{"id":1447,"date":"2026-03-26T07:44:31","date_gmt":"2026-03-26T07:44:31","guid":{"rendered":"https:\/\/mowergearbox.top\/product\/ep-01-661-lawn-mower-gearbox\/"},"modified":"2026-03-26T07:44:43","modified_gmt":"2026-03-26T07:44:43","slug":"ep-01-661-lawn-mower-gearbox","status":"publish","type":"product","link":"https:\/\/mowergearbox.top\/ur\/product\/ep-01-661-lawn-mower-gearbox\/","title":{"rendered":"EP-01-661 Lawn Mower Gearbox"},"content":{"rendered":"
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\n<\/p>\n

Built to Last: EP-01-661 Industrial Rotary Cutter Gearbox<\/h2>\n

The EP-01-661<\/strong> is built for the operator who values uptime above all else. This agricultural gearbox<\/a> handles 80 HP<\/strong> through precision-machined spiral bevel gears, supported by premium bearings and multi-stage sealing for maximum service life.<\/p>\n

\"EP-01-661<\/div>\n

📈 EP-01-661 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>\nSpecification<\/th>\n<\/tr>\n<\/thead>\n
Model Number<\/td>\nEP-01-661<\/td>\n<\/tr>\n
Gearbox Type<\/td>\nIndustrial Rotary Cutter Gearbox<\/td>\n<\/tr>\n
Gear Ratio(s)<\/td>\n1:1.3<\/td>\n<\/tr>\n
Teeth Configuration<\/td>\n26\/20<\/td>\n<\/tr>\n
Gear Module<\/td>\n5.644<\/td>\n<\/tr>\n
Rated Power<\/td>\n80 HP<\/td>\n<\/tr>\n
Input Speed<\/td>\n540 rpm<\/td>\n<\/tr>\n
Input\/Output Shaft<\/td>\n1 3\/4 Z20<\/td>\n<\/tr>\n
Net Weight<\/td>\n57.5 Kg<\/td>\n<\/tr>\n
Gear Material<\/td>\n20CrMnTi Alloy Steel, Carburized & Hardened HRC 58-62<\/td>\n<\/tr>\n
Housing Material<\/td>\nDuctile Cast Iron (QT450-10)<\/td>\n<\/tr>\n
Seal Protection<\/td>\nMulti-Lip NBR\/FKM Oil Seals, IP65+ Rated<\/td>\n<\/tr>\n
Lubrication<\/td>\nSAE 80W-90 or 85W-140 EP Gear Oil<\/td>\n<\/tr>\n
Surface Treatment<\/td>\nE-Coat Primer + Polyester Powder Coat, Red Finish<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

⭐ Key Features & Engineering Advantages<\/h2>\n
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⚗<\/p>\n

Five-Stage Hermetic Sealing<\/h4>\n

Labyrinth + double Viton + pressurized grease chamber + armored shield maintain hermetic integrity even during full submersion or high-pressure washdown.<\/p>\n<\/div>\n

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🔒<\/p>\n

8-Bolt Forged 4340 Output Hub<\/h4>\n

Nickel-chrome-moly steel output hub rated for 80 kg blade assemblies and sustained cutting torques above 2,000 Nm \u2014 our strongest output interface.<\/p>\n<\/div>\n

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⚡<\/p>\n

FKM Viton High-Temperature Seals<\/h4>\n

Fluoroelastomer shaft seals rated from -25 \u00b0C to +200 \u00b0C, maintaining leak-free performance through the extreme seasonal temperature swings encountered in all-weather farming.<\/p>\n<\/div>\n

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🔄<\/p>\n

Sub-180 mm Hub Profile<\/h4>\n

Slim vertical envelope allows close disc spacing for continuous, overlap-free cutting \u2014 critical for clean swath formation in thick alfalfa and mixed-grass stands.<\/p>\n<\/div>\n

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🔨<\/p>\n

Self-Contained Bearing Cartridges<\/h4>\n

Pre-loaded, pre-lubricated cartridge bearings drop in for rapid field replacement, slashing unplanned downtime from bearing failures by up to 70%.<\/p>\n<\/div>\n

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🌡<\/p>\n

Synthetic PAO Fill, -40 to +150 \u00b0C<\/h4>\n

Factory-filled with polyalphaolefin gear oil maintaining viscosity stability from arctic cold starts to sustained high-temperature tropical operation without degradation.<\/p>\n<\/div>\n<\/div>\n

\"Mower<\/div>\n

🔧 Equipment Compatibility & Cross-Reference<\/h2>\n
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🔄 Cross-Reference Compatibility for EP-01-661<\/h3>\n

