr>\n
🔈 Noise<\/td>\nPoor mesh \/ insufficient oil<\/td>\nInspect gears; refill lubricant<\/td>\n<\/tr>\n
💧 Leakage<\/td>\nWorn seals \/ loose drain plug<\/td>\nReplace seals; tighten with sealant<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

❓ Frequently Asked Questions<\/h2>\n
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\nWhat materials are used in the gear set?<\/summary>\n
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The worm wheel is precision-machined from CuSn12Ni2 tin-nickel bronze for exceptional wear resistance. The worm shaft is 20CrMnTi carburized alloy steel, ground to HRC 58-62 with Zi tooth profile for optimum meshing efficiency.<\/p>\n<\/div>\n<\/details>\n

\nCan I mount this in any orientation?<\/summary>\n
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Yes. Multiple mounting positions are supported including horizontal foot-mount, flange-mount, and vertical configurations. Ensure the oil level and breather are appropriate for your chosen orientation.<\/p>\n<\/div>\n<\/details>\n

\nWhat is the typical service life?<\/summary>\n
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Under rated conditions with proper lubrication and maintenance, service life regularly exceeds 20,000 operating hours. Bronze worm wheels exhibit gradual, predictable wear patterns rather than sudden failure.<\/p>\n<\/div>\n<\/details>\n

\nHow does efficiency vary with ratio?<\/summary>\n
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Efficiency decreases as ratio increases. Low ratios (5-10:1) achieve 85-90%, medium ratios (20-30:1) achieve 68-82%, and high ratios (60-100:1) range from 44-60%. Select the lowest ratio that meets your speed requirement for best efficiency.<\/p>\n<\/div>\n<\/details>\n

\nCan I combine two units for higher ratios?<\/summary>\n
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Yes. Two units can be stacked in series for ratios up to 10,000:1. Alternatively, consider our double-reduction worm gearbox series<\/a> which integrates both stages in a single housing.<\/p>\n<\/div>\n<\/details>\n<\/div>\n

⭐ Customer Feedback<\/h2>\n
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⭐⭐⭐⭐⭐<\/p>\n

“Outstanding quality consistency across large batches. Our OEM customers have had zero warranty claims.”<\/p>\n

\u2014 Li Wei, Factory Director, Singapore 🇸🇬<\/p>\n<\/div>\n

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⭐⭐⭐⭐⭐<\/p>\n

“We run these on our bottling conveyors \u2014 over 18 months, zero failures. Excellent weight-to-torque ratio.”<\/p>\n

\u2014 James T., Plant Manager, Australia 🇦🇺<\/p>\n<\/div>\n<\/div>\n

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Ready to Specify This Reducer?<\/h2>\n

Our engineers help you confirm sizing, select the right ratio, and match motor flanges. Get a competitive quote within 24 hours.<\/p>\n

📩 Request a Quote<\/a>
\n📧 Email Us<\/a><\/p>\n

Ever-power Australia Worm Reducer Co., Ltd. • About Us<\/a><\/p>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

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The NMRV075<\/strong> (Aluminum Alloy Worm Gearbox | 75mm Center Distance | Up to 300 Nm) is a high-performance worm gear speed reducer manufactured by Ever-power Australia Worm Reducer Co., Ltd. Engineered for reliable right-angle power transmission with quiet operation, high torque density, and flexible mounting options. Compatible with IEC and NEMA motors. Request a quote<\/a>.<\/p>\n<\/div>","protected":false},"featured_media":2039,"comment_status":"closed","ping_status":"open","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[2341],"product_tag":[2344,2343,2345,2346,2342],"class_list":{"0":"post-2097","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-nmrv-series-worm-reducer","7":"product_tag-aluminum-speed-reducer","8":"product_tag-nmrv-worm-gearbox","9":"product_tag-right-angle-gearbox","10":"product_tag-worm-drive","11":"product_tag-worm-gear-reducer","13":"first","14":"instock","15":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/worm-gear-motor.top\/fa\/wp-json\/wp\/v2\/product\/2097","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/worm-gear-motor.top\/fa\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/worm-gear-motor.top\/fa\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/worm-gear-motor.top\/fa\/wp-json\/wp\/v2\/comments?post=2097"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/worm-gear-motor.top\/fa\/wp-json\/wp\/v2\/media\/2039"}],"wp:attachment":[{"href":"https:\/\/worm-gear-motor.top\/fa\/wp-json\/wp\/v2\/media?parent=2097"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/worm-gear-motor.top\/fa\/wp-json\/wp\/v2\/product_brand?post=2097"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/worm-gear-motor.top\/fa\/wp-json\/wp\/v2\/product_cat?post=2097"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/worm-gear-motor.top\/fa\/wp-json\/wp\/v2\/product_tag?post=2097"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}