Caja de cambios para cortacésped EP-BGB8

Caja de cambios para cortacésped EP-BGB8

The EP-BGB8 provides dual ratios (1:1 and 1.67:1) in a lightweight 18 kg package rated at 30 HP. First-time gearbox buyers and budget-conscious small farmers choose the BGB8 for its simple, reliable construction and the flexibility to gear up or down depending on whether they are mowing fine grass or taller weeds.

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Descripción


EP-BGB8 Dual-Ratio Rotary Cutter Gearbox — Precision Power Transmission for Modern Mowing

El EP-BGB8 represents the latest in caja de cambios agrícola engineering. With 30 HP capacity, 1:1 / 1.67:1 ratio configuration, and 18 Kg optimized construction, it delivers the power density and reliability today’s farming operations require.

EP-BGB8 Dual-Ratio Rotary Cutter Gearbox

📈 EP-BGB8 Technical Specifications

Parámetro Especificación
Número de modelo EP-BGB8
Tipo de caja de cambios Dual-Ratio Rotary Cutter Gearbox
Relación(es) de transmisión 1:1 / 1.67:1
Configuración de los dientes 22/15, 15/25
Módulo de engranajes 5.08 / 4.0
Potencia nominal 30 HP
Velocidad de entrada 540 rpm
Eje de entrada/salida 1 3/8 Z6 / 1 3/8 Z6
Peso neto 18 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

🛠

Split-Line O-Ring Seal

Precision-machined housing split line with fluorocarbon O-ring eliminates the gasket creep and re-torque requirements of traditional paper or RTV gasket joints.

🔬

Low-Backlash Preloaded Assembly

Bearing preload and controlled gear mesh clearance hold total backlash below 0.08 mm, critical for reversing-load applications and precision-cut implements.

⚖

Redundant Lubrication Groove System

Machined oil distribution grooves in the housing bore supplement splash lubrication, providing a secondary oil path to bearings if sump level drops slightly below specification.

🚀

Reinforced Grey Cast Iron Housing

HT250-grade grey iron casing with 14 mm wall thickness, ribbed for vibration damping and thermal dissipation, resisting cracking from rock strikes at mowing speed.

💪

Standard 1 3/8″ 6-Spline PTO Input

Industry-standard input spline accepts all 540 RPM PTO shafts, ensuring bolt-on compatibility with tractors from 15 HP sub-compacts to 50 HP utility models.

⚙

Induction-Hardened Output Shaft

Output shaft journals hardened to HRC 50-55 via controlled induction heating, extending bearing seat life beyond 3,000 operating hours before re-machining is needed.

Caja de engranajes de segadora para uso agrícola

🔧 Compatibilidad de equipos y referencias cruzadas

🔄 Cross-Reference Compatibility for EP-BGB8

The EP-BGB8 is engineered as a direct replacement or upgrade for gearboxes fitted to equipment from leading manufacturers including:

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

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

Selecting a gearbox that matches your exact requirements avoids premature wear and costly downtime. Consider these points for the EP-BGB8:

📌 Consideraciones sobre el peso y el montaje
At 18 Kg, the EP-BGB8 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-BGB8 with ratio(s) 1:1 / 1.67:1, 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-BGB8 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.
📌 Selección de toma de fuerza (PTO) de 540 RPM frente a 1000 RPM
The EP-BGB8 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 — the doubled speed will destroy bearings and gears within minutes.
📌 Cast Iron Housing vs Aluminium Housing
The EP-BGB8 uses a grey cast iron housing. Cast iron excels in vibration damping, impact resistance, and heat dissipation — ideal for rough, rocky mowing conditions. Aluminium is lighter and more corrosion-resistant, better suited to wet environments and weight-sensitive implements.

