Gearbox for Rapeseed/Canola Harvester

Bearing kits (input & output), seal kits (all positions), matched gear pairs, shaft assemblies, overhaul kits, hardware packs. All ship within 24-48 hours.

Cómo: Refer to your canola harvester manufacturer’s manual for the recommended header drive operating speed

Por qué es importante: Together with PTO speed, this defines the exact gear ratio your gearbox needs

Cómo: Estimate your annual operating hours for the canola harvester to determine appropriate service life rating

Por qué es importante: High-hour operations justify premium bearing and gear specifications for lowest cost per hour

Cómo: Anote la marca, el número de modelo y cualquier número de pieza que aparezca en la placa de identificación de la caja de cambios que se va a reemplazar.

Por qué es importante: Speeds up the matching process and ensures dimensional compatibility with your canola harvesting equipment

Cómo: Calculate the peak torque your rapeseed harvesting application generates — including shock loads from obstacles or material variations

Por qué es importante: La caja de cambios debe soportar el par máximo sin activar la protección contra sobrecarga durante el funcionamiento normal.

Cómo: Match the gearbox HP rating to your tractor’s PTO horsepower output and the canola harvester’s demand

Por qué es importante: Under-rating leads to overheating and premature failure; over-rating adds unnecessary cost and weight

Cómo: Identify the coupling type on your canola harvester — keyed, splined, flanged, or hollow bore

Por qué es importante: Las salidas incompatibles requieren costosos acoplamientos adaptadores e introducen posibles puntos de fallo.

Cómo: Assess exposure to dust, moisture, chemicals, and temperature extremes in your typical rapeseed harvesting conditions

Por qué es importante: Determina el grado de sellado, el recubrimiento de la superficie y las especificaciones del material de la carcasa adecuados.

Attach the gearbox output shaft to the canola harvester’s header drive drive coupling. For keyed connections, align the keyway and slide the coupling on, then secure with the retaining bolt and torque to specification. For splined outputs, apply anti-seize to the splines and verify full engagement before locking.

After the first 10 hours of field operation, re-torque all mounting bolts to specification. Check the oil level and top up if necessary. Inspect all seals for any signs of weeping. Verify the driveline guard is properly reinstalled. Record the installation date and hour-meter reading for future maintenance scheduling.

Align the PTO driveline with the gearbox input shaft and slide the yoke onto the splines until the locking mechanism engages. Verify the spline count matches (6-spline for 540 RPM, 21-spline for 1000 RPM). Check that driveline operating angles do not exceed 15° — excessive angles cause premature U-joint failure and vibration.

Clean the mounting flange on the canola harvester frame with a wire brush and solvent, removing all old sealant, rust, and debris. Inspect the mounting surface for cracks, stripped threads, or warping. Chase any damaged bolt threads with a tap. Apply a thin film of anti-seize compound to the mounting face if specified.

Locate the drain plug on the existing gearbox and position a catch container underneath. Remove the drain plug and allow all oil to drain completely — inspect the oil for metal particles or discolouration that may indicate internal wear. Record the old gearbox model number, mounting bolt size, and shaft dimensions for reference.

Remove the fill plug and slowly add the recommended gear oil until it reaches the level indicator. Use the lubricant grade specified in the gearbox documentation (typically SAE 80W-90 GL-5 or equivalent). Replace the fill plug and hand-tighten, then snug with a wrench. Verify the breather cap is clean and unobstructed.

Park the tractor on firm, level ground. Engage the parking brake and place wheel chocks. Turn off the engine and remove the key. Disconnect the PTO shaft from the canola harvester. Allow all components to cool completely before touching. Wear appropriate PPE including gloves and safety glasses.

Carefully lift the new Rapeseed/Canola Harvester gearbox into position on the mounting flange, aligning all bolt holes. Insert mounting bolts hand-tight first, confirming proper alignment. Once all bolts are started, torque them in a star (cross) pattern to the value specified in the installation manual. Verify the gearbox sits flush against the frame with no gaps.

Probable Cause: Dientes de engranaje desgastados o engranaje roto

Recommended Action: Check the overload protection device first — this is the most likely cause if the gearbox was recently subjected to a sudden overload. Replace the shear bolt or reset the slip clutch per the manual. If overload protection is intact, the gearbox has internal damage and requires professional service.

