EP-RC51 Lawn Mower Gearbox

EP-RC51 Lawn Mower Gearbox

The EP-RC51 is a 30 HP dual-ratio gearbox weighing 29 kg with both spline and taper-spline output options. Farmers looking for a rugged, no-frills replacement gearbox for 5-foot and 6-foot rotary cutters find the RC51 delivers the right balance of build quality, versatility, and value.

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Descripción


EP-RC51 — Engineered for Australian & Global Farming Conditions

El EP-RC51 from Ever-power Australia Mower Gearbox Co.,Ltd. is a field-proven right-angle gearbox built for rotary mower and brush cutter applications. Its 30 HP capacity and hardened bevel gears keep your operation running efficiently from dawn to dusk, season after season.

EP-RC51 Rotary Cutter Gearbox

📈 EP-RC51 Technical Specifications

Parámetro Especificación
Número de modelo EP-RC51
Tipo de caja de cambios Rotary Cutter Gearbox
Relación(es) de transmisión 1:1.47 / 1:1.93
Configuración de los dientes 22/15, 29/15
Módulo de engranajes 5.08 / 4.0
Potencia nominal 30 HP
Velocidad de entrada 540 rpm
Eje de entrada/salida Spline / Taper spline
Peso neto 29 Kg
Material de engranajes Acero aleado 20CrMnTi, carburizado y endurecido HRC 58-62
Material de vivienda Grey Cast Iron (HT200/HT250)
Protección de sellado Retenes de aceite multilabios NBR/FKM, con clasificación IP65+
Lubricación Aceite para engranajes SAE 80W-90 o 85W-140 EP
Tratamiento de superficies Imprimación electroforética + recubrimiento en polvo de poliéster, acabado rojo.

⭐ Características clave y ventajas de ingeniería

🔄

Juntas de alta temperatura FKM Viton

Los sellos de eje de fluoroelastómero tienen una clasificación de temperatura de -25 °C a +200 °C, lo que garantiza un rendimiento sin fugas ante las fluctuaciones extremas de temperatura estacionales que se producen en la agricultura en cualquier condición climática.

🔨

Perfil de buje inferior a 180 mm

Su diseño vertical delgado permite una separación reducida entre los discos para un corte continuo y sin superposiciones, algo fundamental para la formación de hileras limpias en densos pastizales de alfalfa y pastos mixtos.

🌡

Cartuchos de rodamientos autónomos

Los cojinetes de cartucho precargados y prelubricados se instalan fácilmente para un reemplazo rápido en el campo, reduciendo el tiempo de inactividad no planificado debido a fallas en los cojinetes hasta en 70%.

🛠

Relleno de PAO sintético, de -40 a +150 °C

Envasado de fábrica con aceite para engranajes de polialfaolefina que mantiene la estabilidad de la viscosidad desde arranques en frío en el Ártico hasta un funcionamiento prolongado a altas temperaturas en zonas tropicales, sin degradación.

🔬

Through-Hardened Spur Gear Train

HRC 56-60 alloy steel spur gears designed for the high-impact reversing loads encountered during aggressive rotary tiller soil engagement.

⚖

3× Peak Torque Output Capacity

Oversized output shaft rated for transient torques three times nominal, absorbing the repeated shock loads when tiller blades strike buried rocks and roots.

Caja de engranajes de segadora para uso agrícola

🔧 Compatibilidad de equipos y referencias cruzadas

🔄 Cross-Reference Compatibility for EP-RC51

The EP-RC51 is engineered as a direct replacement or upgrade for gearboxes fitted to equipment from leading manufacturers including:

Bush Hog • Kioti • Vicon • Bomford • Valtra • Yanmar • Lovol • New Holland

Descargo de responsabilidad: Las marcas mencionadas anteriormente se utilizan únicamente para identificar la compatibilidad. Ever-power Australia Mower Gearbox Co., Ltd. no está afiliada, respaldada ni autorizada por ninguno de los fabricantes mencionados. Todas las marcas registradas pertenecen a sus respectivos propietarios.

📚 Guía de selección de cajas de cambios

The correct gearbox specification depends on your tractor, implement, and field conditions. Evaluate these factors for the EP-RC51:

📌 Standard Catalog vs Custom Specification
The EP-RC51 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.
📌 Compatibilidad con el tipo de eje de salida
The EP-RC51 features Spline / Taper spline output. Verify your blade hub or implement rotor accepts this shaft type before ordering. We offer multiple output configurations — spline, taper, keyway, and flange — to match virtually any existing installation.
📌 Consideraciones sobre el peso y el montaje
At 29 Kg, the EP-RC51 is designed for compact and sub-compact tractor implements. 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.
📌 Adaptación de la relación de engranajes a la velocidad de la punta de la cuchilla
For the EP-RC51 with ratio(s) 1:1.47 / 1:1.93, 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 ÷ ratio. Multiply by blade diameter to get tip speed.
📌 Dimensionamiento de la potencia nominal en relación a la potencia de la toma de fuerza del tractor (HP)
The EP-RC51 is rated at 30 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.

🌾 Escenarios de aplicación típicos

🌾 Forestry site preparation and plantation row clearing

🚘 Stubble incorporation and green manure tillage

🌱 Municipal park and recreational reserve mowing

⛰ Silage paddock management and pasture renovation

🌳 Construction site vegetation clearing and preparation

Planta de fabricación de Ever-power Australia Mower Gearbox Co., Ltd.