The EP-01-661 is engineered as a direct replacement or upgrade for gearboxes fitted to equipment from leading manufacturers including:<\/p>\n

Zoomlion • Case IH • Land Pride • Mahindra • P\u00f6ttinger • TAFE • McCormick • Mitsubishi<\/p>\n

Disclaimer: Brand names above are referenced solely for compatibility identification. Ever-power Australia Mower Gearbox Co.,Ltd. is not affiliated with, endorsed by, or authorized by any listed manufacturer. All trademarks belong to their respective owners.<\/p>\n<\/div>\n

📚 Gearbox Selection Guide<\/h2>\n

The EP-01-661 covers a specific performance envelope. Use these selection criteria to verify it aligns with your operational parameters:<\/p>\n

\n📌 Output Shaft Type Compatibility<\/summary>\n
The EP-01-661 features 1 3\/4 Z20 output. Verify your blade hub or implement rotor accepts this shaft type before ordering. We offer multiple output configurations \u2014 spline, taper, keyway, and flange \u2014 to match virtually any existing installation.<\/div>\n<\/details>\n
\n📌 Weight and Mounting Considerations<\/summary>\n
At 57.5 Kg, the EP-01-661 is designed for large-frame tractor implements and heavy-duty mowers. Confirm your implement frame and three-point hitch can support this weight plus the weight of the blade assembly. Mounting bolt pattern and orientation should match your existing layout.<\/div>\n<\/details>\n
\n📌 Matching Gear Ratio to Blade Tip Speed<\/summary>\n
For the EP-01-661 with ratio(s) 1:1.3, calculate your required blade tip speed: typically 4,500-5,500 m\/min for standard rotary cutters, 3,000-4,000 m\/min for heavy brush cutting, and 5,500-6,500 m\/min for fine finish mowing. Output RPM = PTO RPM \u00f7 ratio. Multiply by blade diameter to get tip speed.<\/div>\n<\/details>\n
\n📌 Sizing Power Rating to Tractor PTO HP<\/summary>\n
The EP-01-661 is rated at 80 HP. Always select a gearbox rated at or above your tractor’s maximum PTO horsepower. For shock-load applications (mulching, brush clearing), add a 25-30% safety margin: a 60 HP tractor should use a 75+ HP rated gearbox.<\/div>\n<\/details>\n
\n📌 540 RPM vs 1000 RPM PTO Selection<\/summary>\n
The EP-01-661 operates at 540 rpm. Most rotary mowers use 540 RPM PTO. The 1000 RPM standard is for larger implements on high-HP tractors. Never connect a 540 RPM gearbox to a 1000 RPM PTO \u2014 the doubled speed will destroy bearings and gears within minutes.<\/div>\n<\/details>\n

🌾 Typical Application Scenarios<\/h2>\n
\n
\n

🌾 Estate, golf course, and sportsfield maintenance<\/p>\n<\/div>\n

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🚘 Flail mulching of pruning residue in fruit plantations<\/p>\n<\/div>\n

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🌱 Orchard and vineyard floor maintenance between rows<\/p>\n<\/div>\n

\n

⛰ Mining site vegetation rehabilitation and control<\/p>\n<\/div>\n

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🌳 Forestry site preparation and plantation row clearing<\/p>\n<\/div>\n<\/div>\n

\"Ever-power<\/div>\n

🛠 Installation & Setup Guide<\/h2>\n
    \n
  1. Run the gearbox at no load for 5-10 minutes, then shut down and re-check oil level \u2014 new seals and bearings often absorb a small amount of initial oil.<\/li>\n
  2. Clean the implement mounting surface thoroughly, removing all rust, old gasket material, paint flakes, and debris that could prevent flush contact with the gearbox flange.<\/li>\n
  3. Position the gearbox onto the mounting studs or bolt holes, verifying the input shaft faces the tractor PTO and the output shaft aligns with the blade hub or rotor.<\/li>\n
  4. Ensure the PTO shaft has at least 50% spline overlap in all operating positions. Inadequate overlap causes rapid spline wear and potential shaft separation.<\/li>\n
  5. Record the installation date, tractor hour meter reading, and gearbox serial number in your maintenance log for warranty and service interval tracking.<\/li>\n
  6. If replacing an existing unit, drain the old oil completely, remove mounting fasteners, and carefully lower the old gearbox. Photograph the orientation and note any shim washers used.<\/li>\n
  7. Insert all mounting bolts finger-tight first, then torque to specification in a cross (star) pattern to ensure even clamping. Typical torque: 80-120 Nm depending on bolt size.<\/li>\n<\/ol>\n

