{"id":1438,"date":"2026-03-26T07:43:06","date_gmt":"2026-03-26T07:43:06","guid":{"rendered":"https:\/\/mowergearbox.top\/product\/ep-rc81-lawn-mower-gearbox\/"},"modified":"2026-03-26T07:43:17","modified_gmt":"2026-03-26T07:43:17","slug":"ep-rc81-lawn-mower-gearbox","status":"publish","type":"product","link":"https:\/\/mowergearbox.top\/es\/product\/ep-rc81-lawn-mower-gearbox\/","title":{"rendered":"EP-RC81 Lawn Mower Gearbox"},"content":{"rendered":"
\n
\n<\/p>\n

EP-RC81 \u2014 The Operator’s Choice in Heavy-Duty Rotary Cutter Gearbox Technology<\/h2>\n

Trusted by professional farmers and contractors worldwide, the EP-RC81<\/strong> caja de cambios de la segadora<\/a> combines 80 CV<\/strong> capacity with robust 28.7 Kg cast construction. Available in 1:1.93 \/ 1:1.46 ratio configurations, it adapts to your mowing conditions with ease.<\/p>\n

\"EP-RC81<\/div>\n

📈 EP-RC81 Technical Specifications<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Par\u00e1metro<\/th>\nEspecificaci\u00f3n<\/th>\n<\/tr>\n<\/thead>\n
N\u00famero de modelo<\/td>\nEP-RC81<\/td>\n<\/tr>\n
Tipo de caja de cambios<\/td>\nHeavy-Duty Rotary Cutter Gearbox<\/td>\n<\/tr>\n
Relaci\u00f3n(es) de transmisi\u00f3n<\/td>\n1:1.93 \/ 1:1.46<\/td>\n<\/tr>\n
Configuraci\u00f3n de los dientes<\/td>\n27\/14, 19\/13<\/td>\n<\/tr>\n
M\u00f3dulo de engranajes<\/td>\n5.5 \/ 7.0<\/td>\n<\/tr>\n
Potencia nominal<\/td>\n80 CV<\/td>\n<\/tr>\n
Velocidad de entrada<\/td>\n600 rpm<\/td>\n<\/tr>\n
Eje de entrada\/salida<\/td>\n1 3\/8 Z6, Taper spline<\/td>\n<\/tr>\n
Peso neto<\/td>\n28.7 Kg<\/td>\n<\/tr>\n
Material de engranajes<\/td>\nAcero aleado 20CrMnTi, carburizado y endurecido HRC 58-62<\/td>\n<\/tr>\n
Material de vivienda<\/td>\nHierro fundido d\u00factil (QT450-10)<\/td>\n<\/tr>\n
Protecci\u00f3n de sellado<\/td>\nRetenes de aceite multilabios NBR\/FKM, con clasificaci\u00f3n IP65+<\/td>\n<\/tr>\n
Lubricaci\u00f3n<\/td>\nAceite para engranajes SAE 80W-90 o 85W-140 EP<\/td>\n<\/tr>\n
Tratamiento de superficies<\/td>\nImprimaci\u00f3n electrofor\u00e9tica + recubrimiento en polvo de poli\u00e9ster, acabado rojo.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

\u2b50 Caracter\u00edsticas clave y ventajas de ingenier\u00eda<\/h2>\n
\n
\n

🔨<\/p>\n

Triple-Stage Shaft Sealing<\/h4>\n

Inner labyrinth + double-lip FKM seal + external V-ring slinger form a three-barrier defense against water, mud, and fine dust penetrating to the bearing cavities.<\/p>\n<\/div>\n

\n

🌡<\/p>\n

Integrated External Cooling Fins<\/h4>\n

35% additional surface area from machined cooling ribs accelerates heat rejection, keeping oil temperature below 80 \u00b0C during sustained full-load summer mowing.<\/p>\n<\/div>\n