Probable Cause: Operating beyond rated horsepower or duty cycle

Recommended Action: Check oil level and grade against the specification. Clean all debris from the housing exterior — especially the cooling fins. If the canola harvester is being operated at or above the gearbox’s rated power, reduce forward speed or PTO load. Consider upgrading to synthetic gear oil for improved thermal performance.

Probable Cause: Componentes internos sueltos o piezas de sujeción

Recommended Action: A clunking sound specifically on PTO engagement (but not during operation) usually indicates driveline lash — check driveline telescoping tube for wear. If the clunk occurs during operation, it may indicate excessive gear backlash from internal wear. Have the gearbox inspected if the sound is progressive.

Probable Cause: Rust or debris on the input shaft splines

Recommended Action: Clean the input shaft splines with a wire brush and apply a light coat of anti-seize. Slowly rotate the PTO shaft while pushing to align the splines. If the splines will not engage, verify the spline count matches your PTO standard — 6-spline for 540 RPM, 21-spline for 1000 RPM.

Probable Cause: Lubricante insuficiente o grado de aceite incorrecto

Recommended Action: Drain and inspect oil for metal particles. Refill with correct grade. If noise persists after oil change, bearing or gear inspection is required. Contact support for rebuild guidance.

Cada caja de cambios incluye: manual de instalación con especificaciones de par, programa de lubricación y mantenimiento, diagrama de piezas con números de pieza individuales, tarjeta de registro de garantía y un certificado de inspección de calidad con el número de serie de la unidad y los resultados de las pruebas.

Si nos facilita los detalles de su equipo antes de realizar el pedido y confirmamos la compatibilidad, le garantizamos que encajará perfectamente. En el improbable caso de que surja algún problema de compatibilidad, le ofrecemos un cambio o reembolso sin preguntas para las cajas de cambios sin usar dentro de los 30 días posteriores a la entrega. Nuestro objetivo es que reciba la caja de cambios correcta en su primer pedido.

We offer tiered pricing starting from single-unit purchases, with meaningful discounts beginning at 5+ units. Dealer and OEM pricing structures are available for agricultural equipment retailers and canola harvester manufacturers. Contact our sales team for a formal quotation tailored to your volume requirements.

Each gearbox is drained of shipping oil, wrapped in VCI (Vapor Corrosion Inhibitor) film, and crated in a sturdy plywood box rated for international freight. This packaging protects against moisture, impact, and corrosion during transit — even for shipments to remote Australian properties via road freight.

Our 24-month comprehensive warranty covers all defects in materials and workmanship, including bearings, gears, seals, and housing. It applies from the date of purchase and is backed by our ISO-certified quality management system. Extended warranty programs are available for bulk and fleet orders.

We maintain compatibility databases covering canola harvester models from the past 25+ years. Most older models can be directly fitted with our current gearbox range. For discontinued or rare models, send us the mounting dimensions and shaft specifications, and we will confirm fitment or design a custom adapter.

Absolutely. We manufacture gearboxes with keyed, splined, flanged, hex, and hollow-bore output shaft configurations. If your canola harvester requires a non-standard output size, spline count, or connection type, our engineering team will design and machine it to your exact specifications at no additional lead time for common modifications.

Yes — every purchase includes access to our engineering support team for installation guidance, troubleshooting, maintenance advice, and parts ordering. Support is available via phone, email, and our online contact form. There is no charge for technical support during or after the warranty period.

Aceptamos transferencias bancarias, tarjetas de crédito y órdenes de compra de cuentas establecidas. Para pedidos grandes, ofrecemos plazos de pago de 30 días, sujetos a aprobación de crédito. Puede realizar su pedido a través de nuestra página web, por correo electrónico o por teléfono. Disponemos de facturas proforma para pagos anticipados.

Yes — we ship to every postcode in Australia, including remote and regional areas. We use experienced agricultural freight carriers who understand the urgency of seasonal equipment needs. Express shipping is available for emergency breakdown situations, and we maintain stock for immediate dispatch of popular models.