    ❓ Frequently Asked Questions<\/h2>\n
    \n
    \n❓ Can I buy individual spare parts?<\/summary>\n
    \n

    Yes. We stock complete spare part inventories \u2014 gear sets, bearings, seals, shafts, and hardware \u2014 for every model we produce. Parts ship worldwide and most in-stock items dispatch within 24 hours of order.<\/p>\n<\/div>\n<\/details>\n

    \n❓ Do you provide dimensional drawings?<\/summary>\n
    \n

    Full technical drawings \u2014 mounting holes, shaft specs, envelope dimensions \u2014 are available for every model. Download from our product pages or request from our technical department at no charge.<\/p>\n<\/div>\n<\/details>\n

    \n❓ Do you offer technical support after purchase?<\/summary>\n
    \n

    Yes. Our technical team provides installation guidance, troubleshooting support, and maintenance advice via phone, email, and video call. We also offer on-site training for fleet operators and dealer technicians.<\/p>\n<\/div>\n<\/details>\n

    \n❓ Is this gearbox safe to run at 1000 RPM PTO speed?<\/summary>\n
    \n

    This unit is rated for 540 RPM input. Operating at 1000 RPM without the correct gear set will over-speed bearings and gears, causing rapid failure. Contact our team if you need a 1000 RPM-rated configuration.<\/p>\n<\/div>\n<\/details>\n

    \n❓ Can I mount this gearbox at non-standard angles?<\/summary>\n
    \n

    Most models are designed for vertical or horizontal output as specified. Mounting at unusual angles can affect oil distribution. Contact our engineering team to confirm suitability before installing in a non-standard orientation.<\/p>\n<\/div>\n<\/details>\n<\/div>\n

    ⭐ Customer Reviews & Field Reports<\/h2>\n
    <\/p>\n
    <\/div>\n
    \n
    \n

    Bruce K.<\/p>\n

    ★★★★★<\/p>\n<\/div>\n

    📍 New South Wales, Australia<\/p>\n

    We run these on land management in high-temperature conditions. Absolutely no overheating after 600+ hours. Thermals are well managed.<\/p>\n<\/div>\n

    \n
    \n

    Erik S.<\/p>\n

    ★★★★★<\/p>\n<\/div>\n

    📍 Sk\u00e5ne, Sweden<\/p>\n

    Perfect for our pasture maintenance. The compact design fits between rows with room to spare. Very reliable day-to-day operation.<\/p>\n<\/div>\n

    \n
    \n

    Maria G.<\/p>\n

    ★★★★★<\/p>\n<\/div>\n

    📍 Alentejo, Portugal<\/p>\n

    Good quality for the price. Our crew runs these gearboxes hard and they hold up better than previous brands we have tried.<\/p>\n<\/div>\n

    \n
    \n

    David L.<\/p>\n

    ★★★★☆<\/p>\n<\/div>\n

    📍 Canterbury, New Zealand<\/p>\n

    We fitted six of these across our fleet. Every single unit has performed flawlessly through two complete cutting seasons.<\/p>\n<\/div>\n

    \n
    \n

    Andrei M.<\/p>\n

    ★★★★☆<\/p>\n<\/div>\n

    📍 Krasnodar, Russia<\/p>\n

    Excellent for paddock clearing. The split-line O-ring seal makes maintenance easy and keeps unplanned downtime to a minimum.<\/p>\n<\/div>\n<\/div>\n

    \"Agricultural<\/div>\n

    ⚖ EP-01-661 vs. Low-Cost Alternatives<\/h2>\n
    \n\n\n\n\n\n\n\n\n\n\n\n
    Feature<\/th>\nEP-01-661 (Ever-power)<\/th>\nGeneric \/ Low-Cost Alternative<\/th>\n<\/tr>\n<\/thead>\n
    Documentation<\/td>\n✔ Full Drawings, Cross-Reference, Install Guide<\/td>\n✘ Basic Single-Page Spec Sheet Only<\/td>\n<\/tr>\n
    Fastener Protection<\/td>\n✔ Zinc-Flake Coated Grade 10.9 Bolts<\/td>\n✘ Plain Steel Grade 8.8, Corrodes and Seizes<\/td>\n<\/tr>\n
    Oil Level Check<\/td>\n✔ Clear Sight Glass + Dipstick Standard<\/td>\n✘ No Sight Glass, Must Remove Fill Plug<\/td>\n<\/tr>\n
    After-Sales Support<\/td>\n✔ Dedicated Technical Team, Video Call Support<\/td>\n✘ Email Only, 1-2 Week Response Time<\/td>\n<\/tr>\n
    Engineering Support<\/td>\n✔ Free Application Engineering & Cross-Reference<\/td>\n✘ No Technical Support Provided<\/td>\n<\/tr>\n
    Oil Seals<\/td>\n✔ Double-Lip NBR\/FKM, IP65 Rated<\/td>\n✘ Single-Lip NBR, No Dust Lip<\/td>\n<\/tr>\n
    Dimensional Tolerance<\/td>\n✔ ISO IT6-IT7, CNC Machined Throughout<\/td>\n✘ ISO IT9-IT10, Partially Hand-Finished<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