\n

🛠<\/p>\n

18CrNiMo7-6 Aerospace Gear Steel<\/h4>\n

Vacuum-carburized gears from aircraft-grade alloy achieve HRC 60-63 surface and a tough pearlitic core, meeting AGMA Class 10 tooth accuracy standards.<\/p>\n<\/div>\n

\n

🔬<\/p>\n

98%+ Power Delivery Efficiency<\/h4>\n

Mirror-polished flanks (Ra \u2264 0.4 \u03bcm) and AGMA Class 11 accuracy virtually eliminate parasitic losses, ensuring every horsepower reaches the cutting blade.<\/p>\n<\/div>\n

\n

⚖<\/p>\n

4140 Chrome-Moly Output Flange<\/h4>\n

Forged steel output flange heat-treated to HRC 28-32, drilled for heavy-duty blade carriers up to 50 kg \u2014 eliminating the flex found in cast alternatives.<\/p>\n<\/div>\n

\n

🚀<\/p>\n

GGG-60 Heavy-Plate Housing<\/h4>\n

EN-GJS-600-3 ductile iron with 18 mm walls and FEA-optimized ribbing, engineered for sustained 150+ HP loads without measurable housing flex.<\/p>\n<\/div>\n<\/div>\n

\"Caja<\/div>\n

\ud83d\udd27 Compatibilidad de equipos y referencias cruzadas<\/h2>\n
\n

🔄 Cross-Reference Compatibility for EP-RC81<\/h3>\n

The EP-RC81 is engineered as a direct replacement or upgrade for gearboxes fitted to equipment from leading manufacturers including:<\/p>\n

LS Tractor • Fella • Sonalika • Branson • Dongfeng • John Deere • AGCO • Rhino<\/p>\n

Descargo de responsabilidad: Las marcas mencionadas anteriormente se utilizan \u00fanicamente para identificar la compatibilidad. Ever-power Australia Mower Gearbox Co., Ltd. no est\u00e1 afiliada, respaldada ni autorizada por ninguno de los fabricantes mencionados. Todas las marcas registradas pertenecen a sus respectivos propietarios.<\/p>\n<\/div>\n

\ud83d\udcda Gu\u00eda de selecci\u00f3n de cajas de cambios<\/h2>\n

Getting gearbox selection right the first time saves money and headaches. Here is a systematic approach to specifying the EP-RC81:<\/p>\n

\n📌 Cast Iron Housing vs Aluminium Housing<\/summary>\n
The EP-RC81 uses a ductile cast iron housing. Cast iron excels in vibration damping, impact resistance, and heat dissipation \u2014 ideal for rough, rocky mowing conditions. Aluminium is lighter and more corrosion-resistant, better suited to wet environments and weight-sensitive implements.<\/div>\n<\/details>\n
\n📌 Standard Catalog vs Custom Specification<\/summary>\n
The EP-RC81 is available as a standard catalog item shipping in 3-5 days. If your application requires a non-standard ratio, shaft type, or mounting configuration, our engineering team offers custom designs with 4-6 week lead times. Minimum order quantities may apply.<\/div>\n<\/details>\n
\n\ud83d\udccc Compatibilidad con el tipo de eje de salida<\/summary>\n
The EP-RC81 features 1 3\/8 Z6, Taper spline 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\ud83d\udccc Consideraciones sobre el peso y el montaje<\/summary>\n
At 28.7 Kg, the EP-RC81 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\ud83d\udccc Adaptaci\u00f3n de la relaci\u00f3n de engranajes a la velocidad de la punta de la cuchilla<\/summary>\n
For the EP-RC81 with ratio(s) 1:1.93 \/ 1:1.46, 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

