The EP Series RC-30 right angle gearbox from TEBSA Argentina is engineered for lawn mowers and rotary cutters, delivering reliable power transfer for light to medium-duty tasks. With a 1:1.93 speed-up gear ratio, this gearbox is designed for 4-foot and larger rotary cutters, making it a go-to choice for maintaining lawns, pastures, and agricultural fields across Argentina’s diverse landscapes, from the Pampas to Córdoba’s rolling plains. Since 1997, TEBSA has crafted durable, cost-effective solutions, offering a 100% quality guarantee and a 50% cost advantage over original brands.

Featuring a horizontal input and vertical downward output, the RC-30 is built with a 1-3/8" 6-spline input shaft, complete with a 1/2" shear bolt hole and retaining ring groove, paired with a 1.47" 12-tapered spline output shaft. This setup ensures compatibility with most standard and medium-duty rotary cutters. High-speed ball bearings and heat-treated gears provide long-lasting performance, while a four-bolt mounting system aligns with industry standards. Each gearbox ships dry, requiring 16 ounces of 90W or 85W140 gear lube, and includes a blade carrier mounting nut and cotter pin for easy installation.

Technical Features and Performance of the RC-30 Gearbox

The RC-30 gearbox stands out for its thoughtful design and robust construction, tailored to meet the demands of lawn mowing and agricultural cutting. Its 1:1.93 gear ratio optimizes blade speed, making it ideal for tackling thick grass, weeds, and light brush on farms or estates. The heat-treated alloy steel gears and shafts undergo advanced processes like carburization and quenching, ensuring resistance to wear even under Argentina’s tough field conditions, where soybean and wheat harvests push equipment to the limit.

The gearbox’s compact right-angle design minimizes stress on the mower’s driveline, improving efficiency and reducing maintenance needs. High-speed ball bearings support smooth operation at a rated input of 540 RPM, delivering up to 30 horsepower for reliable cutting power. The four-bolt mounting system ensures a secure fit, while the included blade carrier nut and cotter pin simplify setup for farmers in Buenos Aires or Mendoza.

For clarity, here are the key specifications:

Applications and Benefits for Argentine Farmers

The RC-30 gearbox shines in a range of applications, from residential lawn care to large-scale agricultural tasks. It’s a perfect fit for 4-foot or wider rotary cutters used to clear pastures, trim roadside verges, or maintain orchards in Argentina’s fertile regions like Santa Fe. Its versatility suits light-duty mowers for small farms and medium-duty cutters for bigger operations, handling everything from grass to light crop residue with ease.

Farmers benefit from the RC-30’s durability and efficiency. The heat-treated gears, made from high-strength alloy steel, resist wear during long hours of cutting—an essential feature for Argentina’s peak harvest seasons. The gearbox’s design keeps maintenance straightforward, with accessible bearings and a standard oil capacity of 16 ounces, reducing downtime on farms in Rosario or beyond. Its 24.5 kg weight strikes a balance between sturdiness and ease of installation, while the four-bolt mount ensures a tight, industry-standard connection.

Here’s why the RC-30 is a smart choice:

Cost Savings: TEBSA’s 50% cost advantage makes it an affordable upgrade compared to other brands.
Long Life: Heat-treated components and high-speed bearings mean fewer replacements.
Easy Fit: Standard spline shafts match most rotary cutters, from light to medium-duty models.
Reliable Power: The 1:1.93 ratio delivers consistent blade speed for clean cuts.
Local Support: TEBSA’s team in Argentina responds within 24 hours to keep you moving.

For specific tasks, the RC-30 excels in scenarios like:

Maintenance and Installation Tips for the RC-30

To get the most out of your RC-30 gearbox, proper setup and care are key. Before installing, check the 1-3/8" 6-spline input shaft and 1.47" tapered output shaft for any shipping damage. Secure the gearbox using the four-bolt mount, ensuring alignment with your rotary cutter’s frame to avoid vibration. Use the included blade carrier nut and cotter pin to lock the blade assembly in place. Fill the gearbox with 16 ounces of 90W or 85W140 gear lube—TEBSA recommends high-quality lubricants to protect the gears and bearings.

Regular maintenance keeps the RC-30 performing at its best:

Inspect Monthly: Look for oil leaks, worn bearings, or loose bolts, especially after heavy use in Argentina’s dusty fields.
Check Oil Levels: Top up or replace gear lube every season to maintain smooth operation.
Clean the Shaft: Remove debris from the input shaft to prevent wear on the spline.
Align Properly: Misalignment can stress gears, so double-check during installation.
Store Safely: When not in use, keep the gearbox covered to shield it from Argentina’s humid climate.

By following these steps, farmers can extend the gearbox’s life, whether they’re mowing lawns in Mendoza or clearing fields in La Plata. The RC-30’s design makes it easy to service, with replaceable parts available through TEBSA’s responsive support team.

For a quick reference, here’s a maintenance checklist:

About TEBSA and Our Agricultural Solutions

Since 1997, TEBSA has been a trusted name in Argentina, delivering high-quality agricultural gearboxes with a focus on reliability and affordability. Based in the heart of Argentina’s farming region, we understand the needs of local farmers, from small-scale growers to large agribusinesses. Our ISO9001-2015 certification reflects our commitment to quality, while our 50% cost advantage and 24-hour response team make us a dependable partner for your equipment needs. Whether you’re harvesting soybeans in Santa Fe or maintaining pastures in Buenos Aires, TEBSA’s solutions are built to last.

Beyond the RC-30 lawn mower gearbox, we offer a wide range of agricultural products to power your farm:

Rotary Cutter Gearboxes: Models like the RC-61 for heavy-duty cutting tasks.
Fertilizer Spreader Gearboxes: For precise nutrient application.
Post Hole Digger Gearboxes: Ideal for fencing and planting.
Rotary Tiller Gearboxes: Built for soil preparation.
PTO Shafts: Durable power transfer for various implements.

Each product is crafted with the same care as the RC-30, using materials like alloy steel, stainless steel, and precision-cast components. Our advanced manufacturing—featuring forging, carburization, and surface treatments like blackening—ensures durability in Argentina’s demanding conditions. Ready to upgrade your equipment? Contact TEBSA today for the RC-30 or explore our full catalog at agricultural-gear-boxes.com.