🛠 Guía de instalación y configuración

  1. Before operating at full load, run through a graduated break-in sequence: 30 minutes at half-throttle, then 30 minutes at three-quarter throttle, before engaging full PTO speed.
  2. Inspect the implement mounting pad for flatness using a straightedge. Any warping exceeding 0.5 mm should be corrected before the new gearbox is installed.
  3. Use Nord-Lock washers or thread-locking compound on all mounting bolts to prevent vibration-induced loosening during operation.
  4. Haga funcionar la caja de cambios sin carga durante 5-10 minutos, luego apáguela y vuelva a comprobar el nivel de aceite; los sellos y cojinetes nuevos suelen absorber una pequeña cantidad de aceite inicial.
  5. Limpie a fondo la superficie de montaje del implemento, eliminando todo el óxido, los restos de juntas viejas, las escamas de pintura y los residuos que puedan impedir un contacto perfecto con la brida de la caja de engranajes.
  6. Coloque la caja de cambios sobre los espárragos de montaje o los orificios para los pernos, verificando que el eje de entrada esté orientado hacia la toma de fuerza del tractor y que el eje de salida esté alineado con el cubo de la cuchilla o el rotor.
  7. Asegúrese de que el eje de la toma de fuerza tenga una superposición de estrías de al menos 50% en todas las posiciones de funcionamiento. Una superposición insuficiente provoca un desgaste rápido de las estrías y una posible separación del eje.

❓ Preguntas frecuentes

❓ What PTO shaft should I pair with this gearbox?

Use a standard agricultural PTO shaft rated for your tractor HP output with the matching spline profile. We strongly recommend shafts with shear bolt or friction clutch protection to prevent gearbox damage from sudden overloads.

❓ How does your pricing compare to genuine OEM parts?

Our gearboxes use equivalent or superior materials at typically 30-50% less than OEM pricing. Independent testing confirms comparable or better performance and service life. The savings are significant for fleet operators.

❓ What gear oil specification does this gearbox require?

Use SAE 80W-90 or SAE 85W-140 GL-5 extreme-pressure gear oil under normal conditions. For sub-zero climates below -20 °C, a synthetic 75W-90 ensures proper cold-start flow. Always check the sight glass or dipstick before each shift.

❓ Which tractor brands are compatible?

Our gearboxes use standard PTO connections (1 3/8″ 6-spline or 1 3/4″ 20-spline) compatible with virtually every brand — John Deere, Kubota, Massey Ferguson, New Holland, Case IH, Kioti, Mahindra, and more.

❓ How noisy is this gearbox during operation?

Our spiral bevel designs produce 72-78 dB(A) at 1 metre under rated load — significantly quieter than straight-bevel alternatives (typically 82-88 dB). Operators notice a meaningful reduction in gear whine.

⭐ Opiniones de clientes e informes de campo

★★★★★

📍 Tasmania, Australia

We tested this against a competitor unit side by side. This one runs quieter, stays cooler, and the oil stayed cleaner over 200 hours.

★★★★★

📍 Otago, New Zealand

First purchase from this manufacturer and I am thoroughly impressed. Build quality, documentation, and support were all top-notch.

★★★★★

📍 Normandy, France

After comparing specifications across five brands, this offered the best combination of materials, weight, and price. No regrets.

★★★★☆

📍 Konya, Turkey

Fitted to my brush hog last season. Over 400 hours and counting — zero leaks, minimal noise. Excellent value for a professional-grade unit.

★★★★☆

📍 Iowa, United States

Running it on a 55-70 HP tractor through rocky paddocks. Handles rocks and rough ground without complaint. Very impressed with the build.

Gama de cajas de cambios agrícolas

⚖ EP-RC51 vs. Low-Cost Alternatives

Característica EP-RC51 (Ever-power) Alternativa genérica/de bajo costo
Bearing Installation ✔ Interference Fit via Induction Heating ✘ Press Fit, Risk of Spinning-In-Bore
Bearing Preload ✔ Precision Shimmed, Zero End-Play ✘ No Preload Adjustment, Excessive Play
Gasket System ✔ Fluorocarbon O-Ring, No Re-Torque Needed ✘ Paper Gasket, Requires Annual Re-Torque
Lubrication System ✔ Splash + Directional Baffles, Full Coverage ✘ Basic Splash Only, Uneven Distribution
Housing ✔ Ductile Cast Iron or HT250 Grey Iron, 12-14mm Wall ✘ Thin-Wall Recycled Cast Iron, 8mm Wall
Surface Finish ✔ E-Coat Primer + Powder Coat, 80μm Total ✘ Spray Paint, 30-40μm, Chips Within Months
Noise Level ✔ 72-78 dB at 1m, Spiral Bevel Design ✘ 82-88 dB at 1m, Straight Bevel Design

🔄 Productos y accesorios relacionados

🏆 Certificaciones y estándares de calidad

Quality assurance is embedded in every step of EP-RC51 production, certified to ISO 9001:2015 standards. All forged gear blanks are ultrasonically inspected per ASTM A388 to ensure zero internal defects. Finished gears are checked on Gleason analyzers for profile, lead, pitch, and runout accuracy. Each assembled unit is run-tested at rated speed before release.

🏭 ¿Por qué elegir Ever-power Australia Mower Gearbox Co.,Ltd.?

Ever-power Australia Mower Gearbox Co.,Ltd. was founded with a simple mission: give farmers worldwide access to durable, fairly priced power transmission components. Today, our vertically integrated operation — from raw steel procurement to finished-product testing — processes over 4100 tonnes of alloy steel annually. Our ISO 9001:2015-certified factory employs 260 skilled technicians and engineers, each contributing to our industry-leading 98.5% on-time delivery rate and less than 0.3% field return rate.

eje de transmisión de la toma de fuerza

📞 Get Your EP-RC51 Quote Today

Whether you need a single EP-RC51 replacement or a container load for your production line, we deliver. Reach out to our sales team for volume pricing and priority lead times.

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