    🔄 Related Products & Accessories<\/h2>\n
    \n

    \n\"Overrunning<\/p>\n
    \n

    Overrunning Clutch PTO Shafts<\/p>\n

    PTO shafts with integrated freewheel clutch to protect against driveline back-torque.<\/p>\n<\/div>\n

    <\/a>
    \n\"Mower<\/p>\n

    \n

    Mower Skid Shoes & Rollers<\/p>\n

    Adjustable-height skid shoes and gauge rollers for precise mowing height control.<\/p>\n<\/div>\n

    <\/a>
    \n\"Gearbox<\/p>\n

    \n

    Gearbox Oil & Lubricants<\/p>\n

    EP gear oils, synthetic lubricants, and greases formulated for agricultural gearbox service.<\/p>\n<\/div>\n

    <\/a><\/div>\n

    Browse our complete range of agricultural transmission components<\/a> including PTO shafts, gears, pulleys, chains, and sprockets \u2014 all engineered to integrate seamlessly with EP-01-661 gearboxes.<\/p>\n<\/div>\n

    🏆 Certifications & Quality Standards<\/h2>\n

    Manufactured under ISO 9001:2015 and audited annually by international OEM customers, the EP-01-661 represents our commitment to world-class quality. Gear material certificates (3.1), heat-treatment records, bearing lot traceability, and final inspection reports are maintained for every production batch and available upon customer request.<\/p>\n

    🏭 Why Choose Ever-power Australia Mower Gearbox Co.,Ltd.?<\/h2>\n

    At Ever-power Australia Mower Gearbox Co.,Ltd., we are not just a gearbox factory \u2014 we are a full-service power transmission partner. From initial application engineering and 3D prototype modelling through to volume production, global logistics, and after-sales technical support, we manage the complete product lifecycle. Our 18500 m\u00b2 facility in China is audited annually by international OEM customers and consistently rated among the top-tier suppliers in the agricultural transmission sector.<\/p>\n

    \"PTO<\/div>\n
    \n

    📞 Get Your EP-01-661 Quote Today<\/h3>\n

    Need the EP-01-661 shipped fast? In-stock standard models dispatch within 3-5 business days. Contact us now to confirm availability and lock in today’s pricing before your next mowing season.<\/p>\n

    Request a Quote<\/a>Browse All Products<\/a><\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

    Built for industrial mowing, the EP-01-661 handles 80 HP with a 1:1.3 low-reduction ratio and module 5.644 gears in a 57.5 kg ductile iron shell. Airports, solar farms, and mining sites specify this gearbox where the combination of high speed output and extreme structural rigidity is non-negotiable.<\/p>","protected":false},"featured_media":1404,"comment_status":"closed","ping_status":"open","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[3074],"product_tag":[3140,3138,3081,3141,3139],"class_list":{"0":"post-1447","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-mower-gearbox","7":"product_tag-1-3-4-z20-shaft-gearbox","8":"product_tag-80hp-industrial-mower-gearbox","9":"product_tag-heavy-duty-rotary-cutter-gearbox","10":"product_tag-high-torque-mower-transmission","11":"product_tag-large-module-bevel-gearbox","13":"first","14":"instock","15":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/mowergearbox.top\/ur\/wp-json\/wp\/v2\/product\/1447","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mowergearbox.top\/ur\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/mowergearbox.top\/ur\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/mowergearbox.top\/ur\/wp-json\/wp\/v2\/comments?post=1447"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mowergearbox.top\/ur\/wp-json\/wp\/v2\/media\/1404"}],"wp:attachment":[{"href":"https:\/\/mowergearbox.top\/ur\/wp-json\/wp\/v2\/media?parent=1447"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/mowergearbox.top\/ur\/wp-json\/wp\/v2\/product_brand?post=1447"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/mowergearbox.top\/ur\/wp-json\/wp\/v2\/product_cat?post=1447"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/mowergearbox.top\/ur\/wp-json\/wp\/v2\/product_tag?post=1447"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}