\ud83c\udf3e Escenarios de aplicaci\u00f3n t\u00edpicos<\/h2>\n
\n
\n

🌾 Municipal park and recreational reserve mowing<\/p>\n<\/div>\n

\n

🚘 Silage paddock management and pasture renovation<\/p>\n<\/div>\n

\n

🌱 Construction site vegetation clearing and preparation<\/p>\n<\/div>\n

\n

⛰ Roadside and highway verge vegetation management<\/p>\n<\/div>\n

\n

🌳 Pipeline and powerline easement clearing<\/p>\n<\/div>\n<\/div>\n

\"Planta<\/div>\n

\ud83d\udee0 Gu\u00eda de instalaci\u00f3n y configuraci\u00f3n<\/h2>\n
    \n
  1. Coloque la caja de cambios sobre los esp\u00e1rragos de montaje o los orificios para los pernos, verificando que el eje de entrada est\u00e9 orientado hacia la toma de fuerza del tractor y que el eje de salida est\u00e9 alineado con el cubo de la cuchilla o el rotor.<\/li>\n
  2. Aseg\u00farese de que el eje de la toma de fuerza tenga una superposici\u00f3n de estr\u00edas de al menos 50% en todas las posiciones de funcionamiento. Una superposici\u00f3n insuficiente provoca un desgaste r\u00e1pido de las estr\u00edas y una posible separaci\u00f3n del eje.<\/li>\n
  3. Anote la fecha de instalaci\u00f3n, la lectura del contador de horas del tractor y el n\u00famero de serie de la caja de cambios en su registro de mantenimiento para el seguimiento de la garant\u00eda y los intervalos de servicio.<\/li>\n
  4. Si va a reemplazar una unidad existente, drene completamente el aceite viejo, retire los sujetadores de montaje y baje con cuidado la caja de engranajes vieja. Fotografie la posici\u00f3n y anote las arandelas de ajuste utilizadas.<\/li>\n
  5. Primero, apriete todos los tornillos de montaje a mano y, a continuaci\u00f3n, aplique el par de apriete especificado siguiendo un patr\u00f3n en cruz (o estrella) para asegurar una sujeci\u00f3n uniforme. Par de apriete t\u00edpico: 80-120 Nm, seg\u00fan el tama\u00f1o del tornillo.<\/li>\n
  6. With the implement raised and blades clear of the ground, engage the PTO at low idle speed. Listen for any unusual noise and observe for vibration or oil leaks.<\/li>\n
  7. Verify that the mower implement safety chain or restraint is properly connected to prevent the gearbox from contacting the ground if the three-point hitch fails.<\/li>\n<\/ol>\n

    \u2753 Preguntas frecuentes<\/h2>\n
    \n
    \n❓ How do I select the right gear ratio?<\/summary>\n
    \n

    Match the ratio to your blade tip speed target. Lower ratios (e.g. 1:1) give higher blade RPM for finish mowing; higher ratios (e.g. 1:1.93 or above) trade speed for torque, ideal for thick brush. Calculate: output RPM = input RPM \u00f7 ratio.<\/p>\n<\/div>\n<\/details>\n

    \n❓ What is the expected operational lifespan?<\/summary>\n
    \n

    With proper maintenance, our gearboxes typically deliver 3,000 to 5,000 operating hours. Many units in the field have exceeded 6,000 hours. Lifespan depends on operating load, maintenance compliance, and field conditions.<\/p>\n<\/div>\n<\/details>\n

    \n❓ Is this suitable for mulching applications?<\/summary>\n
    \n

    Yes. Our gearboxes are widely used on mulching mowers and brush cutters. For mulching, select a model rated 25-30% above your actual PTO horsepower to provide a safety margin against the intermittent shock loads typical of mulching.<\/p>\n<\/div>\n<\/details>\n

    \n❓ What quality inspections do you perform?<\/summary>\n
    \n

    Every gearbox undergoes 100% dimensional inspection (CMM), gear tooth geometry verification (Gleason analyzer), hardness testing, oil-leak testing, and no-load run-in testing before shipment.<\/p>\n<\/div>\n<\/details>\n

