{"id":2122,"date":"2026-04-20T02:45:44","date_gmt":"2026-04-20T02:45:44","guid":{"rendered":"https:\/\/worm-gear-motor.top\/product\/nrv-e050-worm-reducer-with-shaft-input-extended-output\/"},"modified":"2026-04-20T02:45:44","modified_gmt":"2026-04-20T02:45:44","slug":"nrv-e050-worm-reducer-with-shaft-input-extended-output","status":"publish","type":"product","link":"https:\/\/worm-gear-motor.top\/th\/product\/nrv-e050-worm-reducer-with-shaft-input-extended-output\/","title":{"rendered":"NRV-E050 Worm Reducer with Shaft Input & Extended Output"},"content":{"rendered":"
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NRV-E050 \u2014 Shaft Input + Extended Worm Shaft | 50mm | Versatile Power Transmission<\/h2>\n

Engineered for automated production lines and conveyor-driven logistics, the NRV-E050<\/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

\"NRV-E050<\/p>\n

📜 NRV-E050 Product Overview<\/h2>\n

The NRV-E050<\/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 automated production lines and conveyor-driven logistics. 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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High Torque Density<\/strong>
Delivers exceptional output torque relative to its compact size, reducing overall machine footprint and structural loading.<\/div>\n
Quiet & Smooth Operation<\/strong>
Worm gear meshing produces significantly lower noise than spur or helical alternatives \u2014 ideal for noise-sensitive environments.<\/div>\n
Flexible Mounting<\/strong>
Multiple standard mounting positions allow installation in any orientation without adapter kits or custom brackets.<\/div>\n
Long Service Life<\/strong>
Premium bronze worm wheel and hardened steel worm shaft deliver consistent performance exceeding 20,000 operating hours.<\/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>\n50 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>\n127 Nm<\/td>\n<\/tr>\n
Input Power Range<\/td>\nUp to 0.55 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>\n63B14, 71B14, 80B14<\/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~4.0 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

\"NRV-E050<\/p>\n

🏭 Application Industries<\/h2>\n
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⚙ General Machinery<\/strong>
Pumps, fans, agitators, and small machine tools across multiple industries.<\/div>\n
🏭 Building Materials<\/strong>
Stone cutting, brick molding, and concrete mixing equipment for construction sites.<\/div>\n
🔌 Renewable Energy<\/strong>
Solar tracker drives, wind turbine yaw mechanisms, and biomass feed systems.<\/div>\n<\/div>\n

\"Automated<\/p>\n

📚 Selection & Sizing Guide<\/h2>\n

Proper sizing prevents premature failure. Follow this simplified procedure to confirm the NRV-E050 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 reduction ratios are available?<\/summary>\n
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This model offers a comprehensive range of standard ratios. Lower ratios use multi-start worms for higher efficiency, while higher ratios employ single-start worms enabling self-locking. Custom ratios can be produced for OEM projects upon request.<\/p>\n<\/div>\n<\/details>\n

\nCan it work with both IEC and NEMA motors?<\/summary>\n
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Yes. The input flange accommodates IEC metric motor frames as well as NEMA imperial frames, providing global motor-sourcing flexibility without adapter plates.<\/p>\n<\/div>\n<\/details>\n

\nIs this gearbox self-locking?<\/summary>\n
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Self-locking depends on the ratio. Higher ratios provide reliable static self-locking. For safety-critical lifting, we recommend adding an external brake regardless of ratio.<\/p>\n<\/div>\n<\/details>\n

\nWhat lubricant is recommended?<\/summary>\n
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Synthetic PAG oil ISO VG 460 for ambient 15-40\u00b0C, or ISO VG 320 for cooler environments. Mineral oils are acceptable but run hotter. Fill to the sight-gauge center line; first change at 100 hours, then every 2,500 hours.<\/p>\n<\/div>\n<\/details>\n

\nWhat customization options are available?<\/summary>\n
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Ever-power offers custom shaft diameters, non-standard keyways, custom paint colors, double output shafts, food-grade lubrication, high-temp seals, and private-label branding for OEM partners.<\/p>\n<\/div>\n<\/details>\n<\/div>\n

⭐ Customer Feedback<\/h2>\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

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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<\/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 NRV-E050<\/strong> (Shaft Input + Extended Worm Shaft | 50mm | Versatile Power Transmission) 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":2038,"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":[2360,2357,2358,2361,2359],"class_list":{"0":"post-2122","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-nmrv-series-worm-reducer","7":"product_tag-industrial-gearbox","8":"product_tag-nrv-e-worm-gearbox","9":"product_tag-shaft-input-extended-output","10":"product_tag-worm-gear-drive","11":"product_tag-worm-reduction-unit","13":"first","14":"instock","15":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/worm-gear-motor.top\/th\/wp-json\/wp\/v2\/product\/2122","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/worm-gear-motor.top\/th\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/worm-gear-motor.top\/th\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/worm-gear-motor.top\/th\/wp-json\/wp\/v2\/comments?post=2122"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/worm-gear-motor.top\/th\/wp-json\/wp\/v2\/media\/2038"}],"wp:attachment":[{"href":"https:\/\/worm-gear-motor.top\/th\/wp-json\/wp\/v2\/media?parent=2122"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/worm-gear-motor.top\/th\/wp-json\/wp\/v2\/product_brand?post=2122"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/worm-gear-motor.top\/th\/wp-json\/wp\/v2\/product_cat?post=2122"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/worm-gear-motor.top\/th\/wp-json\/wp\/v2\/product_tag?post=2122"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}