🌾 Escenarios de aplicación típicos

🌾 Railway corridor vegetation control programs

🚘 Estate, golf course, and sportsfield maintenance

🌱 Flail mulching of pruning residue in fruit plantations

⛰ Orchard and vineyard floor maintenance between rows

🌳 Mining site vegetation rehabilitation and control

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

🛠 Guía de instalación y configuración

  1. 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.
  2. 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.
  3. 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.
  4. 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.
  5. Anote la fecha de instalación, la lectura del contador de horas del tractor y el número de serie de la caja de cambios en su registro de mantenimiento para el seguimiento de la garantía y los intervalos de servicio.
  6. 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 posición y anote las arandelas de ajuste utilizadas.
  7. Primero, apriete todos los tornillos de montaje a mano y, a continuación, aplique el par de apriete especificado siguiendo un patrón en cruz (o estrella) para asegurar una sujeción uniforme. Par de apriete típico: 80-120 Nm, según el tamaño del tornillo.

❓ Preguntas frecuentes

❓ Can this unit directly replace my OEM gearbox?

Yes. Our mounting patterns, shaft diameters, and spline profiles match industry-standard OEM dimensions. We supply detailed technical drawings for cross-referencing. If your existing unit differs slightly, our engineering team can advise on adapters.

❓ What happens if I accidentally run it dry?

Stop the PTO immediately. Even a few minutes without oil causes severe gear scoring and bearing damage, typically requiring a full internal rebuild. Always verify oil level before engaging the PTO.

❓ How should I store the gearbox off-season?

Run briefly to warm the oil, then top up to the full mark. Apply grease to exposed shaft surfaces and seal any open ports. Store in a dry, covered area. Before next season, verify oil level and rotate input by hand to check free movement.

❓ Can I replace just the gear set?

Yes. Replacement gear sets are available for all models and are cost-effective when the housing, bearings, and shafts remain in good condition. We recommend replacing bearings and seals simultaneously for best results.

❓ Can this gearbox handle reverse PTO rotation?

Our spiral bevel designs operate correctly in both rotational directions without modification. However, check your specific implement requirements, as some mower blade assemblies are direction-sensitive.

⭐ Opiniones de clientes e informes de campo

★★★★★

📍 Nueva Gales del Sur, Australia

Perfect for our roadside mowing. The compact design fits between rows with room to spare. Very reliable day-to-day operation.

★★★★★

📍 Canterbury, Nueva Zelanda

Buena relación calidad-precio. Nuestro equipo somete estas cajas de cambios a un uso intensivo y resisten mejor que las marcas anteriores que hemos probado.

★★★★★

📍 Krasnodar, Rusia

Hemos instalado seis de estos equipos en nuestra flota. Todas y cada una de las unidades han funcionado a la perfección durante dos temporadas completas de siega.

★★★★☆

📍 Emilia-Romagna, Italy

Excellent for hay field cutting. The cooling fin design makes maintenance easy and keeps unplanned downtime to a minimum.

★★★★☆

📍 Jalisco, Mexico

Runs noticeably cooler than the old gearbox it replaced. The improved cooling design and better oil volume are making a real difference.

Gama de cajas de cambios agrícolas

⚖ EP-BGB8 vs. Low-Cost Alternatives

Característica EP-BGB8 (Ever-power) Alternativa genérica/de bajo costo
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
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

🔄 Productos y accesorios relacionados

🏆 Certificaciones y estándares de calidad

The EP-BGB8 is produced in our ISO 9001:2015 certified facility with full material traceability from steel mill to finished product. We perform incoming material inspection (spectrometry and hardness), in-process dimensional verification at every machining stage, and final assembly testing that includes noise, vibration, and oil-leak checks. Certificates of conformance are available on request.

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

Choosing Ever-power Australia Mower Gearbox Co.,Ltd. means partnering with a manufacturer that understands agricultural machinery from the ground up. Our R&D team develops 19 new gearbox models each year, collaborating directly with implement OEMs in Australia, Germany, the United States, Brazil, and beyond. Whether you need a standard catalog gearbox shipped next week or a fully custom design with unique ratios and mounting interfaces, we deliver — on specification, on budget, and on time.

eje de transmisión de la toma de fuerza

📞 Get Your EP-BGB8 Quote Today

Upgrade from unreliable aftermarket gearboxes to the proven EP-BGB8. Our team is ready to provide datasheets, cross-reference guides, and a no-obligation quotation within 24 hours.

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