    \n❓ What warranty do you provide?<\/summary>\n
    \n

    Every gearbox ships with a 12-month warranty covering material and workmanship defects under normal operating conditions. Warranty claims are handled through our dealer network with replacement units dispatched within 48 hours of approval.<\/p>\n<\/div>\n<\/details>\n<\/div>\n

    \u2b50 Opiniones de clientes e informes de campo<\/h2>\n
    <\/p>\n
    <\/div>\n
    \n
    \n

    Dave R.<\/p>\n

    ★★★★★<\/p>\n<\/div>\n

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

    We maintain 40+ mowers for council contracts. Switching to this brand has reduced our gearbox failure rate by over 60 percent.<\/p>\n<\/div>\n

    \n
    \n

    Yusuf A.<\/p>\n

    ★★★★★<\/p>\n<\/div>\n

    📍 Konya, Turkey<\/p>\n

    Running in extreme cold (-25 \u00b0C) winters and hot summers. Synthetic oil in this gearbox handles both extremes without issue.<\/p>\n<\/div>\n

    \n
    \n

    Tom W.<\/p>\n

    ★★★★★<\/p>\n<\/div>\n

    📍 Iowa, United States<\/p>\n

    We replaced three OEM gearboxes with this model across our fleet. Gear quality and seal performance are noticeably superior. Reordering for next season.<\/p>\n<\/div>\n

    \n
    \n

    Ahmed K.<\/p>\n

    ★★★★☆<\/p>\n<\/div>\n

    📍 Faisalabad, Pakistan<\/p>\n

    Third year of heavy use on our orchard floor management. Still going strong with just regular oil changes. The best aftermarket gearbox I have found.<\/p>\n<\/div>\n

    \n
    \n

    Oleksiy H.<\/p>\n

    ★★★★☆<\/p>\n<\/div>\n

    📍 Poltava, Ukraine<\/p>\n

    Good gearbox with a solid, hefty feel. Delivery to Ukraine was fast. Only needed a small spacer washer to fit our older mower model.<\/p>\n<\/div>\n<\/div>\n

    \"Gama<\/div>\n

    ⚖ EP-RC81 vs. Low-Cost Alternatives<\/h2>\n
    \n\n\n\n\n\n\n\n\n\n\n\n
    Caracter\u00edstica<\/th>\nEP-RC81 (Ever-power)<\/th>\nAlternativa gen\u00e9rica\/de bajo costo<\/th>\n<\/tr>\n<\/thead>\n
    Warranty<\/td>\n✔ 12-Month Full Manufacturer Warranty<\/td>\n✘ 3-6 Month Limited Warranty<\/td>\n<\/tr>\n
    Seal Longevity<\/td>\n✔ FKM\/Viton Seals, 2000+ Hour Service Life<\/td>\n✘ NBR Seals, 500-800 Hours Before Leaking<\/td>\n<\/tr>\n
    Breather<\/td>\n✔ Labyrinth Stainless Steel Breather Valve<\/td>\n✘ Simple Open Vent Hole, Allows Water Entry<\/td>\n<\/tr>\n
    Gear Forging Method<\/td>\n✔ Closed-Die Forged, Grain-Flow Aligned<\/td>\n✘ Open-Die Forged or Cast, Weak Grain Structure<\/td>\n<\/tr>\n
    Cooling Design<\/td>\n✔ Machined External Cooling Fins, 35% More Area<\/td>\n✘ Smooth Housing, Poor Heat Dissipation<\/td>\n<\/tr>\n
    Output Flange<\/td>\n✔ Forged Steel, Heat-Treated HRC 28-32<\/td>\n✘ Cast Iron, Untreated, Prone to Cracking<\/td>\n<\/tr>\n
    Material de engranajes<\/td>\n✔ 20CrMnTi Forged Alloy Steel, Carburized HRC 58-62<\/td>\n✘ 45# Carbon Steel, Surface Hardened HRC 40-45<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

