The LF-205J rotary mower gearbox, engineered by TEBSA in Argentina, is a powerhouse for rotary mowers, seamlessly transferring engine power to cutting blades. By leveraging a series of precision gears, it slows engine speed while amplifying torque, enabling effortless slicing through dense grass, stubborn weeds, and overgrown vegetation. Whether you're maintaining vast fields in the Pampas or tidying up a local farm in Córdoba, this gearbox delivers the strength needed for Argentina’s demanding agricultural landscape.

Built with rugged cast iron GGG40, the LF-205J is encased in a durable housing that stands up to rough conditions. Inside, you’ll find critical components like the input shaft (1-3/8" 6-spline), output shaft (1-1/4" round with a 1/4" keyway), high-quality gears, bearings, and seals. The input shaft connects directly to the tractor’s engine, while the output shaft drives the blades. Gears reduce speed and boost torque, bearings ensure smooth operation, and seals lock in lubricant while keeping out dirt and debris. Rated at 30 HP at 540 RPM with a 1:1.92 gear ratio, it’s designed for clockwise rotation, making it a perfect replacement for the Comer LF-205J model.

This gearbox is the heart of any rotary mower, ensuring blades spin at the right speed to tackle tough jobs. Without it, cutting through thick crops like soybean stubble or wheat fields would be a struggle. While generally low-maintenance, keeping it clean and following TEBSA’s oil change schedule (using 80W-90 oil, 0.8L capacity) prevents overheating and extends its life. If issues arise, trust a qualified technician to handle repairs—DIY fixes risk damage and voided warranties.

Specifications of Rotary Mower Gearbox LF-205J

Why Choose the LF-205J for Your Mowing Needs

The LF-205J rotary mower gearbox from TEBSA offers unmatched performance for farmers and landscapers in Argentina. Here’s what sets it apart:

Top-Notch Efficiency: Its 1:1.92 gear ratio optimizes power delivery, letting blades cut cleanly through thick grass or crop residue in fields from Buenos Aires to Mendoza. You’ll finish jobs faster with less strain on your tractor.

Rugged Build: Made with cast iron GGG40 and treated with advanced processes like carburization, this gearbox laughs off the dust, heat, and bumps of Argentina’s farmlands. It’s built to last, just like TEBSA’s reputation since 1997.

Versatile Fit: Designed as a drop-in replacement for Comer LF-205J, it suits a range of rotary mowers used for pasture management, roadside maintenance, or soybean field prep. The 30 HP rating handles small to medium tasks with ease.

Safe and Steady: With TEBSA’s 100% quality guarantee, you get reliable operation that keeps your crew safe, whether you’re mowing near Rosario or in rural La Pampa.

Low Maintenance: Change the oil after 50 hours initially, then every 500 hours, and keep it clean. That’s it. Our engineering team is ready to answer questions within 24 hours if you need support.

Cost Savings: At 50% less than original brands, the LF-205J delivers premium performance without breaking the bank, leaving you more to invest in your farm.

Applications and Performance in Argentine Agriculture

The LF-205J shines in Argentina’s diverse farming landscape, where crops like soybeans, wheat, and corn dominate. It’s a go-to for rotary mowers tackling:

Pasture Maintenance: Clear overgrown grass to keep grazing lands productive, especially in the fertile Pampas.
Crop Residue Management: Chop down soybean or wheat stubble to prep fields for the next planting season.
Roadside and Lot Clearing: Maintain clean edges along rural roads in Córdoba or industrial lots in Santa Fe.
Landscaping: Shape lawns or clear weeds for commercial properties in Buenos Aires.

Its 22 kW (30 HP) capacity and clockwise rotation make it ideal for small to mid-sized tractors common in Argentina. The 1-3/8" 6-spline input shaft ensures a snug fit with standard PTOs, while the 1-1/4" keyed output shaft drives blades with precision. At just 16 kg, it’s easy to install without sacrificing strength.

For tougher jobs, pair it with TEBSA’s alloy steel PTO shafts, forged for extra durability. The gearbox’s cast iron housing, treated with blackening for corrosion resistance, holds up against Argentina’s humid summers and dusty winters. Regular checks—keeping seals tight and oil fresh—ensure it runs smoothly season after season.

Here’s a quick look at compatible equipment:

Maintenance Tips and Technical Insights

To keep your LF-205J rotary mower gearbox performing at its best, follow these practical steps:

Initial Break-In: After the first 50 hours, drain and replace the oil (80W-90, 0.8L) to clear any manufacturing debris.
Regular Oil Checks: Every 500 hours, swap out the oil to maintain smooth gear meshing. Use only SAE 80W-90 for optimal viscosity.
Clean Exterior: Wipe down the housing after use to prevent dirt buildup, especially in dusty areas like San Luis.
Inspect Seals: Check for leaks around the input and output shafts. A tight seal keeps lubricant in and contaminants out.
Alignment Matters: Ensure the gearbox and mower are properly aligned to avoid uneven wear or vibration.

The LF-205J’s technical design is a testament to TEBSA’s expertise. Its 20 daNm output torque delivers the force needed for heavy cutting, while the 1:1.92 ratio balances speed and power. The cast iron GGG40 housing, known for its high tensile strength, resists cracks even under shock loads. Bearings are precision-machined to reduce friction, and seals are engineered to withstand Argentina’s variable climate.

For those diving deeper, here’s a breakdown of key technical features:

If you’re unsure about performance at different RPMs or need setup advice, TEBSA’s team responds within 24 hours, ensuring you’re never stuck.

About TEBSA and Our Agricultural Solutions

Since 1997, TEBSA has been a trusted name in Argentina, crafting agricultural gearboxes and components with a focus on quality and affordability. Based in the heart of Argentina’s farming region, we understand the needs of local growers, from small farms in La Pampa to large operations in Santa Fe. Our ISO9001-2015 certification backs our 100% quality guarantee, and our 50% cost advantage over original brands makes us a smart choice for farmers and businesses alike. With a skilled engineering team ready to assist within 24 hours, we’re your reliable partner for agricultural machinery.

Beyond the LF-205J rotary mower gearbox, TEBSA offers a wide range of products to power your farm:

Rotary Cutter Gearboxes: Like our RC-61 model, ideal for heavy-duty cutting.
Fertilizer Spreader Gearboxes: For precise nutrient distribution in soybean and corn fields.
Post Hole Digger Gearboxes: Built for digging fence posts or planting trees.
PTO Shafts: Forged alloy steel shafts for secure power transfer.
Flail Mower Gearboxes: Perfect for clearing brush and weeds.

Whether you’re buying a rotary mower gearbox online or upgrading your equipment in Argentina, TEBSA delivers durability and value. Contact us today to explore our full catalog or get a quote tailored to your needs.