    \ud83d\udd04 Productos y accesorios relacionados<\/h2>\n
    \n

    \n\"Safety-Guarded<\/p>\n
    \n

    Safety-Guarded PTO Shafts<\/p>\n

    CE-marked PTO shafts with full plastic guards for operator safety compliance.<\/p>\n<\/div>\n

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

    \n

    Flail Mower Hammer Kits<\/p>\n

    Y-blade, hammer, and T-blade flail sets for all common flail mower rotor shafts.<\/p>\n<\/div>\n

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

    \n

    Industrial Gearbox Range<\/p>\n

    Worm, helical, and planetary gearboxes for non-agricultural industrial applications.<\/p>\n<\/div>\n

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

    Explore nuestra gama completa de componentes de transmisi\u00f3n agr\u00edcola<\/a> including PTO shafts, gears, pulleys, chains, and sprockets \u2014 all engineered to integrate seamlessly with EP-RC81 gearboxes.<\/p>\n<\/div>\n

    \ud83c\udfc6 Certificaciones y est\u00e1ndares de calidad<\/h2>\n

    Our production of the EP-RC81 follows ISO 9001:2015 requirements with additional internal standards that exceed baseline certification. Key processes include: 100% CMM dimensional verification, Vickers hardness mapping on every gear, hydrostatic housing leak test at 1.5\u00d7 rated pressure, and a 15-minute no-load run-in test. Test reports accompany every shipment.<\/p>\n

    \ud83c\udfed \u00bfPor qu\u00e9 elegir Ever-power Australia Mower Gearbox Co.,Ltd.?<\/h2>\n

    What sets Ever-power Australia Mower Gearbox Co.,Ltd. apart is our ability to scale seamlessly from engineering support for a single unique application to mass production of 50000+ units per year without any compromise in quality. Our 13 gear production lines, climate-controlled metrology lab, and experienced technical sales team work together to make your sourcing process as efficient as your fieldwork needs to be.<\/p>\n

    \"eje<\/div>\n
    \n

    📞 Get Your EP-RC81 Quote Today<\/h3>\n

    Stop losing field time to gearbox failures. The EP-RC81 is built to run all season without skipping a beat. Talk to our specialists about the right configuration for your operation.<\/p>\n

    Solicitar presupuesto<\/a>Ver todos los productos<\/a><\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

    Rated at 80 HP with 600 RPM input compatibility, the EP-RC81 bridges the gap between standard and heavy-duty mowing. Cattle ranch operators and council vegetation teams appreciate its dual 1:1.93\/1:1.46 ratio options and taper-spline output for fast blade assembly changes in the field.<\/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":[3101,3100,3104,3102,3103],"class_list":{"0":"post-1438","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-mower-gearbox","7":"product_tag-600-rpm-mower-gearbox","8":"product_tag-80hp-rotary-cutter-gearbox","9":"product_tag-agricultural-bevel-gearbox","10":"product_tag-heavy-duty-lawn-mower-gearbox","11":"product_tag-taper-spline-gearbox","13":"first","14":"instock","15":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/mowergearbox.top\/es\/wp-json\/wp\/v2\/product\/1438","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mowergearbox.top\/es\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/mowergearbox.top\/es\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/mowergearbox.top\/es\/wp-json\/wp\/v2\/comments?post=1438"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mowergearbox.top\/es\/wp-json\/wp\/v2\/media\/1404"}],"wp:attachment":[{"href":"https:\/\/mowergearbox.top\/es\/wp-json\/wp\/v2\/media?parent=1438"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/mowergearbox.top\/es\/wp-json\/wp\/v2\/product_brand?post=1438"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/mowergearbox.top\/es\/wp-json\/wp\/v2\/product_cat?post=1438"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/mowergearbox.top\/es\/wp-json\/wp\/v2\/product_tag?post=1438"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}